Class_S^_ 4 0(^ Bonk Ts^ PKESENTED WT /- THE BOOK OF HARDY FLOWERS BY THE SAME AUTHOR THE COMPLETE CARDENER ROCK GARDENING FOR AMATEURS THE GARDEN AT HOME THE IDEAL GARDEN GARDEN FLOWERS AS THEY GROW GARDEN WORK FOR EVERY DAY GARDENING DIFFICULTIES SOLVED GARDEN PLANNING AND PLANTING LITTLE GARDENS, HOW TO MAKE THE MOST OF THEM POCKET GARDENER INDOOR GARDENING SWEET PEAS AND HOW TO GROW THEM H. H. THOMAS & WALTER E AS LEA THE ROSE BOOK CASS ELL <&» CO., LTD London, New Vork, Toronto &' Melbourne / SHIRLEY POPPIES THE BOOK OF ^ Hardy Flowers A simple and complete descriptive ^uide to the culti- vation in gardens of the trees and shrubs, perennial and annual flowers, that are hardy, or are suitable for plantin;^ out-of-doors in summer in temperate countries. EDITED BY H: H. THOMAS Author of "The Ideal Garden," "The Complete Gardener," etc. Beautifully Illustrated with Thirty-two Direct Color Photographs by H. Essenhigh Corke and Sixty-four half- tone Plates FUNK & WAGNALLS COMPANY New York CASSELL & COMPANY, Limited London 1915 cm FubUahot OCT 33 I3I» \a PREFACE The " Book of Hardy Flowers " is an attempt to provide the garden lover, in as simple and non-technical a manner as possible, with a work of reference to which he may turn for essential information concerning the flowers, trees, and shrubs that are suitable for growing in these islands and in other countries or districts where similar climatic conditions prevail. Herba- ceous perennials (those that lose their leaves and stems each autumn but start into fresh growth in spring) and annuals (those that perish after having blossomed) are grown more extensively than other kinds, and are given special attention in the following pages. Full reference, however, is made to plants that are indispensable in summer gardening though needing protection from frost in winter. Although, for the sake of convenience and ready reference, the book is arranged in alphabetical order of botanical names, the popular names, if existing and of sufficient interest, are given also, and further to simplify reference an index of these is published at the end of the work. It is often of value in gardening to know of the country in which a plant grows wild, for an acquaintance with the con- ditions in its native habitat may help towards its successful cultivation, more especially in the matters of providing an aspect and position suited to its needs. For this reason the country or place of origin of the various plants is stated. The descriptions have been written with the view of giving not only the colour of the flowers, but the height of the plants vi PREFACE and the season at which they are seen in full beauty If no time of blossoming is mentioned, it may be taken for granted that the flowers open in summer. In the notes dealing with the propagation of trees and shrubs it will be noticed that the chief methods practised are sowing seeds, taking cuttings, grafting, budding, and layering. As in all cases the seasons for carrying out these " operations " are not mentioned, it may be well to give the following information. Theoretically, it is best to sow seeds as soon as they are ripe, though in practice this work is often deferred until spring, when, owing to increasing warmth, germination takes place more quickly. Some seeds are notoriously slow in germinating, as, for example, those of certain trees, shrubs, and alpines, and it is necessary to sow these immediately they have matured. The seeds of Oaks, Chestnuts, and a few other trees lose their vitality very quickly if allowed to become dry ; therefore, if not sown as soon as ripe, they ought to be stored in moist sand. Cuttings of hardy shrubs are inserted in sandy soil in a closed frame in July or out-of-doors in early autumn. Grafting is carried out in March, budding in July, and layering in March or late in summer, the layered branches being left undisturbed for at least eighteen months. The illustrations are a feature of the book, and altogether show some two hundred different shrubs and flowers ; thus it may be hoped that they will assist the reader in the identification of those with which he is not familiar, I have to acknowledge the valued assistance of several con- tributors in the preparation of the " Book of Hardy Flowers," and particularly of Mr. W. DalUmore, Mr. Thomas Smith and Mr. W. Truelove u tt -p LIST OF ILLUSTRATIONS COLOURED PLATES Shirley Poppies ..... Anchusa ....... Alpine Auricula ..... Border of Thrift and Tufted Pansies . Low Wall Planted with Spring Flowers BOCCONIA CORDATA (PlUME PoPPY) Border of Clarkia and other Annuals Campanula Portenschlagiana (Bellflower) Sweet William, Torch Lily and Juniper White Pinks as an Edging Border Chrysanthemums Rockery Mound Tulip Inglescombe Pink . Dianthus Spencer Bickham (Alpine Pink) Delphinium (Perennial Larkspur) Pinks in a Flagged Path LiLiuM pardalinum (Panther Lily) Hollyhock Palling Belle Lychnis chalcedonica Primula Unique Flag Irises and Tulips . Oenothera speciosa (Evening Primrose) Lychnis Viscaria splendens plena . Frontispiece FACING PAGE 6 22 38 54' 66 78 84 92 98 no 118 132 150 164 172 180 214 222 230 234 242 262 Vlll LIST OF ILLUSTRATIONS Phlox Vivid . Pentstemon heterophyllus Phlox G. A. StrShlein . Primula saxatilis . Rock Garden in June Rhododendron purpureum elegans Salvia splendens (Scarlet Sage) Saxifraga Clibrani Silene pendula . . . . FACING PAGE 292 306 322 370 390 402 418 BLACK-AND-WHITE PLATES FACING PAGE Abies lasiocarpa (Silver Fir) ...... 2 Acanthus mollis (Bear's Breech) ...... id Achillea filipendulina (Yellow Milfoil) , . . .10 Achillea Perry's White (White Milfoil) . . . .10 ACROCLINIUM ROSEUM (FaIRY ImMORTELLE) . . . . . lO Acantholimon venustum (Prickly Thrift) . . . -14 Androsace lanuginosa (Rock Jasmine) . . . . -14 Amaryllis Belladonna (Belladonna Lily) . . . .18 Anemone sylvestris (Snowdrop Windflower) . . .18 Anthemis tinctoria (Chamomile) . . . .18 Aquilegia glandulosa (Columbine) . . . . . .18 Anemone apennina (Apennine Anemone) . . . z6 Anemone nemorosa flore pleno (Double Wood Anemone) . 26 Anthemis Montana (Chamomile) ...... 26 Arenaria balearica (Balearic Sandwort) .26 An Ideal Rock Garden ........ 30 AUBRIETIA in the RoCKERY ....... 34 Anemone Pulsatilla (Pasque Flower) ..... 42 Anomatheca cruenta ........ 42 Begonia ........... 42 Brachycome iberidifolia (Swan River Daisy) .... 42 Bank planted with Thrift ....... 46 LIST OF ILLUSTRATIONS Arenaria laricifolia (Sandwort) HeLICHRYSUM BELLIDIOIDES (EVERLASTING) Hardy Border Flowers .... Water Lily Pool ..... CENTAUREA MONTANA (PERENNIAL CORNFLOWER) COLCHICUM AUTUMNALE (MeADOW SaFFRON) Convolvulus cneorum (Bindweed) . Crinum capense ..... Rock Garden in a Hollow Campanula Medium (Canterbury Bbll) . Chrysanthemums from Seed Chrysanthemum Parthenium . Crucianella stylosa (Crosswort) Cerastium tomentosum .... Cimicifuga racemosa .... ChOISYA tern ATA (MEXICAN ORANGE BlOSSOM) CisTUs ladaniferus (Rock Rose) Clematis Montana (Mountain Clematis) . Clematis Nellie Moser .... Cortaderia argentea .... Cyclamen repandum .... CupRESsus lawsoniana lutea (Golden Cypress) KOCHIA TRICHOPHYLLA (SuMMER CyPRESS) . Edraianthus pumilio .... Erodium trichomanaefolium . Delphinium (Perennial Larkspur) . Delphinium (Annual Larkspur) Dianthus caesius (Cheddar Pink) . Dianthus deltoides (Maiden Pink) Dianthus (Pinks) in Dry Wall Campanula Moerheimi (Bellflower) Daboecia polifolia (Irish Heath) . Daphne cneorum ..... Dodecatheon media (American Cowslip) . Echinops Ritro (Globe Thistle) Eremurus robustus (King's Spear) Fabiana imbricata IX FACING FAGE 50 50 58 62 70 70 70 70 74 82 82 82 82 94 94 102 106 114 114 114 114 122 126 140 140 146 154 154 154 154 158 158 158 158 166 166 166 LIST OF ILLUSTRATIONS FuNKiA (Plantain Lily) .... Rose Blush Rambler .... Rhododendron Broughtoni aureum Gentiana acaulis (Gentianella) Gentiana septemfida (Gentian) Geranium (Crane's Bill) Hydrangea hortensis .... Gentiana lutea (Yellow Gentian) Galega Hartlandi (Goat's Rue) Grass Steps in the Pleasure Grounds . Gypsophila repens rosea ICniphofia caulescens (Torch Lily) Habenaria (Hardy Orchid) Hemerocallis fulva (Day Lily) Heracleum giganteum .... HiERACIUM (HaWKWEED) .... HeSPERIS MATRONALIS FLORE PLENO (RoCKET) Gilia tricolor ..... Impatiens hybrida (Balsam) Iris stylosa (Algerian Iris) Jasione Jankae (Sheep's Bit Scabious) . Hardy Perennial Edging Plants . Leontopodium macranthum (Edelweiss) LiNUM perenne (Blue Flax) . Lupin us arboreus (Tree Lupin) Lysimachia clethroides .... OxALis enneaphylla (Wood Sorrel) Leucothoe Catesbaei .... Linum flavum (Yellow Flax) Lithospermum intermedium (Gromwell) . Polygonum lanigerum .... Lilium croceum (Orange Lily) LiLiUM Martagon (Martagon Lily) . Lilium longiflorum (White Trumpet Lily) Lilium testaceum (Nankeen Lily) . Primula littoniana .... Saponaria ocymoides (Soapwort) LIST OF ILLUSTRATIONS XI Magnolia soulangeana (Lily Tree) Meconopsis aculeata (Himalayan Poppy) MiMULUS CARDINALIS (MoNKEY MuSK) Narcissus Johnstoni, Queen of Spain Mesembryanthemum (Ice Plant) Mesembryanthemum crassulaceum Nephrodium Filix-mas (Male Fern) Nymphaea (Water Lily) Magnolia conspicua (Yulan) . Wistaria Sinensis . Narcissus Lady of the Snows Nemesia strumosa . Nepeta Mussini Noccaea alpina Olearia stellulata (New Zealand Daisy Bush) Ononis fruticosa (Rest Harrow) Onopordon acanthium (Cotton Thistle) . Opuntia (Prickly Pear) ..... Orchis foliosa (Madeira Orchis) Hardy Herbaceous Flowers in a Formal Garden. Flower Borders in an Irish Garden Pentstemon Scouleri, the Beautiful Lilac-coloured Papaver nudicaule (Iceland Poppy) Pennisetum longistylum Philadelphus coronarius (Mock Orange) Pyrethrum Pink Pearl Picea pungens glauca (Spruce Fir) Pratia angulata Primula bulleyana Primula frondosa Primula Sikkimensis Olearia macrodonta Ranunculus Flowers Rehmannia angulata Rodgersia podophylla rubus biflorus Rhododendron Mrs. T. Agnew FACING PAGE 274 274 274 274 278 278 278 278 282 282 286 286 286 286 300 '•^ 310 310 310 318 326 330 330 330 330 334 348 348 348 348 364 .. 374 374 374 374 378 Xll LIST OF ILLUSTRATIONS Rose Gloire de Dijon Roses and Michaelmas Daisies RUBUS deliciosus Rudbeckia purpurea Rose Duchess of Wellington Rose Francois CoppSe Rose May Miller . Rose Mrs. Alfred Tate . Saxifraga burseriana SCOLOPENDRIUM (HaRT'S ToNGUK FeRN) Sedum spectabile (Japanese Stonecrop) Spiraea decumbens Salvia globosa Salvia patens Saxifraga longifolia Saxifraga Wallacei Saxifraga lingulata Shortia galacifolia SiSYRINCHIUM striatum Spiraea japonica SCILLA HISPANICA Silene pendula Spiraea Aruncus Spiraea Ceres Schizocodon soldanblloidbs Sedum caeruleum Silene alpestris Tulips in the Flower Garden Viburnum Mariesi Viola cucullata Vkrbascum densiflorum . Yucca filamentosa . Yucca oloriosa THE BOOK OF HARDY FLOWERS Abelia. — The Abelias are highly decorative shrubs belonging to the Honeysuckle family (Caprifoliaceae). They are not thoroughly hardy, but may be grown in the open ground in the mildest parts of the country and against walls in the Midlands ; in northern gardens the protection of a cool greenhouse is necessary. Propagation is easily effected by means of cuttings of young shoots taken during summer and inserted in pots of sandy soil in a closed, warm frame. Light, but rich loamy soil forms a suitable rooting medium, and no regular pruning, other than the removal of the old fiower-heads, is required. Abelia grandiflora is a hybrid plant with evergreen leaves and white rose-flushed flowers produced in clusters from the ends of the branches in summer ; floribunda, a handsome evergreen shrub, with long tubular red flowers, in April, native of Mexico ; serrata, a vigorous shrub from Japan bearing red flowers in April ; and triflora, a tall-growing sort from the temperate Himalaya, with white flowers in summer, are all desirable. Abelia flori- bunda is the most delicate shrub, and must be given a sunny position against a wall if it is tried out-of-doors. Abies {Silver Fir). — This group belongs to the cone-bearing trees (Natural Order Coniferae), and the numerous kinds are widely dis- tributed through Europe, the Himalaya, Siberia, Japan, and North America. They are known collectively as Firs, or Silver Firs, and may be distinguished from the Spruces or Spruce Firs by several well-marked characters. In most cases the evergreen leaves are flattened, with blunt or notched ends, and are arranged in distinct rows on either side of the branches ; in only one or two kinds do they surround the branches. It is usual to find two silvery lines on the lower surface. The cones, however, offer the chief distin- guishing points from their close allies the Spruces (Picea), for they are borne in an upright position upon the branches and break up as soon as the seeds are mature. The cones of the Spruces, on the B 2 THE BOOK OF HARDY FLOWERS other hand, are pendulous, and do not break up when the seeds are ripe. Although they are usually grown in this country as ornamental trees, many of the Abies produce valuable timber in their native habitats, and one kind, Abies pectinata, the common Silver Fir of Europe, is used for forest planting in the British Isles ; its timber is white, easily worked, and often called White Deal, while the tree is particularly useful for shady places. They are excellent trees for country gardens, where the atmosphere is free from sulphurous and other noxious fumes, but are unsuitable for town planting. The cultural requirements embrace the suitable working of the ground before planting, shallow planting, i.e. placing the upper roots about half an inch below the surface, and the removal of dead inside shoots as well as any of the lower branches that may die or become unsightly. Propagation should be by seeds sown under glass in January or out-of-doors in March, and plants raised by other means must be looked upon with suspicion. Light or heavy loam and sandy peat, providing they are naturally moist but well drained, are alike suitable soils. The most ornamental kinds are : amabilis, a grey-leaved tree from British Columbia, Oregon, etc. ; brachyphylla, a tall, dark- leaved tree of symmetrical outline, native of Japan ; cephalonica, the Grecian Fir, grows into a very large tree ; concolor, lasiocarpa, and lowiana are Western North American trees of highly decora- tive character, known collectively as White Firs ; firma is a dark- leaved tree from Japan, with long deeply notched foliage ; magnifica, native of California, forms a handsome specimen ; while nobilis, a beautiful glaucous-leaved tree, often suffers from a disfiguring dis- ease in the warmer parts of the British Isles. Other good kinds are : Numidica, Pinsapo, and Veitchii. Abronia {Sand Verbena). — A small family of half-hardy annuals and perennials, natives of California, belonging to the Natural Order Nyctaginaceae. They bear pretty Verbena-like flowers during sum- mer and autumn. The plants are of trailing habit, thrive best in light sandy soil and a sunny position, and are suitable for the rockery or front of a flower border. Sow the seeds in a cold frame in autumn, or in a warm greenhouse in February and early March. Usually they are slow to germinate, and should be soaked in warm water for twelve hours previous to sowing. Plant out the young seedlings towards the end of May where they are to flower. Unless the peren- nials are in a sheltered position some protection must be afforded in winter. The most useful sorts are : arenaria, lemon-yellow, 12 ONE OF THE SILVER FIRS (ABIES LASIOCARPA) ABUTILON inches, half-hardy perennial ; fragrans, white, i8 inches, half-hardy perennial ; umbellata, rose-coloured, 12 inches, half-hardy annual. Abutilon {Indian Mallow).— A group of decorative plants belong- ing to the Mallow family (Malvaceae), composed of numerous species or wild types, and many varieties raised by florists. They are found in tropical Asia, Africa, Brazil, Mexico, Colombia, Chili, and other countries. One kind, Abutilon vitifolium, is hardy in the milder parts of the British Isles ; but the majority require the shelter of a greenhouse. They may be grown in pots or borders, and thrive in a compost of 4 parts fibrous loam, i part peat or leaf-mould, and I part coarse sand. When well rooted, manure water must be given once or twice a week. An annual prun- ing is necessary, February being a good time for the work. Cut all secondary branches back to within a few buds of the base of the previous year's growth. Any necessary repotting may be conducted when the new shoots are about half an inch long. In summer they are very use- ful for grouping in beds and borders out-of-doors, and thrive in light, rich soil. They are put in the open early in June and hfted about the end of September ; if only small plants are required, insert a few pots of cuttings in the greenhouse during August. Store the old plants in a greenhouse during winter, and in spring, when growth is about to commence, prune the young shoots fairly hard, and repot when new shoots form. Some of them may be taken off and inserted as cuttings if further plants are wanted. Abutilons vary from 2 to 6 feet or even more in height, according to their age and the amount of pruning annually given in spring. Those having attractive foliage are : Savitzii, green and white ; Thompsoni, mottled freely with yellow ; Megapotamicum variegatum, long slender shoots, rather small leaves, mottled with yellow and green ; Souvenir de Bonn, large green leaves, edged with white. Free-flowering Abutilons FLOWERS OF ABUTILON 4 THE BOOK OF HARDY FLOWERS are Golden Fleece, yellow ; Boule de Neige, white ; Firefly, red ; and Clochette, rosy-pink. Abutilon vitifolium, native of Chili, forms a bush from 8 to 12 feet high, and bears violet-blue flowers in summer. Abutilons may be readily raised from seeds sown in a heated greenhouse during February and March. Acacia (False). — {See Robinia.) Acacia {Wattle). — The Acacias belong to the Pea family (Natural Order Leguminosae), and consist largely of timber trees, native of Australia, though comprising also numerous scrubby trees or bushes which are found in the arid regions of Arabia, East and South Africa, and other countries. The timber of several of the Australian kinds is valuable for furniture and other purposes, and the bark is rich in tannin. Gum, including Gum Arabic and Gum Senegal, is obtained from several of the African and Asiatic species. The flowers of many Australian sorts are very showy, and as several are adapted for growing in pots and blossom when small, they are highly desirable for the greenhouse. Some kinds thrive quite well and form good- sized trees in the open in the milder parts of Cornwall and Ireland, and in other places it is only necessary to protect them from frost. Large quantities of branches of one or two kinds are forced in the south of France and sent to this country during spring under the name Mimosa. Propagation is effected by means of cuttings of young shoots dibbled into pots of sandy soil composed of 2 parts loam, 2 parts peat, and i part silver sand. The cuttings may be inserted during spring or early summer. Those required for pots must be grown in a warm, moist greenhouse and be stopped several times to induce a bushy habit. A compost made up of equal parts of loam and peat with a fair proportion of sand is necessary. It is often wise to feed the plants with manure water rather than repot frequently after they have reached the flowering size. They ought not to be allowed to bloom before the end of the second year. After flower- ing, cut the branches back, place the plants in a warm and moist greenhouse until new shoots appear, then repot if necessary. As soon as the roots are working into the new soil well, admit plenty of air, and about mid-June stand the plants out-of-doors in full sun, where they may remain until September. Do not allow them to become dry at the roots at any time. Throughout winter the plants may be grown in an ordinary dwelling-room, if desired. Plants grown in borders under glass should be pruned fairly hard after flowering. The following species are suitable for pots or a border under glass : armata and its variety angustifolia, Baileyana, cultriformis, Drum- ACAENA 5 mondii, leprosa, myrtifolia, platyptera, Riceana, pulchella, and verti- cillata. Acacia dealbata is only suitable for planting in a border. Acaena {New Zealand Bur or Burwood).—Dy/a.Ti creeping or trailing plants, with evergreen foliage belonging to the Rose family (Rosaceae). They are easily grown in hght soil, and are chiefly used in the rockery, in the crevices of stone paving and rough steps, or as an edging to a border of choice alpine plants. Acaenas are readily propagated by seeds sown in spring or summer, by division of the clumps from October to March, and by cuttings inserted in a cold frame from May to July. The dainty foliage, and the spine-like heads of fruits rather than the tiny flowers, are the chief attractions of Acaena. The following are the best : inermis, foliage bronze- green, 6 inches ; microphylla, close-growing bronze-green foliage, freely interspersed in autumn with spiny crimson heads of fruits, 2 to 3 inches ; Novae-Zealandiae, dwarf-spreading growth, metallic- bronze foliage, crimson fruits, 3 inches ; argentea, metallic-green foliage, quaint spikelets or heads of fruits, 4 to 6 inches. All are natives of New Zealand except argentea, which comes from Chili. Acalypha. — As they are natives of warm countries, the Acalyphas must be grown in a heated greenhouse in winter, but during summer, from early June until September, they may be planted in beds and borders out of doors, being especially valuable for sub-tropical bedding, in which plants with striking foliage are chiefly used. They belong to the Spurge family (Euphorbiaceae). The undermentioned kinds have inconspicuous flowers, borne on spikes which develop in the axils of the leaves during summer ; their value lies in the handsome highly coloured leaves, which are large and beautifully variegated. Increase is by cuttings inserted during August or in spring. The plants may be " grown on " for several years : when in large pots or tubs they are invaluable for sunny but sheltered positions in the garden. If it is found necessary to limit the size of the plants slight pruning is practised in autumn and fairly hard pruning in early March. As a potting soil use equal parts loam, leaf-mould, and peat, with coarse sand. The best Acalyphas for sub-tropicalgardening are: Macafeeana, red, blotched bronze-crimson, Fiji ; macrophylla, russet-brown, pale blotches ; mar- ginata, rich brown, margined rosy-carmine, India ; musaica, bronze- green, mottled with red and orange, Polynesia ; tricolor (or wilkesiana), copper-green, mottled with red and crimson, New Hebrides. The colour description refers to the leaves. The plants vary from i^ to 6 feet or more, according to the method of pruning. When only small plants are wanted root sufficient cuttings annually in August and discard the old plants in autumn; 6 THE BOOK OF HARDY FLOWERS Acantholimon (Prickly Thrift). — A small family of dwarf-tufted evergreen plants belonging to the Natural Order Plantagineae, which includes the Common Thrift. They are natives of Asia Minor, and, growing only 3 to 6 in. in height, are suitable for the rockery or the front row of the flower border. Propagation is by seeds sown in a cold frame in spring, by cuttings inserted during August or September, also in a cold frame, and by division in March or early April, this being the best time to replant, though if the plants are happy it is better not to disturb them. Sandy loam is a suitable soil, and a sunny position should be chosen. The best kind and that usually grown is Acantholimon glumaceum (sometimes called Statice Ararati), which forms a close-growing cushion of deep green spiny foliage. The wiry flower stalks push up to a height of some 6 inches in summer, each bearing six or more rose-coloured flowers A inch across. A second kind is Acantholimon venustum, with rose-coloured flowers ; it is rather larger in every way than the preceding, but is a rarer plant. Acanthopanax. — This group belongs to the Aralia family (Araliaceae), and consists of trees and shrubs found in China and Japan. Three hardy kinds have been introduced, viz. ricinifolium, a timber tree with ornamental leaves, native of both countries ; sessi- liflorum, a rather uninteresting bush from China ; and spinosum, a Chinese and Japanese bush. The last-named may be distinguished by its five-lobed leaves ; its variety variegatum has pretty golden variegated leaves. They thrive in ordinary garden soil, and require no regular pruning. Propagation is by means of seed sown out-of- doors in early autumn. The variegated variety is increased by cut- tings taken in July or September. Acanthus {Bear's Breech). — Interesting hardy perennials belonging to the Natural Order Acanthaceae, and native of Southern Europe. The foliage is ornamental, being prettily divided, while from early July to October bold spikes of purple and white flowers are produced. Propagation is by division of the clumps in March, and by seeds sown in a greenhouse or frame from April to June. The plants will thrive in ordinary garden soil, except that which is heavy and ill-drained ; the position may be in full sun or half-shady. Acanthus are not among the plants one would recommend for a small border of choice herbaceous perennials, but they deserve inclusion in a large border, are very pretty in groups along the front of the shrubbery border, make an attractive bed for a lawn, and may be freely used in the wild gaiden. The most useful kinds are : longifolius, leaves 2 to 3 feet long, flower spikes 3 to 4 feet high ; mollis, prettily divided foliage. THE ITALIAN ALKANET (ANCHUSA ITALICA "OPAL") ACER 7 3 feet ; var. latifolius, very useful for bedding, 5 feet, and spinosus, attractive spiny foliage, 2 to 3 feet. Acer (Maple). — Large-growing trees and bushes, members of the Natural Order Sapindaceae. They are commonly called Maples, and are distributed through Europe, the Himalaya, China, Japan, and North America, several being important timber trees, whilst the sap of the North American Acer saccharinum provides Maple sugar.- Two kinds. Pseudo-plat anus (the Sycamore) and platanoides (the Norway Maple), are grown in this country for the sake of their timber, wliich is used largely for the rollers of mangles and washing-machines ; whilst the wood of the Common Maple (campestre) is also of value. All the large-growing sorts are valuable for decorative planting, and may be Tised as isolated specimens, groups, or avenue trees. A group of dwarf kinds, known collectively as Japanese Maples, is composed of numerous varieties of Acer palmatum and japonicum. These varieties are attractive both by reason of their finely lobed leaves and the brilliant colouring of their foliage in spring and again in autumn. They are excellent for the outdoor garden, except in the coldest part> of the country, and are also useful for growing in pots for the green- house or conservatory in spring. The Acers thrive in almost any kind of well-drained soil, but prefer that of a loamy character. Most of them have broad, conspicuously lobed leaves, but a few have pinnate leaves. There are numerous kinds with variegated foliage which are popular for ornamental plant- ing. Seeds are usually used for the increase of species, whilst varieties are propagated by layering, budding, or grafting. Pruning should be limited to keeping the leaders clear of rivals and the removal of lower branches when necessary. The following are among the best : campestre, Europe, 20 to 40 feet, and its vars. compactum and variegatum ; carpinifolium, Japan, 20 to 30 feet, distinct foliage ; circinatum, California, 8 to 15 feet, leaves colour brilliantly in autumn ; dasycarpum (Silver Maple), Eastern North America, large tree, lower surface of leaves silvery ; japonicum, Japan, bush, showy leaves ; also vars. aureum, microphyllum, etc. ; macrophyllum, California, large tree, fine inflorescences ; negundo (Box Elder), United States, 40 feet, pinnate leaves ; the variety variegatum, with green and silver leaves, is a popular small tree. Acer palmatum, from Japan, is a bush with decorative leaves ; the following are beautiful varieties : crispum, roseo-marginatum, sanguineum, septemlobum, atropurpureum, elegans, dissectum, etc. Other kinds are : platanoides (Norway Maple), Europe, large tree ; s THE BOOK OF HARDY FLOWERS Pseudo-plat anus (Sycamore), Central Europe and Western Asia, large tree ; and its varieties, flavo-marginatum (Corstorphine Plane), golden variegated leaves, Prinz Handjer}', golden leaves ; purpureum, purple leaves. Acer rubrum (Red Maple), North America, is a large tree, red flowers, silvery bark ; Volxemi, from the Caucasus, is a vigorous tree with large leaves. Aceras anthropophora (Green Man Orchis). — This is one of the British terrestrial Orchids (Natural Order Orchideae) found growing wild in chalky meadow land in the south-eastern counties. This kind of soil must be introduced for its successful cultivation in the rockery or in the border devoted to the growing of rare and in- teresting treasures. Increase is by careful division of the tubers in autumn. The flowering season is June, when a spike of greenish flowers, hned or margined with red, lo to 12 inches high, appears. Achillea (Milfoil or Yarroif). — This is rather an important class of hardy perennials belonging to the Daisy family (Compositae), and chiefly native of Europe. They are easily grown, and thrive in most soils and in a sunny or half-shaded position. Several of the taller growing sorts are important border plants, while those of dwarf habit are valuable in the rock garden. Propagation is by di\nsion during mild weather from the end of October to March, when re- planting may also be done. Seeds may be sown during April or May in a cold frame or out-of-doors ; another method of increase is to insert some of the young gro\\-ths as cuttings in late spring when about 2 inches long. They root readily in a closed frame. The foliage of the Milfoils is distinctly ornamental, being more or less finely cut. The flowering season is from June until September. Several are very useful for supplying cut flowers for indoor decora- tion, notably Achillea Ptarmica The Pearl. The best border kinds are : fiiipenduhna (syn. Eupatorium), flat corymbs of golden-yellow flowers, 3 to 4 feet ; Millefolium roseum or Cerise Queen, rosy-crimson, 2j to 3 feet ; Ptarmica The Pearl, a double Sneezewort, pure white double flowers, 2 feet (Perry's variety has larger, double white flowers, and grows some 6 inches taller) ; sibirica (s\n. mongolica), white, i^ to 2 feet; decolorans (syn. ser- rata) flore pleno, white flowers, pretty serrated foliage, 2 feet. Use- ful kinds for the rock garden and front of flower borders are : Cla- vennae, white, silvery foliage, 6 inches ; rupestris, pure white, pleasing rich green cushion of evergreen leaves, 4 inches ; compacta (syn. sericea), white flowers, silvery rosettes of leaves, 6 inches, from the Orient ; tomentosa, a splendid plant with fern-hke foHage and rich ACONITUM 9 -Useful herbaceous plants golden-yellow flower heads, 9 to 12 inches ; umbellata, white flowers and silvery-white foliage, 6 inches. Aconite, Winter. — (See Eranthis.) Aconitum (Monkshood, Wolfs-bane). belonging to the Buttercup family (Ranunculaceae). The roots are poi- sonous. One kind (Aconitum Napel- lus) grows wild in the western counties and Wales. The Monkshoods thrive in ordinary garden soil in sunny or shaded posi- tions ; they are among the best perennials for a north border, while in the wild garden and shrubberj^' bor- ders the blue flowers are indispensable. Propagation is by seeds sown on a border out-of-doors from April to June, and by division of the roots during March. When thriving and flowering freely leave the plants undisturbed for some years. The flowering season extends from June to October. The best kinds are : Fischeri, clear blue, September to October, 3 feet ; japonicum, deep violet-blue, September and October, 3 to 4 feet ; Napellus (the Common Monkshood), indigo-blue, June to September, 5 to 6 feet, in good soil ; var. album is white ; var. bicolor, blue and white ; and var. pyramidale, bluish-purple, July to September ; Hemsleyanum, a twining Chinese plant some 6 feet high, purple, July to September ; Wilsoni, violet, September to October, 5 to 6 feet, China. Acorus {Sweet Flag or Myrtle Sedge). — For the sides of streams, ponds, and lakes this is an indispensable water plant (Natural Order Aroideae), but it is apt to increase rapidly, and unless checked will soon spoil other less vigorous ones. Propagate by division of the clumps from October to March, this also being the time for planting. There are two species : Calamus, wild in the Northern Hemisphere, with sword-shaped leaves about 3 feet high, and inconspicuous yellow ACHILLEA CLAVENNAE. A YARROW FOR THE ROCK GARDEN 10 THE BOOK OF HARDY FLOWERS flowers borne, in summer, on a cylindrical spadix, 4 or 5 inches long (var. variegatus is a very desirable waterside plant, with gold-striped leaves) ; gramineus, a smaller plant than the preceding, with grass- like leaves, is native of Japan (var. variegatus forms pleasing tufts of green and white striped leaves). Acroclinium {Australian I mrnorielle) . — A dainty half-hardy annual with " everlasting " flowers, native of Australia ; it belongs to the Daisy family (Compositae). The only kind is Acroclinium roseum, native of South-West Australia. A warm, sunny border and rather light sandy soil suit it best. Sow the seeds in a cool greenhouse or frame towards the end of March ; or out-of-doors, the second half of April, where the plants are to flower. The best effect is obtained when the plants are only some 2 inches apart, so the seeds must be sown fairly thickly. The flowers are a pleasing rosy shade, and are borne singly on erect slender growths, about 12 inches high. The variety album has white flowers ; flore albo pleno and flore roseo pleno are sorts with double white and double rose-coloured flowers respectively. If required for winter decoration, gather the blooms when quite dry and fully expanded, tie them in small bunches, and hang up, flower-heads downwards, in an airy shed to dry. The flower-heads are some J inch across with conspicuous golden-yellow centre. Actaea [Bane-berry or Herb Christopher). — The Actaeas are herba- ceous plants, belonging to the Buttercup family (Ranunculaceae). They have elegant fern-like fohage and graceful racemes of feathery white flowers during June and July, followed in autumn by red, white, or black berries. Propagation is chiefly by division of the clumps in late autumn or March, which is also the best time for planting ; also by seeds sown from April to June in a cold frame. For preference, when planting choose a position which is not too hot and dry ; an ideal spot is a moist, half-shaded border con- taining plenty of decayed leaf-mould in which the roots can ramble. There are only two species : alba, white berries, 2 feet. North America ; spicata, black berries, 12 to 18 inches, Northern Hemisphere. Spicata rubra has scarlet berries. Actinidia Chinensis is a most interesting plant, member of the family or Natural Order Ternstroemiaceae. It is a native of China, and was introduced to England about fourteen years ago. A vigor- ous climber, it may be planted against a wall, trellis, pergola, or small tree, in deep loamy soil. Weak ends of branches should be removed in spring. Its principal attraction lies in the reddish-purple hairs which form a dense covering to the young leaves and branches. The »fef. YELLOW MILFOIL (.ACHILLEA FILIPENDULINA) DOUBLE WHITE MILFOIL (ACHILLEA PTARMICA). PERRY'S W^HITE BEARS BREECH (ACANTHUS MOLLIS) FAIRY IMMORTELLE (ACROCLINIUM ROSEUM) ADENOCARPUS DECORTICANS n yellow flowers are upwards of i inch across, and the fruits are edible. Cuttings will root if placed in light soil in a close frame during summer. Actinidia arguta, Kolomikta, and polygama are coarse- growing Japanese kinds. They do not require regular pruning. All are deciduous. Adam's Needle. — {See Yucca.) Adder's Tongue. — {See Ophioglossum.j Adenocarpus decorticans is a Spanish shrub belonging to the Pea family (Leguminosae). Its chief attraction centres in the golden Broom-like blossoms, which are borne in profusion in May. As it is rather tender, a sunny position — preferably in the rock garden or at the foot of a wall — should be provided, and better results may be expected by planting it in hght loam than in very rich soil. It forms a dense bush 2 feet or so high, and is usually increased by seeds in spring. No regular pruning is required. Adenophora {Gland Bellflower). — A group of border perennials allied to the Campanulas, from which they are distinguished by a gland or nectary surrounding the base of the style. They belong to the Bellflower family (Campanulaceae). The plants thrive in a light, rich, rather moist soil and a sunny position. Increase is by seeds sown as soon as ripe or during spring in a cold frame. March is the time to plant ; but so long as the plants continue to thrive and blossom, leave them alone ; few perennials suffer more from disturbance at the roots. Six of the best are : latifolia (syn. pereskiaefolia), blue, one to three drooping flowers on a stalk, July and August, i| feet, Siberia ; liliifolia, fragrant blue flowers, freely borne on a loose pyra- midal inflorescence, July and August, i foot, Europe ; polymorpha, large blue flowers, July and August, 2 feet, China ; Potanini, pale blue, bell-shaped blooms on slender spikes, July and August, ij to 2 feet, Turkestan — there is a white variety of this kind ; stricta, with large blue flowers in July, grows 2 feet high, and is a native of Japan. Adiantum {Maidenhair Fern). — Only two of the large number of Adiantum, members of the Fern family (Filices), can be cultivated out-of-doors successfully in this country, and one of these, our native British Maidenhair (Adiantum Capillus- Veneris) is hardy only in the south and west unless the position is unusually warm and sheltered. The most suitable soil for Maidenhair Ferns is a mixture of loam, peat, and leaf-mould with some coarse sand. Increase is by division of the clumps in spring. Plant in shady nooks of the rockery or in a moist, shady border. Adiantum Capillus- Veneris is an evergreen Fern, growing some 6 to 9 inches in height ; it is widely distributed 12 THE BOOK OF HARDY FLOWERS in the warmer temperate regions, including Britain ; pedatum, a Nortla American kind, is hardier, and thrives freely outside with the Hart's Tongues and Polypods. The elegantly branched and divided fronds attain from ij to 2^ feet in height. \Vlien the fronds die down in autumn, cover the roots for the winter with 2 or 3 inches of decayed leaves. Adiumla cirrhosa {Climbing Fumitory). — This is a climbing biennial from North America, suitable for trailing over a trellis, veranda, or arbour in a sunny position ; it belongs to the Poppy family (Papaveraceae). The plants thrive in ordinary light, well- drained garden soil. Sow the seeds from May to July where the plants are to blossom the following year. Under favourable condi- tions, self-sown seedlings germinate annually in autumn. The twin- ing growths attain a height of from 12 to 15 feet, having delicate green tripinnate foliage suggestive of a Maidenhair Fern. There are two forms, one with white, the other with rose-tinted flowers ; these are tubular, about \ inch long, usually in clusters of four together, and are at their best in June. Adonis {Pheasant's Eye ; Ox-eye; Flower of Adonis). — A group of annual and perennial plants, members of the Buttercup family (Ranunculaceae), flowering in spring and summer. The finest peren- nial species is Adonis amurensis, with rich yellow flowers, resembling a giant Buttercup, from February to April, Fern-like foliage, i foot, native of Manchuria ; this is a charming plant for a sheltered corner in the rock garden, or at the foot of a south-west wall or fence ; its double variety, flore pleno, is handsome. Other kinds are : pyrenaica, bright yellow, April to June, i foot, Pyrenees ; vernalis, clear yellow, March to May, 6 to 9 inches, Europe. They thrive in a mixture of loam and leaf-mould, and are increased by division in September and October. The plants bloom best when left undisturbed for some years. The annual kinds are : autumnalis (Red Chamomile), scarlet, July, I foot, Europe, etc. ; and aestivalis, crimson, June, i foot, Europe, Orient. Sow the seeds late in March or during April where the plants are to flower ; select a sunny or half-shaded border, where the soil is rather light and well drained. Aegle. — The best-known species of this group of plants, which belongs to the Rue family (Rutaceae), is Aegle sepiaria, a green-branched bush armed with strong formidable spines, and bearing three-parted deciduous leaves, large white flowers, and orange-like fruits ; it is a native of China and Japan, and may be grown as an isolated bush or in the shrubbery, in loamy soil, or in the south it might be employed for hedges. Cuttings root readily in summer in sandy soil in a close AESCULUS 13 frame. A second species, Aegle marmelos, native of India, is some- times grown in hothouses. Its fruits, known as Bael fruits, are astringent, and used in cases of dysentery. Unless grown as a hedge plant, Aegle does not require pruning, except such as is necessary to keep the plants shapely when young. Hedges may be clipped any time during summer. Aesculus {Chestnut). — This group (Natural Order Sapindaceae) is composed of large- or small-growing deciduous trees and a few shrubs, all of which are of decorative value. It now includes all the trees which were at one time known as Pavia, there being no distinct dividing line between the various kinds. The most famiUar repre- sentative is the Horse Chestnut, a native of the mountains of Greece, and one of the most popular ornamental trees in European gardens. Other kinds occur in the Himalaya, China, and the United States. The timber is soft, light, and white in colour, its clean appearance making it popular for turnery, the backs of brushes, kitchen and dairy requisites, etc. All the Aesculus (or Chestnuts, as they are called in Europe, and Buckeyes in America) are easily grown in any fairly good soil, while the common kind thrives in the lightest ground. They may be planted almost anywhere from mid-Scotland south- wards, except in smoky towns, for which they are not adapted. Pro- pagation of the true species or wild types is by seeds, sown as soon as ripe, and of the varieties and hybrids by grafting in March, or budding in July. Pruning is necessary during the early years to encourage proper development and a shapely habit. Later it is confined to the removal of dead or injured branches. The following are the chief kinds : californica, a small wide-headed tree from California, which bears large inflorescences of white flowers in July ; carnea, well known as the Red-flowered Horse Chestnut ; it is of hybrid origin, and a very popular kind for lawn planting, the inflorescences of red flowers are very handsome ; the variety Briotii, however, is even better than the type. Flava is the Sweet Buckeye of North America, its chief charm lies in its yellow flowers ; glabra, the Ohio Buckeye, forms a medium-sized tree, and bears yellowish flowers. Hippocastanum, the Common Horse Chestnut, is one of the most beautiful and useful of all flowering trees, whether for planting in groups, as isolated specimens, or to form an avenue, its appearance is too well known to need description ; the variety flore pleno bears double flowers, and pyramidalis is of fastigiate habit. Indica, the Indian Horse Chestnut, is a native of the Western Himalaya ; it has handsome leaves, and the flowers, which appear in July, are similar to those of the Common Horse Chestnut. Parvifiora well deserves 14 THE BOOK OF HARDY FLOWERS consideration by reason of its shrubby habit and late flowering ; it forms a dense bush 8 to 12 feet high, and produces fine panicles of white flowers in August ; chinensis and turbinata are two new Chinese species with handsome foliage ; they have not yet flowered in this country. Aethionema {Burnt Candytuft). — A small family of hardy peren- nials and annuals allied to the Wallflower, and belonging to the Wall- flower family (Cruciferae). They thrive in light, rather dry soils, and succeed best, as a rule, on a sunny rockery or along the front of the flower border. Sow seeds of the annual species in April where the plants are to flower, and of the perennials in a cold frame or out-of- doors from April to June. The latter are also propagated by cuttings inserted in a cold frame or under a handlight during late summer. The best perennials are : coridifolium (Lebanon Candytuft), with close terminal heads of rosy-pink flowers, June to August, i foot. Orient ; grandiflorum (Persian Candytuft), pink, summer, i foot, Persia ; persicum, pink, June to August, 9 inches, Persia ; pulchellum, purplish- pink, June to July, 6 inches, Armenia. The best annual kind is cappa- docicum, rose, June to July, 3 inches, Orient. African Lily. — (See Agapanthus.) African IVIarigold. — {See Tagetes.) Agapanthus [African Lily). — Though usually cultivated in pots and kept in a frame or cool greenhouse during winter, the Agapan- thus, which belongs to the Lily family (LiUaceae), may be grown out- doors in the south and west, also in many suburban gardens in the London district at the foot of a south wall, providing the roots are protected by a heap of ashes. Whichever method is practised, the African Lily and its numerous varieties are very desirable plants. In large pots or tubs they are especially attractive when in flower during August and September, and are then commonly used for placing on terraces, steps, etc. The best method of increase is by division of the clumps in March or early April. Loamy (turfy) soil, with the addition of leaf-mould and old decayed manure, forms a suitable compost for plants in pots ; but those out-of-doors must be in well-drained light loam. During summer the Agapanthus delights in an abundance of water and liquid manure ; in fact, in hot, dry weather it revels in water, and plants are often plunged in the ground by the side of a pond. Repotting is seldom desirable ; when necessary, it should be done in spring. The Agapanthus is a native of the Cape of Good Hope, and was first introduced to Britain in 1692. The varieties vary considerably in size of leaf and height of the flower spikes. The typical kind, umbellatus, has bright blue funnel-shaped flowers, borne in an umbel or cluster on a stalk 2 to A ROCK JASMINE (ANDROSACE LANUGINOSA) PRICKLY THRIFT ( ACANTHOLIMON VENUSTUM) AGATHAEA CAELESTIS 15 3 feet high ; var. alba is similar, but with beautiful white blooms ; var. fiore pleno is double blue ; var. maximus is more vigorous, larger in all its parts, and a handsome plant ; var. minor is a dainty little kind, less than i foot in height. Mooreanus is dark blue, i^ feet, and var. variegatus has green and white-striped leaves. Agathaea caelestis (Blue Daisy). — This is a pretty South African plant, with blue, Daisy-like flowers, and a member of the great Daisy family (Compositae). Though really a greenhouse plant, it blooms freely for several months in summer, June to September, when planted in beds and warm borders out-of-doors. In one or two of the London parks the Blue Daisy is largely grown for summer bedding. The plants are bushy in habit, growing from i foot to i^ feet in height. Increase is by cuttings inserted during August in a frame or green- house. During winter, keep the plants on a shelf in a greenhouse, pot singly in 3|- or 4-inch pots in March, harden off by placing the plants in a cold frame the first week in May, and at the end of that month or early in June plant them outside in beds or borders. The Blue Daisy thrives in a rather light soil made up of sandy loam and leaf -mould. There is a variety in which the leaves are spotted or blotched with yellow. Agave {American or Mexican Aloe). — The Agaves are chiefly natives of Mexico, and belong to the Amaryllis family (Amaryllidaceae). They are striking plants for growing in large pots or tubs for the embellishment of steps, terrace walks and formal gardens in summer. Small plants are valued as " dot " plants in carpet bedding and beds of succulent plants. Agaves are propagated from suckers which push up around the parent plant, and by seeds sown in a greenhouse from March to July. A mixture of 3 parts loam and i part old mortar rubble and bricks constitutes a suitable soil. When repotting becomes necessary, which is not often, it should be done in spring. Agaves are of slow growth, and it is probably this fact which has led to their being designated " Century Plants," the theory being that the plants flower once in a hundred years. The facts are that they attain a considerable age before they flower — it may be twenty to fifty years or more— and after having flowered they die. During winter Agaves must be preserved from frost either in a cool green- house or a frost-proof shed where they can get a little Hght. The most popular and largely grown species is Agave americana, while its variety variegata, with green yellow-margined leaves, is even more striking. These plants in time grow to a large size, with thick, fleshy, spiny leaves 3 to 6 feet long and 6 to 9 inches wide. The crowning point of their life is reached when a tall strong stem gradually pushes i6 THE BOOK OF HARDY FLOWERS up, and by the time the immense panicle of small yellowish-green flowers opens it has reached a height of lo to 20 feet. Soon after the inflorescence dies a watch must be kept for suckers (growths from tlie base), or seeds may possibly be had. Ageratum {Floss Flower). — In Ageratum mexicanum, member of the Daisy family (Compositae), we possess a most useful bedding plant, readily propagated either from seeds sown in warmth during February and March, or by cuttings. A few of the latter are in- serted during August, kept in a heated greenhouse during winter, then in spring, February and March, when the plants are growing freely, lots of cuttings can be taken off and made to form roots in a propagating frame. They make quick progress, and by June will be good plants, 3 or 4 inches high, ready to plant out in the beds and borders. Ageratums delight in a light, rich soil in which leaf- mould has been mixed. The plants flower freely from June until October, and are only then spoilt by frosts. The typical kind, Ageratum mexicanum, grows about 2 feet in height. Under cultivation the wild Mexican plant has been wonderfully improved, and we have now a number of named sorts varying from 4 inches to 2 feet in height. Seedlings from a reliable source come true with few exceptions, though many gardeners prefer, when using Ageratums for bedding, to raise plants from cuttings. Swanley Blue, lilac-blue ; Tapis Blanc, white ; The Zoo, blue ; Princess Pauline, dwarf lilac-mauve ; Dwarf Blue Perfection, and Compactum nanum album, are all good sorts. Then from seeds one can grow Imperial Dwarf Blue, 9 inches ; Dwarf Wliite, 9 inches ; Little Blue Star, 4 inches, very dwarf and free, valuable as an edging to beds and borders. There are also the ordinary selected strains, Tall Blue and Tall Wliite, i^ to 2 feet in height. Agr\mon\a {A gnmony). — Thisisa small groupof hardy herbaceous perennials allied to the Potentilla and Geum, and belonging to the Rose family (Rosaceae). They are easily grown, thriving in ordinary garden soil. Increase is by division of the clumps from October to March, or by seeds sown on a border outside from April to June. About six species are in cultivation ; the best known are : Agrimonia Eupatoria, small yellow flowers on long slender spikes in June and July, a common plant in the Northern Hemsiphere, including Britain, useful for the wild garden and for planting by the side of a woodland walk, thrives in sun or partial shade, 2 feet ; odorata, yellow flowers on long slender spikes, native of Europe, 3 to 4 feet, usually referred to as the Sweet-scented Agrimony. AgroBiemmei {Rose Campion). — A small class of hardy perennials and annuals allied to the Lychnis ; in fact, some botanists include AGROSTIS 17 them in that family, but among growers of old-fashioned hardy plants the name Agrostemma is still used. They belong to the Pink family (Caryophyllaceae). They are easily grown, and showy border plants, thriving in common garden soil. The perennials may be increased by division during mild weather from October to March, and by seeds sown outside from April to June. Sow seeds of the annuals during March and April, where the plants are to blossom. Agrostemma Coeli-rosa (Rose of Heaven), rose, white, or purple flowers, is an annual growing about i foot high, flowering in summer, native of Levant ; coronaria, rosy-red, white, and crimson, June and August, is a favourite perennial border plant in cottage and country gardens, thriving in sun or partial shade, and often grown among hardy ferns, where self-sown seedUngs establish themselves ; the plant has silvery-white foHage and stems, and when in flower is about 2 feet high and almost as much through ; native of Southern Europe. There are several named varieties of this kind (though these can all be obtained from a packet of seeds) : for instance, alba, white ; bicolor, white, red centre ; atrosanguinea, crimson-purple. Agrostemma Flos-Jovis (Flower of Jove) has rose-pink flowers, June to September, and downy grey foliage, i^ to 2 feet ; it is perennial, and native of Switzerland. Agrostis {Cloud Grass, Spear Grass). — Interesting and elegant flowering grasses (Natural Order Gramineae), prized for cutting, and useful either green or in a dried state in vases with flowers. Agrostis laxiflora and nebulosa, 15 inches, are both European annuals and those most generally cultivated. Sow seeds outside in April where the grasses are to flower, or in patches and rows, so that when several inches high they can be lifted in small tufts and planted where required to flower in summer. The Cloud Grasses prefer a moderately light loamy soil. Ailanthus glanduiosa {Tree of Heaven). — This Chinese tree grows to a height of from 80 to 100 feet, and is well adapted for the climate of the British Isles. It thrives in a great variety of soils and posi- tions, and is attractive by reason of its long pinnate leaves and red fruits, which resemble those of the Ash. Of rapid growth, trees forty years old may be 60 feet high if growing in good loamy soil. Young trees planted in rich loam often produce leaves 4 feet in length, and it is customary to plant groups of them, and cut them to the ground each year, solely for the sake of the large leaves produced by the fresh annual shoots. Suckers, or shoots from the base, are pro- duced, and may be used for propagation, though layers and seeds in March are often preferred. A new Chinese species, Ailanthus vilmoriniana, differs from the other kind in having spiny bark, while c i8 THE BOOK OF HARDY FLOWERS its leaves are quite as decorative. Naturally-grown trees should be lightly pruned every second year whilst young, in order to keep the leading shoots free from rivals, and to check undue develop- ment of branch growth. Lower branches must be removed occa- sionally until the trunk is clear of branches to the desired height. Ailanthus which is deciduous belongs to the Natural Order Simarubaceae. AIra {Hair Grass). — Two species of Hair Grasses (Natural Order Gramineae), Aira flexuosa, i foot, and pulchella, 6 to 9 inches, are worth growing for the garden border and for cutting. Aira pulchella is very pretty as an edging for beds and borders. Both are perennials, and may be increased by division in autumn or spring, or by seeds sown outside in April. Ordinary well-drained garden soil suits these Grasses. WTien cut and dried for w^inter decoration the inflorescences are very useful. The first-named is a native of north temperate regions and the other of Southern Europe. AJuga (Bugle Flower). — A group of dwarf perennials (belonging to the Natural Order Labiatae, of which the Dead Nettle and Salvia are examples), suitable for the rock garden and as an edging to beds or borders. They are easy to cultivate, thriving in ordinary soil, and readily increased by division from October to i\Iarch. They are natives of Europe. Ajuga Brockbanki has deep blue flowers in spikes from May to August, 6 inches, makes a pretty carpet ; metallica crispa, crinkled foliage, blue flowers, effective in the rock garden, 6 inches. Reptans is the wild British plant, of which a white variety, alba, is worth a place in the rock garden ; the varieties variegata, forming a dense carpet of silvery variegated leaves, and purpurea, dark violet flowers and purple-bronze foliage, 3 to 6 inches, are used extensively for carpet bedding: Akebia. — A small family of vigorous-growing, woody climbers, belonging to the Barberry family (Berberidaceae), suitable for the open garden in the Midlands and south and for a wall farther north. They thrive in ordinary garden soil, but prefer that of a light loamy character which is well drained. Cuttings root readily in summer if inserte < A •J O A AZOLLA 55 Azolla. — This is a little water-plant allied to the Ferns and Mosses, and belonging to the Natural Order Rhizocarpeae. It floats on the water, forms roots freely on the lower side of the thin stems, and spreads rapidly as a thin moss over the surface of the water. The " fronds " are i inch to i inch long, pale green in spring, chang- ing to a reddish-purple tint in autumn. Azolla caroHniana, the species usually grown, is a native of the Southern United States. Though sometimes in sheltered ponds and water gardens the Azolla survives the winter, it is usual to place the plants in a tub, pan, or tank in the greenhouse during that season. It is only necessary to save a small quantity as the plants increase very rapidly when placed outside in May or early June in the pond or tubs with Water Lilies. Babiana — B u 1 bous plants, all natives of South Africa and belong- ing to the Iris family (Iridaceae). The flower stem reaches a height of 6 to 9 inches, the lower part being clothed with tapering, plaited leaves, more or less hairy. The blossoms, 2 inches or so across, are borne in a many - flowered raceme. They are remarkable for their distinct colours, in which various shades of metallic blue and purple are represented; other tints that also occur amongst them are lavender and yellow. As a rule, the blossoms appear in May and June. Babianas can be successfully grown out-of-doors in the warmer districts, pro- viding a suitable spot be prepared for them. The best place is a narrow border in front of a greenhouse facing south ; it should be well drained, and if the soil is heavy it must be improved by mixing in leaf -mould and silver sand. The bulbs are placed in a layer of silver and at such a depth that there is 4 inches A TYPICAL FLORIST'S VARIETY OF AURICULA 56 THE BOOK OF HARDY FLOWERS of soil above their tops. Dormant bulbs can be obtained in August, and ought to be planted as soon as possible after that time. In winter such protection as is afforded by a mound of cocoanut fibre or dried leaves is beneficial Some of the finest forms are atro-cyanea, purple, blue, and white ; Attraction, blue ; General Scott, lavender ; Hellas, yellow ; Julia, white and blue ; and rubro-cyanea, a startling combination of blue and crimson. Baccharis. — A small group of shrubs belonging to the Daisy family (Compositae). Three or four species have been introduced, notably Baccharis halimifulia, from North America ; patagonica, from the Magellanic region; and salicifolia, from the Southern United States. Baccharis patagonica, a bush 4 to 5 feet high, with small, glossy, evergreen leaves and Groundsel-like flowers, in July, is the most ornamental. Plant in loamy soil and prune once or twice a year when young to induce a bushy habit. Afterwards simply remove the old flower-heads. The other sorts may be cut back each February to within a bud or two of the base of the previous year's growths. Balm — {See Melissa.) Balm of Qilead — {See Cedronella triphylla.) Balsam.— (S^g Impatiens.) Bambusa (Natural Order Gramineae). — Includes a number of the hardy Bamboos ; they are grown under similar conditions to those recommended for Arundinaria. All the following are hardy, and are native of China and Japan : angustifolia, a dwarf Japanese kind with small leaves ; disticha, a curious, upright-growing species, about 2 feet high, with stiff branches ; palmata, a vigorous plant, 8 feet high, with leaves 8 or 9 inches long and 2 to 3 inches wide — it spreads rapidly ; tessellata, grows 3 feet high and produces larger leaves than any other hardy Bamboo — they are sometimes 13 inches long and 4 inches wide. Tender (i.e. not hardy) kinds are : arundinacea, a vigorous plant from India ; quadrangularis, notable by reason of its four-angled stems : it is a native of India, and may be grown out-of-doors in the milder parts of the British Isles ; vulgaris, a common and strong-growing kind from India. Baptisia. — North American herbaceous perennials, members of the Pea family (Leguminosae). One species, Baptisia tinctoria, is known as Wild Indigo. They grow readily, and flower in the most satisfactory manner in deep, well-drained soil in a sunny spot. Most of them bear a considerable resemblance to the Lupins, and are at their best during the months of June and July. They vary in height from 2 to 4 feet. A selection of the most desirable includes alba, white ; australis. blue ; confusa, dark blue ; and tinctoria, yellow. BARTONIA 57 All are readily increased by division in autumn, or by seeds sown when ripe on a sheltered border out-of-doors. Bartonia. — The chief kind, and the only one commonly grown, is Bartonia aurea, native of Cahfornia ; it belongs to the Natural Order Loasaceae, and is also known as Mentzelia Lindleyii. In common with all Cahfornian plants, it enjoys full exposure to the sun. The deeply-cut leaves are freely clothed with downy hairs. The plants reach a height of about i8 inches, and flower very freely, the five-petalled blossoms, which are individually nearly 2 inches across, being of rich yellow colour. This annual may be sown in the open ground towards the end of April, but a much longer period of bloom is ensured if the seeds are sown early in the month under glass, the seedlings being planted out when sufficiently advanced. BaiS\l.—{See Calamintha.) Bay Tree. — {See Laurus.) Bear Bind.— {See Calystegia.) Bear's Breech.— (S^e Acanthus.) Beech. — {See Fagus.) Beet. — {See Beta vulgaris.) Begonias for Bedding.— Begonias (Natural Order Begoniaceae) occur more or less plentifully throughout the warmer regions of the globe. The tuberous-rooted species, from which the numerous garden varieties of this section have originated, are natives of the Andean district of South America. Large numbers of tuberous Begonias are used for bedding, as well as many fibrous-rooted kinds, notably the varieties of Begonia semperflorens and some of the garden forms obtained by the crossing of this kind with others. Tuberous-rooied Begonias. — In dealing first with the tuberous- rooted varieties most suitable for bedding, it may be pointed out that large heavy flowers, which make such a striking show in the greenhouse, are not well adapted for the purpose ; owing to their weight they are liable to be broken off by strong winds or heavy rains, whereas the sturdier kinds, with small or medium-sized flowers, are not dam- aged. When seedlings are grown for bedding out we are often told to sow the seed early in the year, and the young plants will be ready for bedding out late in May or early in June. This is all very well when hot-houses and convenient appliances are at hand, but it cannot be recommended to the amateur. One-year-old tubers are by far more satisfactory for bedding out. To raise these the seed is sown in February in a temperature of 60° to 70°, using for the purpose clean, well-drained pans of light soil, such as equal parts of loam and leaf-mould, with a liberal sprinkling of sand, the top layer of 58 THE BOOK OF HARDY FLOWERS soil having been passed tlirough a fine sieve. Plunge the pan to the rim in water, so that the soil may be moistened through ; then sprinkle the seed very thinly on the soil surface. Cover with a square of glass and shade from the sun, and the young seedlings will soon make their appearance. Subsequent treatment consists in transferring the young plants to other pans as soon as they are large enough to handle, and potting off singly when further advanced. Begonias like a con- siderable amount of leaf-mould in the soil, hence the proportion above referred to for sowing the seeds in may be adhered to later on. When large enough and the weather is favourable, the young plants may be put out in prepared beds, where most of them will flower before frost sets in. A selection may then be made of those most suitable for bedding and for growing in pots another season. Tuberous Begonias should be lifted directly the frost injures the upper leaves, and laid in a shed or on the stage of a greenhouse to dry. In a few days the succulent shoots will fall away from the tubers, from which as much of the old soil is removed as can be taken off without injury CO the roots. They are then laid in snallow boxes of dry soil and stored where they will be safe from frost and yet not parched. In spring they are potted singly in 4-inch pots, and placed on a shelf in the greenhouse. They will not require much water at first, but as they grow more must, of course, be given. Wliile the above remarks refer to the raising of seedlings for bed- ding, attention may also be directed to the fact that Begonia special- ists supply selected tubers true to colour at a very cheap rate for bedding purposes. There are, in addition, some well-recognised kinds that are largely employed for bedding. These are increased by cuttings of the young shoots in spring or by division of the tubers when more than one shoot pushes up from each root. Cuttings cannot be formed until the growths are about an inch in length. They are inserted in small pots of light sandy soil placed in a closed propagating case, where, if there is slight heat, they will soon root. Care must be taken to see that they do not " damp off " ; they are liable to do this in too moist an atmosphere. If signs of decay are noticed, the light may be tilted each day for a short time. The best of the named tuberous rooted varieties generally used for bedding are : Double (all of freely branched, sturdy habit) — Argus, scarlet ; Calliope, pink ; Count ZeppeHn, orange-scarlet ; Gladiateur, crimson ; Lafayette, crimson-scarlet ; Major Hope, light rose ; Mar- quis of Stafford, deep crimson ; Miss M. Griffith, white ; Mrs. Langtry, white ; President Savoye, pale yellow ; Rev. E. Lascelles, deep yellow ; and Washington, brilliant scarlet. Single (of upright growth, with BELLIS 59 long, pointed petals) — Bertinii, orange- scarlet ; and Worthiana, vermilion. Fibrous-rooted Begonias. — The exceedingly variable Begonia sem« perflorens is, in one or other of its many varieties, largely used for bedding. The plants flower continuously throughout the season, and, what is more, the foliage of many varieties becomes of an intense crimson tint. The flowers vary in colour from white to the richest red. Some of the plants are very dwarf, and these may be depended upon to come true from seed if it is obtained from a reliable firm. Among the best varieties of this class are : Gloire de Chatelaine, pink; gracilis, deep pink ; Limmosa, scarlet ; Magnifica, dark foliage and scarlet flowers ; Snow Queen, white ; Triomphe de Lorraine, crimson leaves and flowers ; and Vernon, like the last, but very dwarf. When the Begonias of this section are raised from seed this should be sown early in the year in order to have plants available for bedding-out time. The directions for sowing the seed of the tuberous varieties apply to these. Another mode of increase for the very dwarf kinds is to lift them early in autumn before the frost has done any damage, divide them as one would a herbaceous plant, and put the pieces in small pots of soil. In a hght position in a greenhouse, where a temperature of 45° to 55° is maintained, they will pass the winter safely, and form good plants by spring. The taller-growing varieties of the same section are increased by cuttings, which, if taken early in August, soon root in sandy soil in a closed and shaded frame. If potted singly as soon as they are well rooted they will pass the winter safely in the greenhouse, under the conditions just described. There are other varieties of fibrous-rooted Begonias of larger growth than those previously mentioned, and at the same time of great value for summer bedding. Chief among them are Ascotensis, pink ; Cor- beille de Feu, bright red ; Knowsleyana, silvery blush, and Weltoni- ensis, deep pink. Belladonna. — {See Atropa.) Belladonna Lily. — {See Amaryllis Belladonna.) Bellflower. — {See Campanula.) Bel I is (Daisy). — Native of Europe. The Daisy (Natural Order Compositae) is familiar to everyone, and all have a soft spot in their heart for the " wee modest crimson-tipped flower " of the poet Burns, even though it occur in well-kept lawns. Apart from the common kind there is quite a long list of garden varieties, which are largely grown for spring bedding. Some have very fine flowers, and all bloom continuously over a long period. So floriferous are they that it is often a difficult matter to steel one's heart to remove them when 6o THE BOOK OF HARDY FLOWERS it is necessary to make way for the summer bedding plants. When there is a reserve border set aside for the reception of Daisies and similar plants during the summer, it should, if possible, be so situated that it does not get dry at any time, as not only the Daisy, but the Polyanthus, witli which it is often associated in spring beds, resents such conditions A well-tilled soil, not necessarily very rich, is just the place for Daisies. \Vlien they are lifted from the spring beds all the flowers should be cut off, and the plants divided to the extent that may be desired. Then they are planted in rows, taking care that the soil is made firm around each plant. Should the weather be dry the plants benefit by an immediate soaking of water. During summer no attention is necessary beyond an occasional hoeing be- tween the rows in order to keep down weeds and loosen the surface soil. A good selection of varieties is as follows : AHce, salmon-pink ; Dresden China, delicate pink ; Monstrosum, white and red, mottled, very large ; Rob Roy, quilled flowers, intense red ; Snowdrift, white, quilled ; and Venus, double white. Beside these there is a singular form known to botanists as Bellis perennis monstrosum, and popu- larly termed the Hen and Chickens Daisy. In this variety the central flower is surrounded by smaller ones ; it is a curiosity, but for beauty does not compare with the others. In addition to the common Daisy and its varieties there is the Blue Daisy of Morocco (Belhs rotundifoha caerulescens) : this has round leaves with particularly long slender stalks, while the flower- heads much resemble those of the common Daisy, except that the florets are fewer and often broader, while the colour is a pleasing shade of pale blue. This Daisy is much less hardy than its English representative, and requires a warm, well-drained part of the rock- work or some similar position. Bel Mum (False Daisy). — This, which is native of the Mediterranean region, is nearly related to the Daisy ; indeed, it is only separated therefrom by slight botanical features, and belongs to the same family (Compositae). There are but three species. Bellium bellidioides forms a tuft of spathulate leaves, and makes its way by means of creeping stolons. The flower-heads, which are borne on slender stems about 4 inches in height, are white, and produced during the summer months. Belhum crassifolium has thick obovate leaves of a some- what downy nature ; the Daisy-like flower heads are of whitish yellow colour. Bellium minutum is quite, a miniature plant with whitish flowers ; it needs a well-drained position on a sunny part of the rockery ; indeed, all the False Daisies must be regarded as rockwork plants. I BERBERIDOPSIS CORALLINA 6i Bent Grass — {See Agrostis.) Berberidopsis corallina is a Chilian plant belonging to the Barberry family (Berberidaceae). Of chmbing habit, its long, slender woody branches are clothed with dark evergreen leaves, which have spiny margins and somewhat resemble those of the Mahonia. The coral-red flowers are borne during late spring in large axillary pendent clusters. Al- though somewhat ten- der, it gives excellent results if planted against a west wall in the South of England, and is suitable for greenhouse cultivation. Warm and well-drained loamy soil will do, but if a little peat can be added at planting time it will be appreciated. Propagation is by seeds, cuttings, or layers. Pruning is confined to shortening the branches after the flowers are over in order to keep the plant within bounds. Berberis. — This is an important genus (Natural Order Berberi- daceae), composed largely of hardy shrubs, either evergreen or decidu- ous. They are widely distributed through Europe, the Himalaya, China, Japan, North America, the southern part of South America, etc. One species, Berberis vulgaris, is wild in the British Isles. Recent explorations in China have added many new kinds to the previously long list of those in cultivation, and Berberis may now be considered one of the most important groups of hardy shrubs. The majority are good flowering plants, whilst some are conspicuous again in autumn when covered with showy fruit. The fruit is wholesome, and can be A NEW BARBERRY (Berberis Wilsonae) 62 THE BOOK OF HARDY FLOWERS made into jellj^ ; in some countries it is in regular use. As a rule, cultivation offers no difficulties, for, given ordinary good garden soil, they grow well and give little trouble. Except when grown for some special purpose, they require no regular pruning, and may be left many years without thinning. Berberis Aquifolium, however, a plant often known as Mahonia, is excellent for clothing bare banks either in partial shade or full sun, and it is necessary to prune it severely to keep it to the desired height. This pruning may be done any time between April and July. The best plan is to remove the longer and wilder shoots each year. Propagation of many kinds is by seeds, but a few- — notably Berberis stenophylla — are increased by means of cuttings. Semi-ripe shoots, 4 inches long, should be taken in August and inserted in sandy soil in a closed but cold frame. In this position they must remain until the following April, when roots will have formed. The young plants may then be planted in nursery borders. The chief kinds are : Aquifolium (Mahonia), a Western North American shrub, 3 to 8 feet high, with large, evergreen, pinnate leaves and inflorescences of yellow flowers in spring, which are followed by deep purple fruits, covered by a dense bloom, in autumn ; aristata is a very vigorous shrub from the Himalaya, it grows from 12 to 18 feet high, and bears yellow flowers in May and purple fruits later ; buxi- foha is a charming kind from Chili, of semi-evergreen habit, it bears small Box-like leaves, and sohtary, fragrant, golden blossoms from the leaf axils in April ; candidula, a new evergreen from China, is of low, compact habit, and is excellent for the rock garden or border ; concinna, a Himalayan plant, conspicuous by reason of the silvery undersurface of the leaves and large solitary yellow flowers, followed by large, oval, scarlet fruits. Darwinii, an evergreen Chilian plant, one of the best of all, sometimes grows 12 to 15 feet high and as far through, but is usually much smaller ; the racemes of rich orange, or sometimes orange-scarlet flowers, are very attractive amongst the dark leaves in April and May, Japonica belongs to the Mahonia set, and has very long leathery leaves made up of about eleven leaflets, the golden flowers are borne in large heads in March, a very difficult shrub to transplant ; Lycium is a vigorous shrub from the Himalaya, it grows 12 to 15 feet high and as far through ; semicaulialata is a new Chinese species, with small deciduous leaves, it is of elegant habit, and bears rather small yellow flowers, followed by a profusion of small coral-red fruits which remain through the greater part of winter. Berberis stenophylla is perhaps the most generally useful of all shrubs. Of hybrid origin, it claims two Chilian species (Darwinii and BERCHEMIA VOLUBILIS 63 empetrifolia) as parents ; it forms a shapely bush 8 to lo feet high and 12 feet in diameter without pruning. During April or early May the golden, fragrant flowers are borne in such profusion as quite to hide the narrow evergreen leaves. It may be used as a specimen bush, group, or hedge. Berberis Thunbergii is a Japanese kind renowned for the brilliant colour assumed b}^ the leaves previous to falling ; vulgaris is the Common Barberry of our hedgerows, it is worth growing both for its yellow flowers and scarlet fruits ; Wilsonae is a new Chinese species of graceful outline, it is grown both for its golden flowers and scarlet fruit. Berchemia volubilis belongs to the order Rhamnaceae, and is a native of the Southern United States, where it is known under the name of Supple Jack. Of rambhng growth, it requires to be planted near a trellis or low fence over which it may ramble at will, for no pruning is necessary. Loamy soil suits it, and propagation is by seeds. The flowers, greenish and opening in summer, are not con- spicuous ; they are followed by violet- coloured berries. This is not a very important plant. Bessera. — This genus consists of but one species, namely Bessera elegans, a charming little bulbous plant with bell-shaped scarlet flowers borne during the summer months. It is native of Mexico, and belongs to the Lily family (Liliaceae). In shade of colour the blossoms vary somewhat, hence other names have been bestowed upon the most distinct. The leaves are long, narrow, and grass-hke, while the slender flower scape reaches a height of i8 inches or even more. For the successful cultivation of this delightful little bulb a warm and sheltered spot and a well-drained soil are necessary ; indeed, the cultural directions given for Babiana apply. Beta vulgaris. — Most of the forms of Beet, which belong to the Natural Order Chenopodiaceae and are native of Europe, are grown as vegetables or for the extraction of sugar from the roots. Some of those with richly coloured leaves are, however, used for summer bedding ; especially useful is that known as the Brazilian or Chilian Beet, a strong-growing kind, with small roots and with leaves of different tints of red and orange, with scarlet midrib. Dell's Crimson, one of the best for eating, is of dwarf growth, with rich crimson leaves ; it is also used for bedding. In order to display the foliage at its best the ground should be well dug and manured. The seed may be sown where the plants are to remain, or in a reserve bed early in April, the young plants removed into their permanent quarters in early June. Transplanting needs to be carefully carried out. Betony.— (5^(j Stachys Betonica.) 64 THE BOOK OF HARDY FLOWERS Betula (Birch). — This is an important p:roup, composed chiefly of hardy trees with a few shrubs, natives of Europe, Asia from the Himalaya northwards, and North America, and belonging to the Natural Order Cupuliferac. They thrive on poor land, and some of them are well adapted for planting on exposed hillsides and on bare sand near the coast. Two species, vernicosa and pubescens, are found wild in the British Isles, the foiTner in dry and the latter on moist land. Both seed freely, and seedlings spring up spontaneously whenever the seed is blown on to suitable ground. Betula verrucosa is the commoner tree, and large quantities of its wood are used for cotton reels, shuttles, furniture, clog soles, etc. The wood grown in the British Isles is less useful than that from North Europe, more especially that which is grown in Finland. Large quantities of American Birch are also imported into British markets. This is used largely for furniture, spinning shuttles and for cutting into veneer to glue together for use as ply- wood. The Birches may be grown in almost any garden without trouble, and some of the kinds, particularly those with pendent branches, make handsome lawn trees. In some instances the bark is white, in others brown or yellow- ish, and few trees are so beautiful during winter. Propagation of the species is by seeds and of the varieties by grafting. Wliilst the trees are young they should be pruned lightly each year in order to keep the leaders clear of rival shoots and the trees shapely. In later life no pruning is required or desirable unless branches are broken by wind. The most important are : verrucosa (Silver Birch), a handsome tree for light, dry land ; the weeping varieties, pendula and pendula Youngi, are very graceful and desirable trees ; pubescens may be distinguished by its hairy branches and leaves (N.B. — these two sorts are forms of Betula alba, commonly known as the Silver Birch). Davurica is a very hardy tree from Nortli Asia and North America ; lenta, the Cherry Birch of North America, important there for its timber, is grown here for decorative purposes ; lutea. the Yellow Birch of North America, forms a handsome tree ; nigra is a handsome kind from North America, its rough, reddish-brown bark is attractive ; Maximowiczii is a particularly vigorous, upright-growing tree from Japan ; papyrifera, the Paper Birch or Canoe Birch of North America, forms a shapely tree of attractive outHne ; the timber is useful and the tree very hardy. Bidens (Bur Marigold). — The members of this group, which belong to the Daisy family (Compositae), and are native of north temperate countries, are of no special decorative value, unless it BIGELOVIA GRAVEOLENS 65 be Bidens atrosanguinea, which is classed by the latest botanical authorities with the Dahlias under the name of Dahlia Zimapanii. This, which forms a tuberous root after the manner of a Dahlia, should be given the same treatment, the roots being protected from frost during winter. The flowers of Bidens atrosanguinea are remark- able for their deep blackish -crimson tint. As above stated, the other members of this group are of little value from a decorative standpoint. They reach a height of 2 to 6 feet, or even more, and the flower-heads are for the most part of a white or yellow tint. Bigelovia graveolens is a loose-growing shrub from Western North America suitable for planting against a wall in the South of England. It belongs to the Daisy family (Compositae), and on a south wall attains a height of 10 or 12 feet. The leaves are long, narrow, and grass-like, and the flowers individually small. They are yellowish in colour and produced in conspicuous heads during late summer. Plant in a sunny position in warm, loamy soil ; pro- pagate by seeds, and shorten the branches back to the wall during winter. This shrub is known also as Chrysocoma graveolens and Linosyris graveolens. Bignonia. — Though there are many sorts of Bignonia, the only species which can be looked upon as hardy is Bignonia capreolata (Natural Order Bignoniaceae), the Cross Vine of the Southern United States. Even this is not suited to all localities, and is seen at its best only in the milder parts of the country. It is a free-growing climber of a shrubby character, that attaches itself to any support by small but powerful tendrils. On the south front of a dwelling- house its requirements are well met, as there it receives a certain amount of protection during severe weather, while the shoots are well ripened in autumn. The leaves are, as a rule, divided into a couple of leaflets, broadly ovate in shape and of a dark green colour. The flowers, which are, as in many other of the Bignonias, funnel-shaped, are borne during the summer months. When this Bignonia is trained to a wall the only pruning required is to cut off any old and exhausted shoots early in spring before growth recommences. Bindweed. — {See Convolvulus.) Birch. — {See Betula.) Bird Cherry. — {See Prunus.) Bitter Cress. — {See Cardamine.) Bitter Sweet. — {See Solanum Dulcamara.) Bitter Vetch. — {See Orobus.) Bladder Fern. — {See Cystopteris.) F 66 THE BOOK OF HARDY FLOWERS Btechnum Spicant. {Hard Fern). — Known also as Blechnuni boroale ami Lomaria Spicant. This distinct fern (Natural Order Filices) is found wild in many parts of this country, and is also a native of nearly all portions of the globe. It is an evergreen, and its dwarf and sturdy habit, together with the deep green colour of the barren fronds, renders it useful for the outdoor rockery, where in a moist shady nook it is bright and green all the winter, when so many hardy ferns are dormant. It is not at all particular as to soil, providing it be free from lime, for this fern resents lime in any form. The varieties of the Hard Fern are almost innumerable, but the majority of them are less ornamental than a good form of the typical plant. All the other species of Blechnum are tender, and are therefore unfitted for the outdoor garden. Blessed Thistle. — {See Carbenia benedicta.) Bletia.— The tender plants of this genus, which belongs to the Orchid family (Orchidaceae), are numerous, but the only hardy one is Bletia hyacinthina, a native of China. It forms a tuft of pleasing green lanceolate leaves, i foot or little more in height, and the flower spike, which well overtops the foliage, bears a raceme of bright purple blossoms early in summer. This Bletia may be grown in pots, but it is seen to far greater advantage in a bed made up of peat and sand, and so arranged that while it is effectually drained the soil can be kept moist whenever required. It must be included in any selection of hardy Orchids, however choice, for it is of refined appearance, distinct from any other, and its successful cultivation does not present any special difficulties. Protection afforded by a few leaves around the crowns during winter is beneficial. Bloomeria. — Two pretty flowering bulbs, native of California and members of the Lily family (Liliaceae), compose this group ; they are usually at their best about midsummer. The best known and most readily obtained from dealers is Bloomeria aurea, which grows about i foot high and bears a spreading, many-flowered bunch of golden-yellow flowers about i inch across. The second kind, Bloomeria Clevelandii, much resembles the preceding, but the flowers are smaller and the stem more slender. The Bloomerias need a light, well-drained soil in a sunny spot ; indeed, the treatment recommended for Babiana suits them. Bluebell. — {See Campanula rotundifolia and Scilla.) Bocconla (Plume Poppy). — Ornamental herbaceous plants, natives of China and Japan, and belonging to the Poppy family (Papaveraceae). Owing to their striking fohage they are very handsome when occupy- ing an isolated position or in a bed to themselves. In good soil the roots spread quickly, and the stems, which reach a height of 6 to < Q O u < Z o u o o w >^ a, a. o a. ID W a: BOLTON I A 67 10 feet, are clothed with large, glaucous, Poppy-like leaves, and terminated by plumes of blossoms of a creamy tint. The Bocconias are readily increased by seed or by division. The kinds are cordata (also known as japonica), the oldest and most generally grown one ; Geraldii purpurea, with very large, handsome foliage and panicles of white flowers, followed by distinct brown seed pods ; and micro- phylla, taller than the others, with small white flowers, reddish in the bud state. Though quite hardy, the Bocconias are often used for subtropical bedding, for they harmonise well with the various tender plants employed for the same purpose, and bloom in July. Boltonia (False Slarwort). — The Boltonias, which are natives of North America, are a class of Aster-hke plants, members of the Daisy fcimily (Compositae) ; indeed, they are often confounded with the Michaelmas Daisies. They will grow freely in any good garden soil, and are readily increased by division in autumn or spring. Like the perennial Asters, they soon become exhausted if allowed to remain in one spot for some time ; hence every second year the plants should be divided and replanted. In replanting, the shoots in the centre of the plant should not be chosen for the purpose, as they are naturally weak, by far the best being those from the outside of the clump. They reach a height of 4 to 5 feet. The principal kinds are : asteroides, with white or pale pinkish flowers (also known as glastifoha) ; decurrens, pink ; and latisquama, white. Like the Michaelmas Daisies, sprays of these Boltonias are very useful in a cut state, as they last well in water ; the plants bloom in July and August. Bomarea.— A fairly extensive group of plants, nearly related to Alstroemeria, from which they are mainly distinguished by their climbing habit. They belong to the Amaryllis family (Amaryllidaceae), and are principally natives of South America, in some parts of which they are widely distributed. Generally speaking, they must be regarded as greenhouse plants, but two species are hardy under par- ticularly favourable conditions, such as a sheltered position in the warmer parts of the country or in a well-drained border in front of the greenhouse. They are Bomarea acutifolia with flowers in early summer of an orange colour ; and Bomarea Salsilla, which is even hardier. This is a slender climber, and produces in June small purple flowers about | inch long, and disposed in loose clusters. The interior of the flower has a couple of darker spots at the base, and the segments are slightly tipped with green. Like its ally the Alstroemeria, Bomarea, when once established, should be allowed to remain undis- turbed for some years. Borage. — {See Borago.) 68 THE BOOK OF HARDY FLOWERS Borago {Borage). — From the cliarming blue tint of their blossoms, the different kinds of Borage are remarkably attractive, and one, the Common Borage (Borago officinalis), is largely used as a flavour- ing in many prepared drinks. They are native of Southern Europe and Asia Minor, and belong to the Natural Order Boraginaceae. There are white and purple varieties of the common kind. The flowers of the Borage are borne in drooping panicles, and when in full bloom it is decidedly attractive, but it is seldom regarded from that stand- point, being chiefly grown for its economic value. It is readily in- creased either by division or seeds, and will grow freely in ordinary garden soil. A second species, Borago laxiflora, with drooping clusters of blue flowers, is ornamental, and blooms from June to the end of the summer ; it reaches a height of 12 to 18 inches, and it is equally at home in the rock garden, herbaceous border, or wall garden. This is the only Borage commonly grown in the flower garden. Botrychium {Moon Worl). — The only hardy member of this group of Ferns (Natural Order Filices) is our British Moon Wort (Botrychium Lunaria). It belongs to what are termed Flowering Ferns, of which the Royal Fern (Osmunda regalis) is a well-known example. In the Flowering Ferns the spores, instead of being arranged on the undersides of the fronds, are disposed in a separate branching spike, which usually overtops the sterile fronds. This Botrychium is deciduous (leaf losing), and forms altogether a somewhat thin plant ; the sterile fronds are pinnate, each consisting of about a dozen fan-shaped pinnae. The fertile spike reaches a height of about 12 inches, and is much branched. In a state of nature this Fern is found in the temperate and northern regions of both hemi- spheres ; it is not at all amenable to cultivation, chief success being obtained when it is planted in a peaty bed and kept moist at all seasons. Bougainvillea. — At some seasons of the year the Bougainvilleas, which are native of South America, and belong to the Natural Order Nyctaginaceae, require the temperature of a warm greenhouse, but they do well outside during the summer months, and are much used for summer bedding. They are generally used in mixed beds of flowering plants which are now very popular, and in a sunny spot they flower continuously from early summer until autumn. By far the best for the purpose are Bougainvillea glabra and its variety Sanderiana, the last-named having richer coloured bracts. The real flowers of the Bougainvillea, borne in small clusters, are not at all showy ; each cluster, however, is surrounded by leaf-like bracts, which are of rich colour, usually of some shade of purple. In order to have them at their best for bedding purposes, the plants need BOUSSINGAULTIA 69 careful attention in spring. They pass the winter in a partially dormant state, during which time they are kept in a greenhouse, where a temperature of 50° to 60° is maintained ; little water is given, the object being to ensure a period of partial rest. About the end of February or early in March all straggling shoots should be shortened in order to keep the plants shapely, and any old and exhausted shoots cut out. If the plants need repotting it must be done at once, using for the purpose a mixture of loam, peat and sand. WTiether repotted or not, the plants will require more water, a higher temperature, and a moister atmosphere when growth begins. The plants must be well exposed to light and air, so that they do not suffer when taken out-of-doors. Generally speaking, the middle of June is a good time to put them outside. The white-flowered Solanum jasminoides and the deep orange- coloured Browallia (Streptosolen) Jamesonii are often associated with Bougainvillea. The Browallia should not be planted out in the beds ; it is far more satisfactory when the pots are plunged in the soil. Boussingaultia. — This group (which belongs to the Natural Order Chenopodiaceae) consists of a few plants, natives of South America, of which only one, Boussingaultia baselloides, is in cultivation in this country, where it is sometimes known as the Madeira Vine. It is a rapid-growing climber of a herbaceous character, with tuberous roots, the reddish stems being clothed with thick, dark green cordate leaves. The flowers are whitish, and appear in autumn from the upper parts of the shoots ; they are not particularly showy, but have a somewhat Hawthorn-like fragrance. Where a rapid-growing climber, that depends for its beauty upon its foliage alone, is required, the Boussingaultia can be recommended. It succeeds best in light soil and a warm position. A curious feature is the presence of tubercules on the stems, from which young plants can be raised ; the tubercules are exceedingly brittle. Another species recognised by botanists is cordata, which is a good deal similar to the preceding, but the leaves are more pronouncedly heart-shape. Box. — {See Buxus.) Box Edging [Dwarf Box). — This is a miniature form of the common Box, which is a good deal used as an edging to walks, flower beds, etc. It has long been employed in this way, the practice having been, in the first place, copied from the Dutch, in whose formal gardens it figured largely. Edgings of Box are not now used to the same extent as they once were, for a more natural style of gardening prevails, and, further, the Box often affords a resting-place for various garden pests. There is, however, a good deal to be said in favour of well- 70 THE BOOK OF HARDY FLOWERS kept Box edging in the formal garden, but wlien neglected it is far from pleasing. What is termed the dwarf Dutch Box is the best for the purpose, and planting may be done from October to March, but unless unavoidable it should not be carried out in the depth of winter. If a piece of old Box edging, that has been kept regularly trinuned, is taken up, it will be found that it consists of a dense mass of shoots, all or nearly all of which have formed roots of their own. For planting purposes these are pulled apart, and each bit trimmed into shape by shortening any straggling roots and tops. If the plant- ing is done by the side of a gravel path, the gravel should be pulled back for a little distance in order to allow some good soil to be mixed in. The Box loves a chalky soil, so if the ground is stiff and clayey, a little powdered chalk will be beneficial. If, on the other hand, the natural soil is poor and thin, a loamy compost enriched by manure should be added. In planting Box edging a shallow trench must be taken out, the ground being made quite level and firm on the side against which the Box is to be placed. The plants being put into position so that the tops are from 2 to 3 inches above the ground, the soil is filleil in and trodden down firmly. Care is necessary to put the plants uniformly deep, otherwise the line will not be even. It may be necessary to trim off a shoot here and there in order to impart a neat finish to the edging. However carefully it may be planted, even the best Box edging will in time get unsightly unless it is regularly trimmed. The month of April is the best time for carrying out this work, or it may be done again in August. Brachycome iberidifolia {Sioan River Daisy). — A pretty half- hardy annual (Natural Order Compositae) that was introduced from the Swan River district of Western Australia about sev^enty years ago. It is a freely-branched yet slender-growing plant, that reaches a height of 6 to 9 inches ; the flowers, which are a good deal like those of a Star Cineraria, are a pleasing shade of blue, there being also white and pink forms. It prefers a light, rather rich soil and a sunny spot, under which conditions it will flower thro\ighout the greater part of the summer. The seed may be sown outside in April unless in very cold districts, when the young plants may be raised under glass and planted out in May. Bracken.— (Sec Pteris Aquilina.) Bravoa. — The only Bravoa in general cultivation is geminiflora. It is native of Mexico and belongs to the Amaryllis family (Amaryl- lidaceae). It is a bulbous plant, that produces long, narrow leaves, while the flower stem, which reaches a height of 2 feet or so, bears on its upper portion drooping tubular orange-red flowers. It usually PRRKNMmI cornklowkk (CENTAUREA MONTANA) MEADOW SAMRON (COI.CHICUM AUTUMNALE) A SHOWY BINDWEED (CONVOLVULUS CNEORUM) HARDY CRINUM iCRINUM CAPENSE) BRIZA 71 blooms ill July. This Hravoa is hardy uikUm- iiarlicularly favour- able coiulilions, and tlie troatment roconnnendod for liabiana is suitable. Briza {Quaking or Tolkr Gr(iss).~OY\vM\\v\\{:\\ liardy Grasses (Natural Order Gramineae), some of whieh arc natives of this country. They arc of annual duration only and grow freely in any good garden soil. In clumps or masses, as many annuals are grown, Brizas have a very pretty effect in the garden, while for associating with cut flowers they are invaluable. What is more, if the spikes are cut a little before the seeds are quite ripe and hung up to dry, they are useful for various decorative purposes during the winter montlis. The seed may be sown in the open ground in spring. The best are Briza maxima, media, and minor, the names referring to the size of the ilowor spikelcts. Brodiaea {Missouri Hyacinth).— T\\c Brodiacas are slender bulb- ous i^lants, natives of California and North-West America, and belong to the Lily family (Liliaceae). All require a warm, well-drained sunny spot, and it is useless to attempt to grow them in cold, heavy soil. While their requirements are about the same, they differ widely from each other in general, some sending up tall spikes while others are quite dwarf. They bloom, as a rule, during June and July. A well- prepared and well-drained border, if possible under a sunny wall, should be prepared for Brodiaea, the bulbs being buried to a depth of 3 to 4 inches, and surrounded with silver sand. Planting is done in autumn as soon as well-ripened bulbs are obtainable. A selection of llie best includes Bridgesii, purplish-blue ; Candida, light porcelain blue ; capitata, deep violet ; coccinea (Vegetable Fire Cracker of California), blood-red below, the apex of the tube and segments yellow- ish-green ; congesta, blue, tall grower ; Hendersonii, bright yellow ; Howellii, lilac blue ; ixioides, yellow, strij^ed purple ; lactea, white ; nudtillora, deep blue; Orcuttii, lavender ;j Purdyii, blue; and volu- bilis. rose. The last -named is remarkable, inasmuch as the flower- stem entwines itself around any support, and will often reach a height of several feet. Bromus {Broom Grass). — An extensive group of Grasses (Natural Order Gramineae), most of which are natives of the Northern Hemi- sphere. While many of them are of considerable economic value, their ornamental qualities do not, as a rule, rank high. F<'^r and away the most effective from a decorative standpoint is Bromus brizacformis ; it is a native of the Caucasus, and forms a tuft about 2 feet in height. In general appearance it is suggestive of Briza maxima, but is of looser and more elegant growth. Like the Briza, 72 THE BOOK OF HARDY FLOWERS it is useful for associating with cut flowers, and when dried lasts for a long time. Broom. — (Sec Cytisus.) Broom, Spanish — {See Spartium.) Broussonetia papyrifera is the principal species in this group or genus of the Nettle family (Urticaceae). It is closely allied to the Mulberry, and is a native of China, Japan, and other Eastern countries. Its large, ornamental, hairy leaves vary in outline, and are usually deeply lobed, sometimes being divided into numerous fine segments. In this country it forms a large-spreading bush 20 feet or more high, and sometimes a small tree. In China it attains the dimensions of a medium-sized tree, but is often grown as a coppice plant or the young branches, which are used in the manufacture of paper, and the fibre for coarse cloth. Plant in well-drained loamy soil, propa- gate from cuttings of ripened growths out-of-doors, and cut out dead shoots in summer, shortening any wild branches at the same time. By cutting plants to the ground each year in February, annual stems, bearing large leaves, are produced. The variety laciniata has finely- cut leaves and macrophylla bears very large leaves. Browallia. — The Browallias are all natives of South America,' and belong to the Potato family (Solanaceae). They are not very numerous, but some of them are much used for bedding out during the summer months. The best are Browallia elata, popu- larly termed the Forget-me-not of the Andes ; this forms an upright, much branched plant, from 15 to 18 inches high, and bears during summer a profusion of pale blue flowers ; it is cdso known as Browallia demissa. It is best raised from seeds sown in warmth in spring. A kind widely removed from the rest is Browallia Jamesoni, more frequently met with under the name of Streptosolen. It is altogether a larger grower than the others, and plants from 4 to 6 feet in height, crowded with bright orange-red blossoms, form a striking feature in mixed beds of flowers. The purple flowered Browallia speciosa major, a shrubby kind from 18 inches to 2 feet in height, flowers con- tinuously throughout the season ; it is much appreciated for green- house decoration as well as for summer bedding. The last to mention is Browallia viscosa, of which the blossoms, much smaller than those of speciosa major, are deep blue, with conspicuous white eye ; it is dwarfer and more compact than the preceding, but equally floriferous. The Browallias (except elata) need to be wintered in a greenhouse safe from frost, and at that season kept moderately dry. With the return of ?pring more water may be given, when they will start into growth. If young shoots are taken as cuttings they strike root as BRUCKENTHALIA SPICULIFOLIA 73 readily as a Fuchsia, and if grown in the greenhouse will be ready for bedding out in early summer. Older plants, however, make the best display when bedded out. Seeds of speciosa major and viscosa are sometimes obtainable, and from these young plants can be readily raised if treated as recommended for elata. Bruckenthalia spiculifolia, a pretty little Heath-like shrub belonging to the Heather family (Ericaceae), and native of Eastern Europe and Asia Minor. Mature plants are from 3 to 6 inches high and form dense tufts of rich green leaves about the size of those of the Common Heather. The upright inflorescences are in the form of short, dense heads well above the foHage, the flowers being white or white tinged with pink. They are produced in May. Moist, peaty soil, or light loam free from lime, suits, whilst propagation is by cuttings placed in sandy soil under a handlight in August, or by layers. Prun- ing is confined to the removal of the old flower-heads. It may be planted in the rockery or in beds with Heaths. Bryanthus. — ^This is a small but ornamental genus of Heath-like shrubs (Naturd Order Ericaceae) which require somewhat similar treatment to Erica, but must not be planted in ground subject to drought. They may be placed in the rock garden or in beds, but it is well to select a position shaded from the midday sun. Peaty soil or light loam free from lime is suitable, and pruning is hmited to the removal of the faded flower heads. Increase is by seeds, cuttings, or layers, the first and last being the easiest methods. Bryanthus Breweri and empetriformis are natives of the mountains of Western North America from British Columbia to Southern California ; they grow a few inches high and bear reddish flowers in May. Bryan- thus taxifolius is widely distributed through the alpine regions of the Northern Hemisphere ; its flowers may be red or bluish in colour, and it grows from 3 to 9 inches high, Bryanthus erectus is really a hybrid between Bryanthus empetriformis and Rhodothamnus Chamae- cistus ; growing about 6 inches high, it bears showy reddish flowers, but is very rare. Bryonia (Bryony). — The only hardy kind is our British Bryonia dioica, known also as the Devil's Turnip. It belongs to the Gourd family (Cucurbitaceae). It is a tuberous-rooted perennial, and sends up strong-growing shoots of annual duration, which are clothed with five-lobed leaves. When rambling over a fence or arbour it is decidedly ornamental, especially as the whitish flowers are succeeded by berries, which, when ripe, are bright red. This Bryonia will grow freely in almost any soil. Bryony. — {See Bryonia.) 74 THE BOOK OF HARDY FLOWERS Buckbean.— (5^5 Menyanthes.) Buckthorn, Sea.— (5^^ Hippophae.) Buddleia. — Vigorous shrubs or small trees (Natural Order Loganiaceae) from the Himalaya, China, Chili and Peru. With one exception the flowers are produced in racemes. In the case of Buddleia globosa, however, they are in globular heads. All thrive in loamy soil, and several are available for general cultivation, others being hardy only in the warmer counties. Propagation is usually carried on by means of cuttings, although seeds, which are produced in abund- ance, may also be sown. Pruning is referred to in the following notes. Buddleia Colvilei, a native of Sikkim, attains tree-like pro- portions in its native country, and grows quite well against walls in the milder parts of this country, where its handsome tubular flowers, each I inch or more in diameter and red or rose in colour, are pro- duced in long racemes in summer. Cut back the shoots after flow^ering. Buddleia globosa is an evergreen from Chili and Peru with globular heads of small golden flowers, which are very fragrant ; it is quite hardy ; no pruning is necessary except to keep the bushes shapely. Buddleia variabilis is a very variable plant from China, growing at least 10 feet high and bearing racemes of rosy-lilac flowers from July onwards. It is, however, surpassed in beauty and value by its varieties Veitchiana and magnifica, comparatively new kinds with racemes or branched panicles of flowers up to i^ or 2 feet in length. Both are excellent shrubs, suitable for general cultivation. They must be given rich, loamy soil and be pruned back to within i or 2 inches of the base of the previous season's growth each spring. The flowers are very popular with bees. Buddleia salicifolia is a handsome kind, with long and graceful racemes of fragrant white flowers, suitable for outdoor planting in the milder counties and for the greenhouse elsewhere. Prune hard after flowering. Buddleia oflicinalis is a new Chinese plant, rather tender, and usually grown under glass ; its rosy-lilac flowers are borne in winter. Prune hard after flowering. Bugbane. — (See Cimicifuga.) Bugle. — {See Ajuga.) Bulbocodium vernum (Spring Meadow Saffron). — A pretty little bulbous plant, much resembling a Crocus, from which it differs in minor botanical features. It is known also as Bulbocodium rutheni- cum, and belongs to the Lily family (Liliaceae). It grows to a height of 4 to 6 inches, and bears rosy-purple flowers quite early in spring. This Bulbocodium is a native of Spain, and succeeds under much the ROCK GARDEN IN A HOLLOW BUPHTHALMUM 75 same conditions as a Crocus, the bulbs being planted about 2 inches deep. It is prolific in offsets ; hence the bulbs should be occasion- ally lifted and replanted in July or August. Slugs are particularly fond of the young shoots, and these pests must be guarded against. Bulrush. — {See Typha.) Buphthalmum {Ox Eye). — Showy perennials, members of the Daisy family (Compositae), that will thrive in ordinary garden soil, and may be readily increased by division, carried out in autumn. They are natives of Central and Southern Europe. The chief kinds are : salicifolium, bearing large, solitary, and bright yellow flowers in summer, 2 feet ; speciosum (also known as cordifoHum, and Telekia speciosissima) is a much stronger plant, for it grows from 5 to 6 feet high. The large leaves are thickly clothed with hairs, and the yellow flower-heads have a striking appearance during the latter part of summer. The Buphthalmums are particularly adapted for the wild or semi-wild portions of the garden ; they are rather too coarse for the border proper. Bupleurum {Hare's £"flr).— Plants belonging to the Natural Order Umbelliferae, and for the most part of little interest or beauty. Some are annuals, others are perennials, while one at least is a shrub. This is Bupleurum fruticosum, native of Spain. It forms a much-branched bush from 3 to 6 feet in height, clothed with oblong, glaucous leaves that persist during winter ; the yellow flowers, in small umbels, appear late in summer, but do not add much to the beauty of the plant, of which the most notable feature is the grey-blue foliage.- This shrub is rather apt to get bare at the base, and may be cut back hard in April. Cuttings taken in August, and placed in a frame kept closed and shaded, soon root, or they may be taken in October and inserted in a sheltered border out-of-doors. There are many other species, but this is practically the only one worth growing. Bupleurum fruticosum is singular amongst hardy shrubs as being the only one belonging to the Natural Order Umbelliferae that can be grown out-of-doors. It is native of the Mediterranean region, and may be grown as a bush in the south-west and against a wall elsewhere ; its glaucous-green, oblong leaves are ever- green, and the yellowish flowers in fair-sized umbels or flatfish bunches appear in August. Increase may be by seeds ; plant in loamy soil and spring meadow saffron 76 THE BOOK OF HARDY FLOWERS prune in spring to keep the plants shapely and within bounds. The flower-heads must be removed when the blooms are over. Bur Marigold. — {See BiDENS.) Burning Bush. — (See Dictamnus.) Butcher's Broom. — (See Ruscus.) Butomus umbellatus (Flowering Rush). — The only species is a British plant, common in swampy places throughout the country. It belongs to the Natural Order Alismaceae. It forms a tuft of up- right, sharp-edged leaves some 2 to 3 feet high. The erect flower stem, which well overtops the foliage, is terminated by an umbel of rose-coloured blossoms during the summer months. The Flowering Rush thrives in boggy ground, and is readily increased by division, best carried out in early spring before growth recommences. It is a first-rate plant for the margins of lakes and similar spots, or for the water garden. Butterfly Tulip. — (See Calochortus.) Buxus (Box). — This group, which belongs to the Spurge family (Euphorbiaceae), is composed of a few evergreen trees or shrubs, natives of Europe, North Africa, South Africa, the Himalaya, China, and Japan. One, sempervirens, is found wild in England, notably on Box Hill, in Surrey ; the hardy sorts are extremely useful by reason of their decorative effect and their ability to withstand severe clipping. The last qualification, added to a dense branch system, has led to Buxus sempervirens, the Common Box, being used extensively for topiary work, and plants clipped into all kinds of grotesque forms may be procured. Such plants live for a very long period, and are kept in shape by clipping the young shoots back once or twice during summer. There are many varieties of the Common Box ; pendula, with graceful drooping branches, forms the best specimen plant ; Handsworthii, latifolia, and pyramidalis are excellent kinds for hedges ; elegantissima and argentea have silver- variegated leaves ; aurea maculata, aurea pendula, and aurca marginata have golden-marked foliage ; prostrata is of creeping habit ; rosmarinifolia is renowned for its close growth and tiny narrow leaves ; whilst suffniticosa is a com- pact, low-growing kind in great demand as an edging to borders and paths. The last-named and those grown as hedges must be clipped once a year, but those grown as specimen plants require no other pruning than that necessary to make them shapely. They thrive in ordinary garden soil, and are increased by cuttings, or, in the case of Edging Box, by division. The wood of most of the Buxus or Boxes is very hard, close-grained, and valuable for engraving blocks, the mamifacturc of mathematical instruments, etc. In addition to the CACTUS 77 Common Box (Buxus sempervirens) the following are worth mention : balearica, a small tree with leaves upwards of an inch long, found in the Balearic Islands and about the Black Sea ; Harlandi, a Chinese shrub, with pale green rounded leaves ; Chinensis, distinct by reason of its low, stiff habit and long, narrow leaves ; Wallichiana, a native of the Himalaya, a very distinct kind, its leaves are dark green, if to 2| inches long and barely ^ inch wide. Cacalia. — {See Emilia.) Cactus. — The term Cactus is applied to a great variety of succu- lent plants, natives of the dry and arid regions of the warmer portions of the globe, and belonging to the Natural Order Cactaceae. Some are occasionally used for associating with other succulent plants for summer bedding, but most of them require glass protection even in summer. The only hardy Cacti are a few of the Opuntias, namely, monacantha, Rafinesqui, and vulgaris, all natives of North America. They have flowers of some shade of yellow, produced during the summer months. They resent an excess of moisture, hence should be planted in a sunny, well-drained spot, and if protected from heavy rains in winter, so much the better. Light sandy soil at the foot of a greenhouse or wall and a south aspect fulfil their needs. Caesalpinia.— This is a large genus, composed principally of tropical plants, very few of which can be considered to be of much importance in the garden. They belong to the Pea family. Two sorts, however, japonica from Japan and Gilliesii from South America, both very beautiful flowering shrubs, are sometimes grown out-of- doors in this country. Caesalpinia japonica forms a wide-spreading bush with long, rambling, spiny branches, clothed with large bright green leaves divided into numerous small lobes, and produces in summer large panicles of golden flowers. Gilliesii must be grown against a south or west wall, when it will attain a height of 20 feet ; its many- parted leaves are very beautiful, but its chief charm centres in the immense terminal inflorescences of large golden flowers with long red stamens. Light, loamy soil is suitable. The last-named kind requires little pruning ; the branches of the other should be shortened in spring. Caesalpinia japonica is increased by root cuttings, and Gifliesii by seeds. Calami ntha. — Pretty herbaceous plants, native of northern temperate regions, nearly related to the Sage and members of the same family (Labiatae). They are easily grown in ordinary garden soil. The principal species are Acinos, which grows about 6 inches high ; alpina, a small, creeping plant well suited for rockwork ; cheno- podium (Wild Basil) and grandiflora, about i foot high, all of which bear purple flowers in summer. jS THE BOOK OF HARDY FLOWERS Calandrinia {Rock Purslane). — The principal hardy kinds (Natural Order Portulaceae) are natives of Chili, and they all thrive in a light, sunny, well-drained spot. With the exception of umbellata, they are annuals, seeds of which may be sown out-of-doors in early spring. Some gardeners raise them under glass, but this is by no means neces- sary* ; all flower during the summer months. The best are : grandi- flora, which grows about i8 inches high and bears large rose-coloured blossoms with yellow anthers ; and Menziesii or speciosa, which only reaches about half the height of the others, and bears purpUsh-crimson flowers. Calandrinia umbellata, as above stated, is a perennial suit- able for the rockery ; it reaches a height of about 9 inches, and the rich magenta-crimson flowers appear throughout the summer. Calceolaria {Slipper Wort). — A remarkably shoNW class of plants, most oi which are natives of South America ; they belong to the Snap- dragon family (Scrophulariaceae). Some of them are very orna- mental, and have been crossed and intercrossed to such an extent that the garden varieties are now almost endless. Those termed Herbaceous Calceolarias are solely used for the decoration of the greenhouse, but many of the garden varieties are largely employed for simimer bedding. Of the true species, especial mention may be made of Calceolaria amplexicauhs, a tall-growing kind with lemon- coloured flowers ; it is much used for summer beds and w ill con- tinue to flower until frosts set in. Calceolaria integrifolia is quite a shrub, and in the West of England it is remarkably fine, the golden- yellow blossoms being chiefly borne during the autumn months. In most parts of the country it cannot, however, be depended upon out-of-doors unless in an especially sheltered spot. Calceolaria plantaginea is a hardy herbaceous plant about i foot high, of which the rich yeUow flowers are borne in the summer. A fairly cool, moist soil suits it best. Another hardy kind is polvThiza, a creeping plant about 6 inches high, the yellow flowers of which are slightly dotted with red ; it is a charming rockery plant. The garden forms are exceedingly numerous, included among them being Burbidgei, that grows to a height of 4 to 6 feet, and is generally met with in parks and gardens during summer ; Chbrani, an exceedingly floriferous kind, with pale yellow flowers, which does not, however, bloom throughout the season ; Golden Gem, rich golden- yellow, one of the best for bedding ; Golden Glory, a hardy kind, with large yellow flowers ; Sultan, bright crimson-brown, and numerous others. The herbaceous kinds can be increased by division, and the others are readily propagated by means of cuttings, which, put in sandy A BORDER OF CLARKIA AND OTHER ANNUALS CALENDULA 79 soil in a closed propagating case, will strike at almost any season of the year. The usual time, however, for putting in cuttings of the bedding varieties is in September ; they are dibbled in pots or boxes of sandy soil, and kept shaded from bright sunshine until rooted. They only require protection from frost during the winter, for Cal- ceolarias particularly resent being " coddled " at that season. In early spring they may be potted singly in readiness for bedding out late in May or early June. Calendula (Mangold). — Far and away the best of the Calendulas, which belong to the Daisy family (Compositae), is the common Mari- gold or at all eventssome of the varieties which have been obtained from it. The Marigold is a persistent bloomer, and even under the most adverse conditions in town gardens its golden-yellow blossoms enliven up an otherwise dull spot. This remark refers to the common kind, which springs up from seed ever5rwhere, but by a process of selection many greatly improved varieties have been obtained. Promi- nent among the best are Lemon Queen, soft lemon-yellow ; Meteor, orange-yellow, striped lemon-yellow ; Orange King, brilliant orange, very double ; Prince of Orange, orange, striped pale yellow ; and Yellow Queen, golden-yellow. Other kinds are : arvensis, yellow, 2 feet high, and Maderensis, orange. They are raised from seed sown under glass in March or out-of-doors in April. Californian Poppy.— {See Eschscholtzia.) Calla palustrls {Marsh Calla). — A pretty little bog plant, with rich green oval leaves, and during the summer a profusion of small white flowers suggestive of a miniature form of the Arum Lily. It is native of the Northern Hemisphere, and belongs to the Natural Order Aroideae. The entire plant when in bloom is not more than 9 inches in height, Callicarpa purpurea is a shrubby member of the Verbena family (Verbenaceae), and a native of China and Japan, It is hardy in the milder parts of the British Isles, but gives more satisfactory results when grown in a greenhouse. It forms long slender branches, which bear large quantities of small flowers during summer, and these are followed by a profusion of purple fruits. The plant is grown for its fruit alone, as neither leaves nor flowers have any pretensions to beauty. It must be grown from cuttings rooted in spring, and be given a compost of 3 parts loam, i part leaf-mould and well-rotted manure, and i part sand. Old plants may be pruned hard back in spring, and be kept for another year if necessary. There are several other kinds, but purpurea is the best for pots. Callicarpa japonica, a native of Japan, is most often tried out-of-doors. 82 THE BOOK OF HARDY FLOWERS one, a good selection therefrom being : albus, pearly-white, lined with silky hairs ; amoenus, rosy-purple ; Benthamii, rich yellow ; clavatus, bright yellow, large flower ; elegans, white, purple base ; Howcllii, creamy-white, brown hairs in centre ; Kennedyii, bright scarlet ; lilacinus, lilac ; luteus, yellow ; macrocarpus, violet-blue ; Maweanus, white, lined with blue hairs ; Plummerae, satiny-lilac ; pulchellus (Cyclobothra pulchella) and venustus, represented by numerous varieties, but all have the eye-like spots characteristic of the butterfly, in the interior of the flower. Calophaca wolgarica belongs to the Pea family (Leguminosae), and is native of South Russia. It forms a rather loose bush, 3 or 4 feet high, and is recognised by its small pinnate leaves and yellow Pea-shaped flowers, which appear in racemes in June. Although often grafted upon stocks of Colutea arborescens, it gives better results on its own roots, and should be grown from seed. Loamy soil suits its requirements, and pruning is unnecessary. A simny position is desirable, and it may be given a place about the summit of the rockery. Caltha {Marsh Marigold). — The Calthas are a race of moisture- loving herbaceous perennials, belonging to the Buttercup family (Ranunculaceae), and natives, for the most part, of the Northern Hemisphere. They are seen at their best when treated as water- side plants, and luxuriate under such conditions ; they are readily increased by division during the dormant season. Except in Caltha leptosepala (which is white), the flowers of the species are of some shade of yellow, and are produced in spring and early summer. One species, namely Caltha palustris. is a native of Great Britain ; this reaches a height of about 12 inches, and has large golden-yellow blossoms. The varieties of this kind are numerous, there being alba, white ; flore pleno, double ; minor, smaller than the type ; mon- strosa plena, very large ; semi-plena, semi-double. Polypetala, which reaches a height of 18 inches, and has very large leaves and blos- soms of rich golden-yellow colour, is native of Asia Minor. Calvary Clover. — {See Medicago Echinus.) Calycanthus.— The several members of this group (Natural Order Calycanthaceae) are known as Allspice, by reason of the peculiar fragrance of their reddish-brown, many-petalled flowers. Three hardy kinds have been introduced : floridus and glaucus from the Southern United States, and occidentalis from California. The last-named is the most vigorous shrub, for it sometimes grows 8 or 10 feet and 10 feet across. As a rule, however, it is from 4 to 5 feet high. Caly- canthus glaucus is a very similar plant, except that the under-sides THE CROSSWORT (CRUCIANELLA STYLOSA) FLOWERS OF ONE OF THE ANNUAL CHRYSANTHEMUMS DOUBLE WHITE FEVERFEW CANTERBURY BELL (CAMPANULA (CHRYSANTHEMUM PARTHENIUM) MEDIUM) CALYPSO BOREALIS 83 of the leaves are glaucous. They enjoy a sunny position in light loamy soil, and may be increased by seeds, cuttings, or division of the plants. No regular pruning is required ; simply thin the plants now and then, and cut them back in spring if they are outgrowing their positions. The flowers are borne during summer. Calypso boreal is. — This, which is the only member of the genus, is a terrestrial Orchid (Natural Order Orchidaceae), native of cold districts in the Northern Hemisphere. It produces a solitary leaf and a slender stem, about 12 inches high, bearing a single flower. The blossoms, which in shape are a good deal similar to those of a Cypripedium, are pink marked with brown, with a yellow crest on the lip. The Calypso needs a moist position and a soil largely con- sisting of peat and leaf-mould. It is not an easy plant to maintain in a flourishing state. Summer flowering. Calystegia {Bear Bind).— Some of our most troublesome weeds belong to this group, among them being the Hedge Bindweed, Caly- stegia sepium (Natural Order Convolvulaceae), of which the large white flowers are very showy, but owing to its long creeping shoots it is difficult to eradicate once it gets into garden ground: The only one grown for its ornamental qualities is pubescens, also known as hederacea. This is vigorous, and bears a profusion of double rose- coloured blossoms for a long time during the summer. For furnishing screens and trellises at that season it is very attractive, but it is as troublesome to get rid of as the common Bindweed. Camassia. — Pretty flowering bulbous plants, natives of North- West America and belonging to the Lily family (Liliaceae). They produce an erect flower stem varying from i foot to 2 feet in height ; the flowers, which open in May and June, are borne on the upper part, and vary from white to blue. The bulbs prefer a rather moist, loamy soil, and should be planted in autumn at a depth of 4 to 5 inches. The chief species are : Cusickii, pale blue ; esculenta, deep blue ; Fraserii, light blue ; and Leichtlinii, creamy-white. Camellia. — This is a very important group, both from decora- tive and economic points of view, for on the one hand it includes a considerable number of valuable evergreens and ornamental flower- ing shrubs, and on the other hand one of its members is the common Tea plant. It belongs to the Natural Order Ternstroemiaceae. The seeds of various kinds are also rich in oil, which is extracted and forms an article of commerce. They are natives of China and Japan, and the best known in this country is japonica, which is represented by a large number of varieties bearing single, semi-double, or double flowers, of all shades from white to pink and deep red. Although 84 THE BOOK OF HARDY FLOWERS generally grown in a cool greenhouse, they are hardier than many people imagine, and there are numerous gardens in the South of England where large bushes grow luxuriantly in the open ground, and they blossom almost every year. When grown out-of-doors they give less trouble than when planted in borders under glass, providing they have well-drained, warm soil. Pruning is not often necessary except for the purpose of shaping the bushes, but if plants are be- coming thin about the base they may be cut hard back in spring. Plants under glass may be grown in pots or borders, but in which- ever way they are grown they must be given thorough drainage, for anything approaching sourness of the soil or improper drainage is against the perfection of the flowers. Complaints are frequently made about bud-dropping of Camellias, and the cause may often be traced to unsatisfactory soil or drainage. Broken bricks, covered by clinkers, form excellent drainage for beds, and over that a layer of turves should be placed, grass side downwards. From i^ to 2 feet of soil will be ample, and the compost should consist of 3 parts loam, I part peat, and i part coarse sand. Propagation is effected by grafting the varieties upon stocks of the type under glass in spring. Good varieties are : Chandleri elegans, rose ; alba plena, double white ; Contessa Lavinia Maggii, white, red stripes ; C. H. Hovey, crimson ; imbricata, a fine double red ; Marchioness of Exeter, rose ; Mathotiana, large double red ; M. alba, white ; Thomas Moore, car- mine. Donckelaarii, a deep red semi-double, is one of the best kinds for outdoor planting. Among the species or wild types are : reticulata, a handsome Chinese plant, requiring greenhouse shelter, the red flowers are semi- double and very large ; rosaeflora, a native of Cliina, has pretty little double rose-coloured flowers, scarcely i| inches across ; Sasanqua is a Chinese and Japanese bush, with small ovate leaves, it bears single or double flowers, 2 to 3 inches across ; there are many varieties. Camellia theifera, the common Tea plant, which bears white flowers about i^ inches across, is worth growing as a plant of more than general interest. The dried young leaves fonn the tea of commerce. Campanula {Bell Flower). — A very large group (Natural Order Campanulaceae), consisting chiefly of hardy herbaceous perennials ; the flowers of nearly all are white or of some shade of blue. While some of the alpine species need care and attention, most of them flourish under ordinarily favourable conditions. Most of the Cam- panulas are natives of Europe, but a few of them are found in Northern Asia. All have more or less beU-shaped flowers, hence the popular name of Bell Flower: < < < o H o Oh < a, < O b hJ W PQ W <; CAMPANULA 85 There are a few annual kinds, namely, drabaefolia, a dense-growing little plant, with purple-blue flowers ; ramosissima (Loreyii) grows about 18 inches high, its violet-blue flowers are borne during the summer months ; and macrostyla, from the Taurus Mountains, a strange-looking plant, with stiff, hairy stems and erect, solitary blue flowers. The two first-named may be sown in the open ground, but the last needs to be sown on a warm, sheltered border. Of biennial Campanulas, only one species need be mentioned, namely, the Canterbury Bell (Campanula Medium). This, represented by several forms, is probably grown to a far greater extent than any other. Canterbury Bells are largely employed for greenhouse decora- tion, but more particularly for the embellishment of the outdoor garden. For the latter purpose the seed is sown in May or June, and when the young plants are sufficiently advanced they are planted out in prepared beds until the border is ready for them in which they are to flower the next year. The extent to which the varieties differ from the type in the case of the Canterbury Bell is truly remark- able, for not only does the normal form bear flowers of different shades of rose, white, and blue, but there are varieties with double blossoms, in which the range in colour is just as great. Added to these there is a singular form known as Campanula Mediiun calycanthema, in which the calyx is large and spreading and of the same colour as the corolla ; this is popularly termed the Cup and Saucer Canterbury Bell ; the same colours are also represented in this as in the ordinary form. When Canterbury Bells are flowering in the outdoor garden, especial care should be taken to see that they do not seed ; if the old flowers are cut off as soon as they are past their best, a secondary and fairly effective display will be the result; The different perennials may be divided into two classes : firstly, those of vigorous growth, which may be planted in the herbaceous border and simflar positions ; and secondly, the low-growing kinds, suitable for the rock garden. A selection of the best of the taUer growers includes alliariaefolia, 2 feet, creamy- white ; glomerata, i| feet, blue ; grandiflora, i| feet, blue ; Hendersonii, 12 inches, mauve ; lactiflora, 2 feet, white, tinged blue ; latifolia, 4 feet, blue ; and persicifoha, 3 feet. The last-named is the finest of all the border Campanulas, and there are many varieties with double and single flowers in blue and white. Campanula pyra- midalis and its variety alba, which reach a height of 4 to 6 feet, are very effective in the outdoor garden during summer. Other kinds are : Trachelium, 3 feet, blue ; Trachehum flore pleno, 3 feet, blue, double ; and Van Houttei, 2 feet, blue. 86 THE BOOK OF HARDY FLOWERS Dwarf kinds suitable for rockwork and similar positions are : carpatica, of which there are several varieties ; G. F. Wilson, purplish- blue ; garganica, blue, with white eye ; isophylla, blue ; isophylla alba, white ; muralis, pale blue ; pulla, deep purple ; pusilla, blue and white ; Rainerii, blue ; turbinata, different shades of blue and white ; and Waldsteiniana, light blue. All of these Campanulas flower during the summer months. Campanula rotundifolia, a native spieces, is in different parts of the United Kingdom known by the names of Bluebell and Harebell, It grows about i foot high. Tlie following are the most difficult of the rock garden Cam- panulas : Allioni, very dwarf, pale blue, is best in the moraine ; alpina, 6 inches, with blue-fringed flowers, likes loam containing lime ; cenisia, dwarf, blue, star-shaped blooms, must be grown in the moraine ; excisa, with miniature, drooping, purple flowers, needs similar treatment ; Rainerii, having somewhat larger flowers, is best in the moraine ; so, too, is Zoysii, a tiny plant with blue tube-shaped flowers. The other dwarf-growing kinds named like gritty soil and either a half-shady or sunny spot. Campion, Rose. — {See Lychnis.) Canary Grass. — (See Phalaris.) Candytuft. — {See Iberis.) Canna {Indian Shot). — There are comparatively few species of Canna (Natural Order Scitamineae), but there are innumerable garden varieties of great value for various decorative purposes. They are largely used for bedding during the summer months, and, from their bold, handsome foliage, varying from light glaucous green to bronzy- red, and blossoms of many colours, they form an imposing feature. The cultivation is not at all difficult ; the chief point to remember is that they need rich soil. Manure should be incorporated with the soil, while they must not be allowed to suffer from want of water. Cannas form creeping underground roots or rhizomes, as they are termed ; if these are divided in spring, each piece with a growing point will form a separate plant if it is potted singly and placed in a warm greenhouse. Plants obtained in this way are of useful size for bedding out in June. At the first approach of frost, the clumps should be lifted and placed where they are safe, but are at the same time not subjected to much heat. During the winter they may be kept dry, for they remain totally dormant. Cannas may be used in pots or tubs, and are then useful for standing on terraces, bal- conies, and in similar positions during summer. Seeds can be bought cheaply, and young plants are readily raised in warmth. Owing to their excessive hardness, whence the name of Indian Shot is derived, CANNABIS SATIVA 87 the seeds take some time to germinate unless they are assisted in some way ; this is done by fihng the hard outer surface of the seeds, or by soaking them in warm water for twenty-four hours previous to sowing. Raising from seed is, however, scarcely to be recom- mended, as rhizomes or roots of the best kinds, when dormant, can be purchased cheaply. The following varieties can be recommended : Adolf Grimmonger, clear carmine ; A. Ortmann, velvety-purple ; Due Ernst, reddish- scarlet ; Duke of York, crimson, golden border ; EHzabeth Hoss, canary- yellow, spotted red ; Evolution, rich golden-yellow, pink centre ; Frau E. Kracht, rosy-salmon ; Furst Weid, crimson ; J. B. Van der Schoot, yellow, purple spots ; King Humbert, orange-scarlet ; Niagara, scarlet, gold margin ; Ottawa, rosy-cerise ; R. Wallace, canary-yellow ; Stuttgartia, orange-scarlet, edged light yellow ; The Gaikwar of Baroda, rich yellow, large crimson spots ; and William Saunders, bright scarlet. Cannabis sativa {Hemp). — An easily grown hardy annual, be- longing to the Nettle family (Urticaceae), and native of India, that will succeed in ordinary garden soil. The seeds are usually sown in March, in the greenhouse, though they may be sown out-of-doors in April. Apart from its economic value, the Hemp, owing to its elegantly cut leaves, is decidedly ornamental. It is frequently used for sub-tropical bedding. There is an extra vigorous variety known as the Giant Hemp, which is employed for this purpose even more than the typical kind. Canterbury Bell — {See Campanula Medium.) Caragana. — This group of deciduous shrubs, belonging to the Pea family (Leguminosae), consists of a number of ornamental species which are generally hardy throughout the British Isles. They are natives of Siberia, Central Asia, Japan, etc., and most of them thrive in ordinary garden soil, preferring that of a loamy character. They are usually grown from seeds, but certain varieties are grafted upon stocks of their respective types, the work being conducted under glass in spring. Very little pruning is necessary, save when plants are outgrowing their positions ; then they are cut back somewhat after flowering ; a little pruning to keep them shapely is all that is required at other times. They may be planted in shrubberies or grown singly as specimen plants. The chief kinds are : arborescens, a Siberian shrub, v/hich grows 12 to 15 feet high, it bears yellow Pea- shaped flowers in May — there are several distinct varieties, nana being dwarf and compact, pendula is a variety with weeping branches, whilst Redowskii is very striking by reason of its long vigorous 88 THE BOOK OF HARDY FLOWERS branches, which often assume a pendent character ; aurantiaca is a slender-growing busli, 2 to 3 feet high, which bears its bronze and orange flowers freely ; frutescens is widely distributed from Southern Russia across Central Asia to Japan, it grows from 10 to 12 feet high, and produces yellow flowers freely in May ; grandiflora, angustifoha, and pendula are well-marked varieties. Carbenia benedicta {Blessed Thistle). — A hardy annual (also known as Cnicus benedictus), member of the Daisy family (Com- positae), and native of Southern Europe ; it bears heads of pale yellow blossoms. It is not, however, the flowers that form the most attractive feature of this plant, but the handsome leaves. These are much cut, with somewhat spiny margins, and are blotched and marbled with silvery-white. From seed sown in spring out-of-doors, this Thistle will grow in any ordinary garden soil ; it forms a pleasing feature in the herbaceous border or front of the shrubbery. Cardamine {Bitter Cress). — An extensive group of low-growing plants, natives of the temperate regions of both hemispheres, and belonging to the Wallflower family (Cruciferae). Many of them are but weeds. The perennials most useful for garden purposes are : macrophylla, which reaches a height of about 12 inches, and bears spikes of purple blossoms during summer ; pratensis fiore pleno, a double-flowered variety of our own Cuckoo flower or Ladies' Smock, with hlac blossoms ; and trifolia, a pretty little spreading evergreen plant, of which the pure white flowers are borne in spring. All are easily increased by division, which is best carried out immediately after flowering or during the dormant season. Cardinal Flower. — {Se'e Lobelia cardinalis.) Carduus {Thistle). — A family of Thistles of no ornamental value, which will thrive in any ordinary garden soil. They belong to the Daisy family (Compositae): Many plants that used to be included in this genus are now classed under another name, e.g. Cnicus. Carex {Sedge). — The different Sedges (Natural Order Cyperaceae) occur generally in damp or marshy places throughout the greater part of the globe. The majority are of no horticultural value, being, in fact, under certain conditions troublesome weeds. For water- side planting the following are suitable : acuta variegata forms tufts of pretty grass-like foliage, striped with white ; gallica variegata has golden variegated fohage, about 8 inches in height ; Morrowii variegata is a pretty variegated Sedge, stronger in growth than the preceding ; pendula is a pretty waterside plant that will reach a height of 5 feet or so, and bears graceful spikes of blossoms ; and riparia variegata, growing 3 feet high, has clearly variegated leaves. CARLINA 89 Carlina. — The two members of the genus Carhna (Natural Order Compositae) are very distinct and decidedly ornamental; Both of them are natives of the South of Europe. The first, Carlina acanthi- folia, has large-spreading pinnate, spiny leaves, from the centre of which arises a pretty white Thistle-like head some 2 feet high. The second, Carlina acaulis, is a remarkable plant, forming a flat rosette of dark green leaves, with a large head of white flowers resting in the centre ; the effect produced by the wide-spreading leaves and large flower cluster, of a height of only a few inches above the ground, is decidedly singular. Both are perennial, and will thrive in ordinary garden soil in a sunny spot. Carmichaelia is a curious and interesting group of shrubs, mem- bers of the Pea family (Leguminosae). The various species are natives of New Zealand, and are peculiar by reason of their slender, rush-like branches, which are sparingly clothed with small leaves. The Pea- shaped flowers are usually lilac in colour, and are produced freely during June and July. They are not generally hardy in the British Isles, but thrive in the South of England and in other places where a moderately mild winter temperature prevails. Propagation is by seeds or cuttings ; no pruning is necessary, and a mixture of peat and sandy loam forms a suitable soil. A sunny position is desirable in order that the branches may become thoroughly ripened. The chief species are : australis, Enysii, and flagelliformis. Carnation. — {See Dianthus.) Carpenteria californica is a very beautiful shrub belonging to the Natural Order Saxifragaceae. A native of California, it forms a bush 4 to 8 feet high, bearing narrow, oblong, evergreen leaves 3 to 5 inches long. The white flowers are upwards of 2 inches across, with conspicuous tufts of golden stamens ; they are produced several together in short racemes during early summer. Although it is not generally hardy, it may be grown out-of-doors in sheltered corners in a good many gardens, whilst it is also adapted to planting against a wall or in a cool greenhouse. Propagation is by seeds and layers. Light and well-drained loamy soil, with a little leaf-mould or peat, suits it, whilst there is no necessity to prune more severely than the shaping of the bush demands. It is allied to the Mock Oranges, and the flowers, though larger, are similar. Carpi n us (Hornbeam). — Moderate-sized trees, suitable for orna- mental purposes or for planting under forest conditions (Natural Order Cupuliferae). They withstand a fair amount of shade, and may be planted as undergrowth to thicken up thin woods. The wood is hard, heavy, and durable, but is difficult to procure in large quan- 90 THE BOOK OF HARDY FLOWERS tities. Increase is by seeds. Hornbeams thrive most satisfactorily on moderately heavy loam, although they may also be grown on light land. Wliilst the trees arc young, a certain amount of pruning is necessary each year in order to keep the leading shoots free from rivals, and the side branches from developing too rapidly in width. The numerous varieties are increased by grafting upon stocks of the Common Hornbeam. In all cases the flowers of the Hornbeam are inconspicuous, but the fruits are distinct and interesting. The grey- ish, smooth bark is also distinct, and produces a similar winter effect to that of the Beech. The chief kinds are : Betulus (Common Horn- beam), native of Europe and Western Asia, growing up to 50 feet high ; there are many varieties, of which asplenifolia, with cut leaves, columnaris and pyramidalis, of stiff, pyramidal outhne, and pendula, with weeping branches, are very distinct. Caroliniana is the American Hornbeam, a tall tree with softly pubescent leaves ; japonica and laxiflora are two graceful trees from Japan ; orientalis, the Oriental Hornbeam, is also a useful kind. Carya (Hickory). — Handsome trees (Natural Order Juglandaceae) closely related to the Walnuts and, like them, having handsome pinnate foliage. The leaves in most instances possess the attraction of turning a brilliant golden-yellow in autumn for two or three weeks previous to their fall. Nine or ten species have been introduced from the United States, where they form handsome trees, valuable alike for their timber and oily edible nuts. The timber is renowned for strength and elasticity. Several, notably tomentosa and olivae- formis, are grown on purpose for their nuts, which are used for dessert ; the nuts of the latter are received regularly in our markets under the name of Pecan or Peccan Nuts. In this country the trees are grown solely for decorative purposes, their best proportions being attained in deep loamy soil. Propagation is by seeds sown, when possible, where the trees are to grow ; but when transplanting is necessary, care should be taken to procure trees which are well furn- ished with fibrous roots. They are naturally deep rooting, and have a tendency to form long roots with a small amount of fibre. It is wise to plant them in permanent positions as early in life as possible. Prun- ing is necessary while the trees are young in order to keep them shapely and the leaders free. This may be done any time during summer. The principal kinds are : alba, shell bark Hickory, an upright-growing tree with large handsome leaves, which are very showy in autumn ; amara, this differs from the other kinds by bearing bitter instead of sweet nuts, it is less ornamental than the foregoing tree ; olivae- formis is one of the most important nut-bearers, it is, however, rather CARYOPTERIS MASTACANTHUS 91 too tender for general cultivation in the British Isles ; porcina, com- monly called the Pig-nut, is the hardiest of all, it bears large quantities of small hard-shelled nuts, which ripen well in this country when the summer is fairly warni ; sulcata is a handsome tree, and one of the best for timber ; tomentosa has perhaps the finest leaves of all, and they are, with those of alba, the most brilliantly coloured in autumn ; it is a strong-growing tree. Caryopteris Mastacanthus is a Chinese and Japanese shrub belonging to the Natural Order Verbenaceae. It grows from 2 to 3 feet high with a similar spread, bears small, deeply-lobed, greyish- green leaves, and produces pretty heads of bright blue flowers in September ; the variety candicans bears white flowers. It is not very hardy, and usually gives the best results when planted in light loamy soil near the foot of a warm wall. The only pruning required is the removal of the flower-heads when the flowers fade. Propagation is by cuttings under glass. Cassandra calyculata {Leather Leaf). — This shrub, which is native of the Northern Hemisphere, and a member of the Heather family (Ericaceae), is perfectly hardy, and forms an upright bush 2 to 3 feet high with evergreen oblong leaves, and bears white flowers from the leaf axils in April or May. The variety latifolia grows somewhat taller than the typical kind, whilst nana is dwarfer and more com- pact and the best plant of the three. Moist, peaty soil or light loam free from lime is required ; propagation is by seeds, and pnining is unnecessary. Cassia.— The Cassias consist of an extensive group of trees and shrubs belonging to the Pea family (Leguminosae), and natives, for the most part, of the warmer regions of the globe. One of them, namely marylandica, is a sub-shrub, and is the only hardy kind. This, which dies almost to the ground during winter, produces annual A BLUE-FLOWERED SHRUB (Caryopteris Mastacanthus) 92 THE BOOK OF HARDY FLOWERS shoots to a height of 3 feet or so ; these are clothed with neat pin- nate leaves, and bear on their upper part axillary racemes of bright yellow blossoms. This Cassia thrives best in a warm, well-drained soil and a sunny spot. The second species in general cultivation is corymbosa, which during winter requires the protection of a green- house, but is often used for bedding purposes in summer. It is an evergreen shrub with pinnate leaves of dark glossy green tint, and bears a profusion of golden yellow blossoms throughout the summer. It may be readily raised from cuttings, inserted in warmth in spring, and established plants can be wintered in an ordinary greenhouse. It is generally met with in the summer as a bush from 4 to 6 feet in height, and associated with Heliotrope, Solanum jasminoides, Browallia Jamesonii, etc. Cassia marylandica can be readily increased by division in autumn. Cassinia. — Evergreen shrubs, belonging to the Daisy family (Compositae), which are of decorative appearance by reason of their tiny bright-coloured leaves. Thus the undersides of the leaves and the young bark of Cassinia fulvida are golden in colour. In the case of Cassinia leptophylla the colouring is silver, whilst that of Vauvil- liersii is between the two. All are natives of New Zealand, and they are naturally of rather loose growth ; they, however, respond well to pruning, and become quite dense in time. Cuttings root well in summer and the plants thrive in light soil. Pruning may be prac- tised any time during summer. Cassinia Vauvilliersii is not very hardy. Cassiope. — Heath-like shrubs (Natural Order Ericaceae) which require similar soil conditions to the Heaths. Three species are in cultivation, fastigiata from the Alpine Himalaya, and h5^noides and tetragona from the alpine regions of the Northern Hemisphere. They are rather curious little plants by reason of the angled arrangement of the small dark green, scale-like leaves, from among which the white bell-shaped flowers appear during summer. Propagation is by seeds or cuttings ; no pruning is required. Castanea {Spanish Chestmit). — This is a small but important genus of timber trees (Natural Order Cupuliferae), including as its best-known representative the Spanish or Eating Chestnut (Castanea sativa); There are three kinds in cultivation, sativa from South Europe, North Africa, etc. ; pumila from the Southern United States, and dentata of North America, commonly called the American Chest- nut. The nuts of the common sort are an important product in Spain, France, and Corsica, whilst in the latter country a large business has developed within the last few years by the extraction of tannin from the wood. The timber bears a strong resemblance to Oak, and is SWEET WILLIAM PINK BEAUTY AND KNIPHOFIA TUCKII CASTANOPSIS CHRYSOPHYLLA 93 used for similar purposes. A great deal of Chestnut wood from small clean-grown trees is split and used for fencing, whilst it is also serviceable for posts and stakes. The tree coppices well, and is often used for that purpose. Both the common Chestnut and its varieties are planted widely as decorative trees, but they are less beautiful than the Oaks for landscape effects. They prefer loamy soil, but are not very particular providing it is moderately deep. Propagation of the species is by sowing the nuts out-of-doors and of the varieties by grafting or budding upon the typical kind. Pruning is necessary each year, whilst the trees are young, in order to keep them shapely and well-balanced. Later it is confined to the removal of dead and broken branches during summer. Good varieties of Castanea sativa are asplenifolia, Downtoniana, and pyramidalis. Some varieties are little more than monstrosities. The typical kind often attains a height of 90 or lOO feet, with a trunk diameter of from 3 to 5 feet ; the bark has often a tendency to a spiral arrangement. Castanopsis chrysophylla {Golden-leaved Chestnut). — This tree (Natural Order Cupuliferae) is known as the Golden-leaved Chestnut by reason of the golden reverse of its evergreen leaves. It is native of Cahfornia. There are other kinds, but this is the only one of any importance in the British Isles. It is closely related to the Sweet Chestnut, differing by its evergreen leaves, which resemble those of the Evergreen or Holm Oak in outline, and by its fruits taking about fifteen months to ripen from the time when the flowers appear. Those of the Sweet Chestnut ripen the same year. In its native country it fonns a large tree ; here, a small tree or bush. It thrives in light loamy soil in the southern counties, and should only be pruned suffi- ciently to keep it shapely. Propagation is by seeds. A fairly shel- tered position on a lawn should be provided, or, if it is planted amongst other bushes or trees, it should be allowed proper space for develop- ment; Castor Oil Plant. — {See Ricinus.) Catalpa. — This is a very important group of decorative trees belonging to the Natural Order Bignoniaceae, natives of the United States, Japan, and China, the better-known kinds being from the first-named country with one exception, which comes from Japan. The Chinese kinds are of recent introduction, and are not in general cultivation yet ; some of them, however, promise to be as ornamental as the better-known sorts. All have large ornamental leaves, usually more or less heart-shaped, but sometimes rounded, with deep lobes. The flowers are usually large and conspicuous, and are borne in large terminal panicles during July or August. In some instances they CATHCARTIA VILLOSA 95 Catch Fly. — (See Lychnis.) Cathcartia viliosa. — A Poppy-like perennial (Natural Order Papaveraceae), native of the Himalayas, that forms a tuft about 12 inches in height ; the leaves are Vine-like, 3 inches across, and densely hairy, while the rich yellow flowers, 2 inches in diameter, are at their best in June. It thrives in a sheltered, sunny spot in light, well-drained soil, and may be increased by division in autumn. This Cathcartia is comparatively rare in gardens. Ceanothus {Mountain Sweet). — The Ceanothuses (Natural Order Rhamnaceae) occupy a prominent position amongst flowering shrubs, both by reason of their free blossoming character and because a number of them produce blue flowers, a colour which is uncommon amongst shrubs. They are natives of North America, the majority being found in California or other Western States, but a few occurring in other parts. The different kinds may be divided into two distinct groups by reason of the manner in which they produce their flowers. One group, composed of two or three species and a number of hybrids, bear flowers from the points of the current year's shoots during summer and early autumn, and the younger branches should be pruned back to within a few buds of the base each February. Weak shoots may be removed altogether, and if an old branch appears to be dying, it may be removed and a vigorous young shoot left to take its place. The other kinds, chiefly natives of Cahfornia, blossom in spring from shoots formed the previous year ; these must not be pruned until after the flowers are over, and it then depends how they are grown as to the amount of pruning required. It is customary to plant them against walls, as they are rather tender. When that is done all the side shoots must be cut back to within a bud or two of the main branches. But a few are grown in the open ground, and when that is the case pruning is unnecessary except for shaping the bushes. All may be increased by cuttings taken during July and inserted in sandy soil in a closed frame. Light but moderately good and well- drained loamy soil is suitable for all of them. It is unwise to plant any of the Ceanothus in very cold places, though the garden hybrids may be grown in many parts of the country, especially if a little dry Bracken is sprinkled amongst the branches during frosty weather. The following are the chief species and hybrids : americanus is a bush, 2 to 4 feet high, from the Eastern United States, it bears ter- minal heads of white or light-coloured flowers during summer and early autumn ; azureus is a Mexican shrub, 3 feet high, which blooms in summer and autumn ; between these two kinds hybrids have been raised and a system of intercrossing has resulted in a group of hand- 96 THE BOOK OF HARDY FLOWERS some sorts which are very free-flowering, and offer a wide range of colour from white to pink and from mauve to deep blue. All bloom from July to October. Though usually grown in beds, they cUre some- times planted against walls. Good kinds are : Carmine Gem, carmine ; Ceres, rose ; Charles Detriche, dark blue ; Gloire de Versailles, rich blue ; grandiflora, blue, grandiflora alba, white ; Indigo, dark blue ; Lustre, rose-carmine ; and Rose Perle, rose. Ceanothus divaricatus is a spring-flowering evergreen with blue flowers ; integerrimus bears large heads of lilac flowers during late spring ; papillosus is a curious kind by reason of its leaves being covered by viscid glands, its blue flowers open during May ; rigidus is a handsome April-flowering kind, bearing rich deep blue blossoms ; thyrsiflonis, the Californian Lilac, is one of the hardiest of the spring- flowering set, its flowers are blue, whilst those of the var. griseus are pale lilac ; Veitchianus is a charming blue-flowered species with small evergreen leaves, it blooms in May. Cedrela Sinensis is the only member of this useful group of timber trees (belonging to the Natural Order Meliaceae) which is of any value for decorative planting in the British Isles. Of medium size, it resembles the Tree of Pleaven (Ailanthus glandulosa) in its foliage, which is its most decorative asset. It may be planted in warm, well-drained loamy soil, is increased by seeds, and attention to pruning is necessary during its early development, summer being the best time for the removal of superfluous branches. It is a native of China and Japan. Cedrela Toona, the Toon Tree of India, and odorata, the West Indian Cedar, are two important allied kinds ; the wood of the former is in request for many purposes, and amongst other things the timber of the latter is very largely used for cigar boxes. Cedronelia.— Of the members of this group, which belong to the Sage family (Labiatae), Cedronelia cana is a pretty Salvia-like plant, with spikes of bright red flowers borne during the summer months. It is a good plant for a warm border, where it reaches a height of i8 inches or so. The second to mention is Cedronelia triphylla, which used to be known as Dracocephalum Canariensis, and popularly as the Balm of Gilead ; in cold districts it is usually regarded as a green- house plant, but in the milder parts of the country it is quite hardy on a warm border in well-drained soil, and grows 3 feet or more high. The flowers, produced in long spikes during summer, are of bright purple colour ; the chief attraction of Cedronelia triphylla is, how- ever, not in the blossoms, but in the fragrant foliage. In former days, when 'it was more often grown than now, this Cedronelia was to be found in almost every greenhouse to supply cut sprays for the nose- CEDRUS 97 gays of that period. Cedronella cana is a native of Mexico, while triphylla comes from the Canary Isles, the date of its introduction being as long ago as 1697. Both may be increased from cuttings put in a closed case in sandy soil in spring. Cedrus (Cedar). — This group of Conifers (Natural Order Coni- ferae) includes three handsome and popular evergreen trees : Libani is the Cedar of Lebanon, atlantica, the Atlas Mountain Cedar, and Deodara, the Deodar of the Himalaya. The last-named is the most important commercial tree, for its timber is in great request for build- ing purposes, etc., in certain parts of India. It is the most tender of the three, but can be grown in most parts of the British Isles, except where climatic conditions are very dry or the atmosphere impure. Old trees of the Lebanon Cedar, with their massive trunks and wide- spreading tabular heads of branches, are very picturesque, but fully- grown trees of the other kinds are not yet to be found in this country. As young trees, they are superior in their decorative qualities to the Lebanon Cedar, the glaucous-leaved forms being particularly hand- some. They must be increased by seeds, and should be planted in moist, but well-drained soil of fairly good quality. Very little pruning is necessary except to remove dead branches. The Cedars must be allowed ample space, for no tree looks worse when crowded by others or grown amongst cramped surroundings. They are, however, useful alike as isolated specimens, for groups or avenues. At one time grafted trees were sold by some nurserymen, and it may be that the practice still survives. Such plants must, however, always be left alone, for they are never satisfactory. Celastrus. — Climbing shrubs (Natural Order Celastraceae), of which the chief attraction lies in the showy fruits, which ripen during autumn and remain on the plants until the New Year. The outer parts of the fruits are golden, but when ripe the coat splits open and reveals the orange-coloured seeds within. They thrive in loamy soil, require plenty of space, are increased by seeds, and do not require regular pruning. Celastrus articulatus and scandens are the two most satisfactory kinds to plant ; the former is from China and Japan, and the latter from North America. Ceimisia. — ^The Celmisias are dwarf, Aster-like plants (Natural Order Compositae), natives chiefly of the mountainous districts of New Zealand ; the majority of them have a rosette-like cluster of lanceolate leaves, densely covered with long silky hairs. The flower- heads have usually white ray florets and a yellow disc, and are borne on firm, erect stems which overtop the foliage. The Celmisias are very difficult to cultivate successfully in this country ; owing to the H 98 THE BOOK OF HARDY FLOWERS silky nature of the foliage, the dampness in winter often proves fatal to them, while at the same time they cannot well stand very sharp frosts. The conditions most favourable to their well-doing are a well- drained, sunny spot on rockwork, and a certain amount of protection from heavy rains in winter. There are about twenty-five species known to botanists, but comparatively few have been introduced. The best-known are : coriacea, with flower heads from i^ to 3 inches in diameter, the white ray florets being especially numerous ; Lind- sayi, altogether a smaller-growing plant ; holosericea, the hardiest ; and spectabilis, of which the florets are sometimes tinged with lilac. The Celmisias are increased by means of seeds, and need a soil con- sisting of loam and sand. Celosia. — The plumose varieties of Celosia (Natural Order Amar- antaceae) are very largely employed for summer bedding in the flower garden. Some of the colours are almost startling in their bright- ness, but judiciously used many striking effects may be produced. The various shades of purple, scarlet, and orange are freely repre- sented in the flowers of Celosia plumosa. In order to obtain plants for summer bedding, seed is sown towards the end of March or early in April, in a temperature of 50° to 60°. The seedlings will then make rapid progress, and care must be taken that they are not checked. As soon as they are large enough to handle the young plants are pricked off into pans or boxes of light soil. It will not be long before they are ready to pot singly in fiower-pots 3 to 4 inches wide. Throughout the whole of this period the plants must have a hght position in the greenhouse in order to prevent their becoming in any way " drawn." They are tender, and must not be planted out-of-doors before June. While Celosia plumosa is chiefly used for bedding, the Cockscomb (Celosia cristata) is sometimes em- ployed for the purpose. It should be given the same treatment as the other, and from its uncommon appearance is sure to attract attention. Ceisia. — Annual, biennial, and perennial herbs, natives principally of the Mediterranean region, most of them being hardy only in light soils and in a warm situation. They belong to the Snapdragon family (Scrophulariaceae). All are readily raised from seeds sown in spring or early summer. A selection of the best includes Arcturus, that reaches a height of about 4 feet, with branching spikes studded with yellow blossoms ; betonicaefolia, 3 feet high, flowers yellowish, marked inside with purplish-brown ; cretica (Cretan Mullein), which reaches a height of quite 6 feet, and bears erect spikes of rich golden-yellow blossoms with two brownish spots inside. All flower during the AN EDGING OF WHITE PINKS (MRS. SINKINS) CELTIS 99 summer months, are best treated as biennials, and are usually grown in the greenhouse. Celtis. — Small trees, belonging to the Nettle family (Urticaceae), possessing very hard timber ; they are found in Southern Europe, the Caucasus, China, Japan, and North America. About eight species have been introduced, but none is widely grown as the decorative qualities are hmited to the golden colour of the leaves in autumn. They thrive in any ordinary garden soil, are increased by seeds, and require sufficient pruning when young to form shapely trees. Some of the chief kinds are : australis, caucasica, and occidentalis. Centaurea {Knapweed). — Most of the members of this group, which belong to the Daisy family (Compositae), are natives of Europe, though some occur in Asia, North Africa, and North America. They consist for the most part of herbaceous perennials, though some are annuals. Among the best of the annuals is Centaurea Cyanus (Corn- flower). In a wild state its brilliant blue flowers are very conspicuous, especially in cornfields, hence its popular name. Under cultivation various forms have been produced, so that now we can obtain seeds of deep blue, light blue, rose, and white-flowered sorts, while there is also a race with double flowers, and another in which the plants are dwarf. The Cornflower is a hardy annual, and may be sown either in autumn or spring in the open ground. Well-dug soil is necessary, and room for the plants to develop, as overcrowding is particularly harmful. Another delightful annual is Centaurea moschata (Sweet Sultan), which, like the preceding, is of great value as a cut flower. This reaches a height of i8 inches to 3 feet, and if seed does not form will continue in beauty for a long time. The blossoms are from 2 to 3 inches in diameter, the finely-cut florets giving a particularly elegant appearance. While the typical kind has purple flowers, there are varieties in rose, yellow or white. Beside these, there is an improved race consisting of the varieties The Bride, white ; Bridesmaid, pale lemon-yellow ; Bridegroom, rose-pink ; and Honeymoon, bright golden-yellow. Other annuals include Centaurea americana, which reaches a height of about 3 feet and bears heads of reddish flowers, and depressa, somewhat like a low-growing Cornflower. The perennial kinds especially noteworthy for the beauty of their blossoms include Centaurea aurea, which reaches a height of 4 feet and bears Thistle-like heads of golden-yellow flowers ; babylonica, 8 feet or so high, with silvery fohage and yellow flowers ; dealbata, rosy- purple flowers, 2 feet ; glastifolia, yellow flowers in dense pyramids, while the foliage is also very graceful, height 4 feet ; macrocephala, a stately plant, with large golden-yellow flower-heads, height 4 feet ; 100 THE BOOK OF HARDY FLOWERS montana (Perennial Cornflower), 2 feet high, and of which there are varieties bearing blue, red, sulphur, and white flowers ; ruthenica, a graceful plant, with straw-coloured blossoms, height 4 feet. All these perennial species will grow in ordinary garden soil, and can be readily increased by division during autumn or by seeds sown in spring. Some Centaureas are grown solely for summer bedding, their dis- tinctive character being the silvery whiteness of the leaves ; these consist for the most part of ragusina and ruthenica, of which there are some selected forms, namely, candidissima, a compact, shapely plant about 12 inches high with silvery white leaves ; Clementei, leaves of the same tint but deeply cut, while the plant reaches twice the height of the preceding ; and gymnocarpa, about the same height as Cle- mentei, but with the leaves less divided. Of these candidissima is often used as an edging to flower beds, while all of them are generally employed as " dot " plants among low-growing plants. These silvery- leaved kinds can be raised from seed sown under glass early in spring, but at times they vary somewhat in shade. This being the case, the very best forms are often increased by means of cuttings taken about the end of August, inserted in pots of sandy soil, and placed in a frame kept close and shaded until they are rooted, which will be in about a month. If the cuttings show signs of " damping off " a little air must be given for a time. These Centaureas need to be kept safe from frost during the winter. Centaury. — {See Centaurea.) Centranthus {Valerian). — These are pretty, free-flowering, herba- ceous annuals or perennials (Natural Order Valerianaceae) that pro- duce a succession of bloom throughout th^ summer. By far the showiest is the Common Valerian (Centranthus ruber), which reaches a height of about 3 feet, and bears terminal heads of rose-red flowers ; there is also a white variety. Other species are : Calcitrapa, a smaller grower than the preceding, and macrosiphon, with rosy-carmine flowers. The two last-named are annuals. Cephalanthera pallens. — There is but one species of this genus, namely Cephalanthera pallens, a pretty little terrestrial Orchid (Natural Order Orchidaceae), which reaches a height of about 9 inches, and bears in May and June distinct sulphur-coloured flowers. This Orchid thrives best in a soil mainly consisting of chalky loam. Cephalaria. — Strong - growing herbaceous perennials (Natural Order Dipsaceae) that reach a height of 5 to 7 feet. They grow freely in any garden soil, and may be readily increased by division. The Cephalarias are nearly related to the Teasels, and are more fitted for the wild garden than for association with border plants. The flower- CEPHALOTAXUS loi heads are very useful for cutting. The chief species are alpina, rich yellow, leucantha, creamy-white, and tatarica, sulphur-yellow. All of them flower in June and July. Cephalotaxus is a group of conifers (Natural Order Coniferae) closely allied to the Yews. There are four species : drupacea and pedun- culata, natives of Japan, and Fortunei and Ohveri from China. All form ornamental, wide-spreading bushes with long dark green leaves which have silvery lines on the under-side. There is, however, a variety of pedunculata, named fastigiata, which is of pyramidal outline. They thrive in any garden soil where lime is not present in quantity, require no other pruning save that which is necessary to keep the bushes shapely, and are usually increased by seeds. They form good, isolated specimens, and are useful for undergrowth in thin plantations of conifers. Cerastium {Mouse Ear Chickweed).—Lov/-gTowing perennials, belonging to the Pink family (Caryophyllaceae), which are well suited for planting in the rock garden or for carpeting beds in the flower garden. Some of them are little better than weeds. The best are alpinum, a creeping plant, the leaves clothed with silky hairs, flowers white in June and July ; arvense and its var. grandiflorum, of which the white flowers are borne all the summer ; Biebersteinii, a vigorous kind, similar to tomentosum, but with larger leaves and flowers ; glacialis, bearing comparatively large white flowers during summer, a good rockery plant, and tomentosum, known popularly as Snow in Summer. The last-named is a small creeping plant, with oblong- shaped silvery leaves ; the plants should be grown in a spot fully exposed to the sun. It is the best white-leaved plant in cultivation for summer bedding, will thrive in almost any soil, and can be readily increased by division in autumn. Ceratostigma plumbaginoides.— Also known as Plumbago Larpentae. A charming autumn flowering plant (Natural Order Plumbaginaceae) for the rock garden, where on a spot well exposed to the sun the slender, wiry stems bear a profusion of brilliant cobalt blue flowers, disposed in terminal heads. Not only is it one of the most delightful of autumn flowers, but at that season the leaves take on a distinct reddish tinge. It needs a well-drained sandy loam, and can be readily increased by division in early spring. Cercis Siliquastrum {Judas Tree). — An interesting small tree or large shrub belonging to the Pea family (Leguminosae). It is a native of the Mediterranean region, and its common name originated from the legend that it was a tree of the same species upon which Judas Iscariot hanged himself after the betrayal of the Saviour. It 102 THE BOOK OF HARDY FLOWERS has considerable value as a decorative tree, for its rosy-red Pea- shaped flowers are borne in profusion from young and old wood alike during May. There is also a variety with white flowers, and several other species may be procured. Of the latter, canadensis is the Red- bud of North America ; occidentalis is from California ; semiformis is a native of Texas ; and Chinensis of China. All are, however, inferior in general beauty to the Judas Tree. They thrive in well-drained loamy soil, are usually increased by seeds, and require no other pruning save the removal of dead wood occasionally. Anyone growing these trees must be prepared for the loss of branches now and then owing to the Coral-spot Fungus (Nectria cinnabarina), a disease to which the wood is particularly susceptible. All wounds must be dressed at once with coal-tar in order in minimise the chances of the spread of the fungus. Oestrum. — Loose-growing showy shrubs, belonging to the Potato family (Solanaceae). One or two may be grown out-of-doors against walls or treUises in Cornwall, but, as a rule, they are better adapted for the greenhouse. They are natives of Mexico, Guatemala, Peru, Brazil, and other countries. Though naturally bushes, their long slender branches are well adapted for clothing greenhouse pillars and walls, hence their frequent use for these purposes. Few green- house plants have a longer flowering period or so well repay the care expended upon them. They are easily increased by cuttings in spring, and thrive in a compost of 4 parts loam, i part leaf-mould, I part well-decayed manure, and i part sand. AH secondary branches should be pruned to within a bud or two of the base in spring, the exact time for pruning being determined by the condition of the flowers. Specimens planted in borders are rarely without flowers from July to Christmas or after. Good kinds are : aurantiacum, from Guatemala, with orange-coloured flowers ; elegans, a native of Mexico, with bright red flowers, sometimes grown out-of-doors against sunny walls ; fascicularis, a red-flowered, vigorous kind from Mexico ; Newellii, a very free-flowering kind with scarlet flowers, often blossoms during spring, and pruning is deferred until after the flowers fade. Chamaepeuce {Fish Bone Thistle). — This genus consists of two distinct species, both of which are extensively used as " dot " plants in formal beds during the summer months. They belong to the Daisy family (Compositae). Chamaepeuce Cassabonae has long spreading dark green leaves, covered with white spines ; in Diacantha the leaves are white, margined with green. Both are biennials, and should be sown in a frame in April in order to yield plants for effective bed- ding the following year. They are natives of the Mediterranean region. H < S 2 a; c < (0 >H 1-1 W s o X "o u — ' c S , W ji O 2 t < K O 71 X. 2 bp < o o s X u H s ,^ w < X H CHEIRANTHUS 103 Cheiranthus {Wallflower). — A small group or genus (Natural Order Cruciferac), yet it contains one of the most popular of all garden flowers, Cheiranthus Cheiri, the Wallflower. Of late years some improved varieties have been introduced by florists, many seedsmen having their own special strains, which, as a rule, can be depended upon to come true from seed. Wallflowers can be readily raised from cuttings. They may remain in one spot undisturbed year after year and will flower freely. The general practice, however, is to treat them as biennials ; that is to say, to raise them from seed one year to flower the following spring. The seed may be sown in the open border in April or May, the young plants being pricked off into prepared beds as soon as they are large enough to handle. Space should be allowed for full development, so that the seedlings may form well-rooted bushy plants ready to be put in their permanent quarters in October. Before planting out the seedlings for the summer it is wise to shorten the principal root. One purpose for which Wallflowers are seldom used, yet well adapted, is for window-boxes ; when in bloom the delicious perfume pervades the room when the windows are opened. The flowers of the different sorts vary from pale yellow, almost ivory-white, to an intense dark crimson and deep purple. The intermediate shades include yellow, orange, salmon, and various tints of red and scarlet. Other kinds are Allionii, orange ; alpinus, pale yellow ; and Marshallii, deep orange, all being suitable for a sunny spot and light soil in the rock garden. The Common Wall- flower is splendid for sowing in a dry wall. Chelidonium majus (Celandine). — A pretty British plant, be- longing to the Poppy family (Papaveraceae), more fitted for the wild garden than for associating with choice kinds. It grows about 2 feet high, and bears a loose umbel of small Poppy-like flowers in spring and early summer ; the soft green divided leaves are also attractive. The Celandine grows far more freely in fairly damp, partially shaded spots than where fully exposed to sun and air. Chelone. — A small group of plants native of North America, and nearly related to the Pentstemon (Natural Order Scrophulariaceae). Many of those formerly regarded as Chelone are now included in Pentstemon. They grow about 2 feet in height and flower throughout the summer. Chelone glabra has purplish flowers ; Lyoni, rosy-pink ; nemorosa, rosy-purple ; obliqua, violet-purple ; and obliqua alba, white. They are quite hardy, will thrive in ordinary garden soil, and can be readily increased by division in autumn. Chicory.— (S^g Cichorium.) Chimney Bell Flower. — {See Campanula pyramidalis.) 104 THE BOOK OF HARDY FLOWERS Chimonanthus fragrans {Winter Sweet). — This is the only species, and belongs to the Natural Order Calycanthaceae. It is a hardy shrub, native of China and Japan, and succeeds quite well in a sunny position in the shrubbery in the vicinity of London, though in many gardens it is used as a wall shrub. It blossoms in mid-winter, the flowers being very fragrant, and having cream-coloured petals and reddish- brown calyx lobes. There is a less hardy variety, grandiflora, which bears larger golden flowers ; this must be given a position against a south or west wall. When grown in the open the typical kind attains a height of 4 or 5 feet if planted in warm, loamy soil contain- ing a little leaf-mould or peat. The type is increased by seeds and the variety by grafting. Bushes need no pruning when growing in the open, but the secondary branches of those against walls must be cut back after the flowers fade. The flowers are borne from the leaf axils of the previous year's shoots. China Aster. — {See Callistephus.) Chionanthus {Fringe Flower). — This is a showy class of hardy shrubs or small trees (Natural Order Oleaceae). Two species are in cultivation, retusus from China and Japan, and virginica from the Southern United States. Both are of vigorous growth, thriving in good but moist, loamy soil, rich in humus. They form bushes up to 8 or 10 feet high here, but grow much taller in their native coun- tries. The lance-shaped or ovate leaves are often 4 or 5 inches long, and from the axils the showy white fringe-like flowers appear during early summer. Propagation is by seeds, and regular pruning is unnecessary. Chionanthus virginica, the Snowflower or Fringe Tree, is the more beautiful of the two, its inflorescences being finer than those of the other. Chionodoxa {Glory of the Snow). — Charming little early flowering bulbs from Asia Minor, that serve to render our gardens gay before the dark days of winter have fully passed. They belong to the Lily family (Liliaceae), may be grouped freely in the garden or woodland, as they readily reproduce themselves from seed, and soon cover a considerable space of ground. On the exposed portions of the rock- work, colonies of Chionodoxas are very effective. In little borders near the house they are also much appreciated. The bulbs should be planted in August or September ; if kept out of the soil for long they deteriorate. The soil most suitable for them is well-drained sandy loam ; the bulbs are planted from 2 to 3 inches deep. The oldest and best-known species is Luciliae, with beautiful blue white- centred flowers. Other distinct forms which are regarded by botanists only as varieties of Luciliae are Allcni or gigantea, with much larger CHOISYA TERNATA 105 blossoms but fewer on a stem ; Sardensis, with smaller deeper- coloured flowers ; and Tmoli, the last to bloom, similar to Luciliae but of deeper colour. The Chionodoxas can be recommended for the out-of-door garden, as good flowering bulbs can be purchased at a cheap rate. There is a very pretty hybrid between Chionodoxa Luciliae and Scilla bifolia, known as Chionoscilla Allenii. Though somewhat variable, it is in general appearance about midway between its parents and needs the same treatment. Choisya ternata (Mexican Orange Flower). — This shrub belongs to the Natural Order Rutaceae, which includes the Orange as one of its members. It is a native of Mexico, and hardy in the Midlands, South of England, and other places where similar climatic conditions prevail. Elsewhere it may be planted against a wall or grown in a cold greenhouse. Plants in the open may be from 3 to 10 feet high ; they gi"ow into shapely bushes well clothed with branches, and need no other attention from the pruner than the checking of vigorous branches during the first two or three years, and, in later life, cutting back when outgrowing their positions. Cuttings inserted in sandy soil under glass root readily during summer, and loamy soil for general planting is suitable. The three-parted evergreen leaves are of a bright glossy green, and form a good setting for the fragrant white flowers in May. Christmas Rose. — {See Helleborus nicer.) Chrysanthemum.— By some botanical authorities the Matri- caria and Pyrethrum are now included in the genus Chrysanthemum, but it will be more convenient to refer to them under their respective names. They belong to the Daisy family (Compositae). Of Chrys- anthemums proper the list of true species is not a long one, but the garden varieties are practically endless. The most valuable kinds can be divided into four groups, namely, the annuals, which are such a dehghtful ornament of the garden during the summer months ; next, the Ox-eye section, of which Chrysanthemum maximum and its several varieties are among the best. The third group consists of the shrubby kinds, which originated from Chrysanthemum frutescens, and now, under the collective title of Marguerites, are much used for summer bedding, window-boxes, and similar purposes. The fourth, to mention, but by far the largest section, consists of florists' varieties. Included under this heading are those grown in pots and brought into the greenhouse in autumn ; they include the Japanese, Chinese, Incurved, Anemone flowered, Pompon, and others. Many of them are unsuitable for out-of-door cultivation, but of late years a good deal of attention has been directed towards the raising of early flower- io6 THE BOOK OF HARDY FLOWERS ing varieties, and the result has been so far successful that whereas the early flowered kinds of former days consisted of only a few pompons there are now numerous varieties of the Japanese section suitable for the outdoor garden, combining as they do early flowering with sturdy habit and decided colours. Early Outdoor Chrysanthemums. — Most of these early kinds are very prolific in suckers (shoots from the base), hence in most cases all that is necessary is to divide them just as they start into growth in spring. They are, moreover, as readily raised from cuttings as the ordinary florists' Chrysanthemums, therefore they can be increased to practically any extent, as rooted cuttings planted out in April will flower well. The ground should be well dug and moderately manured, taking care afterwards that the plants do not suffer from want of water, while the taJler kinds must also be supported by sticks before they fall about. After flowering the plants may, if desired, be left in the beds or border throughout the winter and protected with a few leaves or some other suitable material in the colder parts of the country. To increase a variety to as great an extent as possible, lift the roots from the open ground as soon as the flowering season is over and plant them in a frame. With this amount of protection young shoots will push up freely, and when about 2 to 3 inches high may be taken off and inserted as cuttings. They can be put into pots or boxes of sandy soil, and if kept in a closed frame for a little while will soon form roots. These early flowering Chrysanthemums may also be treated solely as hardy herbaceous plants in the open border ; that is, allowed to pass the winter without any protection. During sharp frost a few kinds may perish ; but most of them will form good clumps the second year. They should not remain undisturbed more than two seasons, or the plants get weak ; in fact, many gardeners grow them fresh from cuttings each year. A good selection of outdoor Chrysanthemums includes, of large flowered kinds : Ada, salmon-pink, gold tips ; Anita, pink ; Border Beauty, fiery orange ; Carrie, golden-yellow ; Cranford White, white ; Crimson Marie Masse, crimson ; Diana, bronze-orange ; Elstob Yellow, rich yellow ; Emily, pure white ; F^e Parisienne, rosy-mauve ; Glory of Merstham, soft pink ; Goacher's Crimson, rich crimson ; Goacher's Pink, bright pink ; Harrie, bronzy-orange ; Harvest Home, red, gold tips ; Holmes' White, white ; Horace Martin, golden-yellow ; J. Bannister, red and yellow ; Le Neva, purest white ; Leslie, butter- cup yellow ; Madame Desgranges, white ; Madame Marie Masse, lilac-mauve ; Minnie Carpenter, rich terra-cotta ; Mrs. A. Thomson, THE HARDIEST ROCK ROSE (CISTUS LADANIFERUS) CHRYSANTHEMUM 107 richest yellow ; Nellie Brown, reddish-orange ; Nina Blick, brilliant red and orange ; Norbet Purvis, golden-salmon ; Queen of Earlies, pure white ; Rabbie Burns, salmon-pink ; Rio des Jaunes, yellow ; Roi des Precoces, crimson and gold ; Ryecroft Beauty, pink ; Rye- croft Glory, bronzy-yellow ; Tapis de Neige, pure white ; Well's Crimson, crimson with golden reverse ; and Well's Primrose, pale yellow. Of early flowering Pompons good sorts are : Crimson Precocite, reddish-crimson ; Flora, golden-yellow ; Madame E. Lefort, bronzy- yellow ; Orange Pet, orange, shaded terra-cotta ; Precocity, bright yellow ; St. Croutts, pink, and White Lady, white. Early flowering Singles comprise : Ada Nice, yellow ; Blush Star, blush ; Brazier's Beauty, blush ; Canada, salmon ; Dr. Ingram, terra- cotta ; Dazzler, crimson ; Dorothy, purplish-rose ; Early Rose, pink ; Eric, bronze ; Holmthorpe, terra-cotta ; John Woolman, pink ; Joan Carter, yellow ; Joe, crimson amaranth ; Marion Bannister, white ; Merstham Beauty, rosy-pink, white zone ; Merstham Glory, crimson ; White City, white ; Ruby, ruby-red ; and W. A. Cull, brilliant red. Early flowering Chrysanthemums are of great value for cutting, for the blooms remain fresh a long time in water. Annual Chrysanthetmtms. — These are the product of the crossing and intercrossing of three distinct species, namely, coronarium, cari- natum, and segetum. The influence of coronarium is largely shown in the beautifully marked flowers of some of them, while the shorter kinds owe their dwarf stature largely to the influence of the other two species. The Chrysanthemums of this section must certainly be regarded as among the most beautiful annuals for garden decora- tion ; they continue to bloom for weeks if the old flowers are cut off as they fade. The long firm stems of the taller-growing sorts render them admirable for cutting, as they can be arranged with graceful effect. Like most annuals, these Chrysanthemums need deeply dug soil, as they flower during the summer months when periods of drought may be expected, and consequently on shallow soils they are likely to suffer. Seed may be sown in autumn or under glass in the spring for early flowering, while if sown in the open ground in April the plants will flower freely in summer. Overcrowding must be guarded against when the seed is sown, as the stronger kinds are seen at their best when the plants are about i8 inches apart. The dwarfer sorts need less space. The varieties of Annual Chrysanthemums are numer- ous, and seed from reliable sources may be depended upon to come true. The following are all good : Burridgeanum, pure white with crimson ring ; atrococcineum, deep scarlet ; carinatum, white and 108 THE BOOK OF HARDY FLOWERS crimson ; Evening Star, golden-yellow ; Lord Beaconsfield, crimson and gold ; Morning Star, sulphur, dark centre ; The Sultan, crimson- maroon ; venustum, crimson and white ; and W. E. Gladstone, crimson. Beside these there are some double flowered varieties, of which the best are the Double White and the Double Golden ; these are shorter than the preceding. Seedlings of annual Chrysanthemums, the product of seed sown in spring, may, if desired, be grown in pots, under which conditions they thrive well. Marguerites. — The different Marguerites, or shrubby Chrysanthe- mums, have originated from Chrysanthemum frutescens, native of the Canary Islands. They need protection from frost during winter, but are largely used for the embellishment of the outdoor garden in summer ; in fact, they must now be looked upon as one of the most popular of bedding plants. In conjunction with the scarlet Pelar- gonium and the blue Lobelia, they supply the popular colour arrange- ment of red, white and blue. When allowed enough space the Mar- guerites form quite large bushes which flower profusely. If grown in large pots or tubs they form handsome plants for terraces, balconies, or similar places ; in window boxes, too, they will grow and flower well. When using them for bedding out in the summer, allowance must be made for their rapid increase in size. Propagation is effected by means of cuttings, taken either late in summer or in spring. Cut- tings from plants that have been bedded out are inserted towards the end of August in well-drained pots or boxes of sandy soil. Placed in an ordinary garden frame kept closed and shaded, they will be well rooted in about a month. As soon as this happens plenty of air must be given in order to keep the plants as hardy as possible. Throughout winter they need to be kept safe from frost, while the soil should not be too damp. When the cuttings are rooted the question whether they shall be then potted off singly will depend to a great extent upon the space available. If there is ample room they will, of course, make more headway in single pots than if they are kept until spring in the original boxes or pots. In the latter case they must be potted singly as early in spring as possible. In taking the cuttings, shoots of medium vigour, about 3 inches long, rather than very strong or weak ones, should be chosen. All flowers and buds must be cut off. In the spring the growing point of the shoot should be pinched out in order to induce the formation of side shoots, for it is as bushy little specimens that Marguerites are most effective. If stock is hmited the best of the old plants may be carefully lifted in autumn and potted, the more vigorous stems and roots being shortened. For this purpose CHRYSANTHEMUM loo the pots should not be too large, as if small ones are used it admits of the plants being repotted in spring before bedding out. In growing Marguerites a sharp look-out must be kept for a very troublesome pest, namely, the leaf-mining maggot. This burrows through the leaf substance and leaves disfiguring white marks ; it may be killed by a squeeze between finger and thumb directly it is noticed. Syringing the leaves with tar water tends to prevent its appearance, while if the plants are under glass fumigating with Auto Shreds is advised. Big bushes in rather small pots should have frequent doses of liquid manure, or one of the many plant stimulants now much used. There are several varieties of Marguerite, some with single and others with double or semi-double flowers. There have been several semi-double kinds, but they are all now superseded by the variety Mrs. F. Sander, which has a raised Anemone-like centre. Ox-eye Daisies. — Of the Ox-eye section of Chrysanthemums by far the finest is maximum, a native of Spain and Portugal. The typical kind may be compared with our native Ox-eye (Chrysan- themum Leucanthemum), but is altogether a more vigorous plant, while the flowers are much larger. There are several varieties of Chr37santhemum maximum in cultivation ; the blossoms of some are exceedingly large, sometimes 6 inches in diameter on vigorous plants. In height they vary from 2 to 3 feet. The best are : Duchess of Abercorn, dwarf, with the tips of the florets serrated ; King Edward VII., the largest of all, and one of the most vigorous, reaching fully 3 feet in height ; Mrs. Charles Lowthian Bell, a fine large bloom ; Progress, the dwarfest of all with semi-double flowers ; Rev. H. Saunders, of strong growth, with extra broad florets to the large flowers ; robinsoniana, remarkable for its laciniated florets ; Triumph, a very fine border kind of vigorous growth ; Tunstall, the florets of which reflex in a particularly graceful manner ; and Wynyard, of compact habit, with large, bold, regularly shaped blossoms. These are among the finest of border flowers ; if the old flowers are cut off as they fade the season of blooming extends from early summer until autumn. Wlien treated liberally few plants yield so liberal a return in blossom. They form large clumps, and the shoots in the centre are apt to get starved unless the plants are divided at least once in three years, while some prefer to treat them in this way annually. On lifting them it will be found that the newer shoots which have formed on the outside of the clump, where they get fresh soil and more light and air, are the strongest, and in replanting these should be selected. The soil ought to be well dug and manured before replanting; no THE BOOK OF HARDY FLOWERS The leaves of Chrysanthemum maximum are somewhat hable to be attacked by the leaf-mining grub referred to in the notes on the Marguerites. Other Chrysanthemums that may be especially referred to are : alpinum, a neat little plant about 3 inches high, with rather large white flowers ; argenteum, an alpine species 12 inches or so high, with silvery leaves and pale yellow blossoms ; Leucanthemum, the Ox-eye or Horse Daisy of our fields, well known everywhere ; Leucanthemum semi-duplex, a variety with semi-double flowers ; nipponicum, a shrubby species from Japan, with Marguerite-hke flowers in late summer and autumn, somewhat tender. The last to mention is a particularly valuable one, namely, Chrysanthemum uliginosum (Pyrethrum uhginosum), a native of Eastern Europe, and of bold, free growth, reaching a height of 5 or 6 feet. The large Ox- eye-like flowers are borne in great profusion in early autumn. This Chrysanthemum is well suited for planting in the back row of the herbaceous border. Those suited to the rock garden need gritty, well-drained soil and a sunny spot. Chrysogonum virginicum [Golden Knee). — The bright yellow flowers of this low-growing perennial, which belongs to the Daisy family (Compositae), are produced for a considerable period through- out the summer months. It is a desirable plant for the rock garden or front of the herbaceous border, and can be readily increased by division, carried out at any time during the dormant season. It thrives in ordinary soil, and is native of North America. Cichorium Intybus [Chicory or Succory). — This well-known plant, native of Europe, grown chiefly for its economic value, is really worthy of a place in the herbaceous border, though the flowers are open only in the morning. It reaches a height of 4 to 5 feet, and from the much-branched stems a succession of blossoms is kept up for some time in summer ; they are more than i inch across, and of clear blue colour. The Chicory, which belongs to the Daisy family (Compositae), can be readily increased by root cuttings, dug up in winter, cut into lengths of about 3 inches, and buried some 3 inches deep in well-drained sandy soil. Cimicifuga [Bughane). — The Cimicifugas are an ornamental race of hardy herbaceous perennials, natives of North America, China, and Japan, and members of the Buttercup family (Ranunculaceae). They vary in height from 3 to 4 feet or thereabouts, and have long, terminal, feathery racemes of white or whitish flowers. All these plants can be increased by division when dormant, and thrive in ordinary garden soil, especially if it is somewhat moist. The best BORDER CHRYSANTHEMUM DIANA CINERARIA III known are : americana, which flowers in August and September ; cordifoHa, with heart-shaped leaves ; davurica, a distinct species from China, the racemes being of a particularly " feathery " char- acter ; foetida (simplex^, the only European kind ; japonica, remark- able for its handsome lobed leaves, black shining stems, and white flowers ; racemosa, with much-divided leaves and twisted flower racemes in August. Those of which the flowering season is not named bloom in July. Cineraria. — By botanists Cineraria, which belongs to the Daisy family (Compositae), is now merged into that of Senecio, but as Cinerarias these plants are universally grown. With one excep- tion they are used only for greenhouse decoration : maritima is largely employed for bedding out during the summer months. For this purpose seed is sown in early spring, in pans or boxes of light sandy soil, the seedlings being pricked off when large enough to handle. If potted singly when sufliciently advanced, they will attain an effec- tive size by bedding-out time. The attractive feature of maritima is the silvery tint of the prettily divided leaves, owing to which it is much used as a foil to brilliantly coloured flowers. Cinquefoil. — (See PoTENTlLLA.) Cistus (Rock Rose). — Very free-flowering shrubs, belonging to the Natural Order Cistaceae, suitable for planting in dry soil in sunny positions. The majority are natives of the various parts of the Medi- terranean region, some coming from rather warm countries. All are not hardy, and those unfitted for out-of-doors are of little use for the greenhouse. As a rule, they are of rapid growth, but it is a mis- take to plant them in rich soil in order to induce them to grow quickly. It is preferable to try and keep them short- jointed and sturdy, for such plants not only withstand cold weather better, but flower more profusely. They are increased by seeds sown in spring or by cuttings inserted in pots of sandy soil in a closed frame during summer. In either case it is necessary to keep the young plants in pots until they can be placed in permanent positions, for they transplant very badly from borders. Cistuses are essentially sun-loving plants, therefore choose an open place either on a bank or about the rockery for prefer- ence. Excellent results are sometimes obtained by planting them in large masses on rocky hillsides. Pruning is confined to stopping the shoots of young plants and removing the old flower-heads from older specimens. The chief kinds are : albidus, 2 to 3 feet, flowers, rosy-lilac, leaves whitish ; corbariensis, i to 2 feet, white ; crispus, 3 to 4 feet, grey leaves, rose ; cyprius, 2 to 4 feet, white with red blotch, one of the best ; florentinus, 2 feet, white ; ladaniferus, 3 to 4 feet, 112 THE BOOK OF HARDY FLOWERS white with red blotch ; laurifoHus, 4 to 6 feet, white, the hardiest of all ; Loretii, 4 feet, white with dark blotches ; Monspehensis, 2 feet, white ; purpureus, 3 feet, purple ; salvifolius, 3 feet, red ; villosus, 3 feet, rose. All bloom in summer. Cladrastis {Yellow Wood). — Two hardy species of this group, which belongs to the Pea family (Leguminosae), are in cultivation, Amurensis from Amurland, and tinctoria from the United States ; there is also a variety of the former species called Buergeri. The Asiatic kind forms a bush or low tree of little decorative worth, but the other is a much larger tree, sometimes attaining a height of 30 or 40 feet with a considerable spread, and more ornamental by reason of its handsome pinnate leaves and long, Laburnum-hke inflorescences of white flowers in July. It requires plenty of sun and loamy soil. Propagation is by seeds, and pruning is unnecessary except for training purposes, when the trees are young. The timber is peculiar by reason of its deep yellow colour from which the common name of Yellow Wood is derived. It is used as a dye. Cladrastis Amurensis is now usually called Maackia Amurensis. Clarkia. — Of late years the different Clarkias, which belong to the Evening Primrose family (Onagraceae) and are natives of Western North America, have become one of the most popular annual flowers, a fact that need occasion no surprise, as the improved forms are showy and distinct from other plants of annual duration. There are three species in cultivation, namely, elegans, pulchella, and rhomboidea. It is from the two first-named that the garden varieties of the present day have sprung, as rhomboidea with small purple blossoms is less ornamental. When in good soil and with space allowed for their development, Clarkias will reach a height of 2^ to 3 feet, and flower profusely over a long period. They are hardy annuals ; that is to say, seed may be sown out-of-doors in autumn to flower early the following season, and in spring to produce summer bloom. In this way a succession may be maintained, if care is taken to cut off the old flowers as they fade. Clarkias produce seed very freely, and seeding puts a stop to flowering. Apart from their beauty in the open ground, the Clarkias are also of great value for cutting, the colours of some of them look particularly well under artificial light. Some of the improved varieties have single and others double blossoms. Of the latter the leading sorts are : Brilliant Princess, glowing rose ; Firefly, scarlet-crimson ; Purple King, purple ; Salmon Queen, bright sahnon ; Scarlet King, scarlet, and White Prince, pure white. The single varieties, though very showy, are not so numerous as the double ones. When sowing Clarkias, do not allow them to be crowded. CLAYTONIA 113 Claytonia {Spring Beauty). — ^The Claytonias are pretty spring- flowering plants chiefly with tuberous roots, and belong to the Natural Order Portulaceae. They are natives of the northern regions of both hemispheres, thrive best in a moist soil, and can be readily increased by means of seeds. The chief species are caroliniana, some 9 inches high, that bears a profusion of bright rose-coloured blossoms from April to June ; a good deal similar is sibirica, while virginica, rather shorter, has pure white flowers. Claytonias are suitable for the moist part of the rockery. Particular interest is attached to an annual species, Claytonia perfoliata, not from any beauty it possesses, but from the fact that, though a native of North America, it some years ago overran the market gardens in the neigh- bourhood of London as a weed. Clematis. — This group consists of shrubby and herbaceous climbers and sub-shrubby and ordinary herbaceous plants, belonging to the Buttercup family (Ranunculaceae). The majority are of a showy character and invaluable for garden adornment, whilst others are useful additions to the wild garden. One species, Vitalba, the Traveller's Joy or Old Man's Beard, is a native of the British Isles, and is found in copses and hedgerows in many directions. The other kinds have a wide distribution, some being found in Europe, others in Asia, America, New Zealand, Australia, and Africa. With a few exceptions, the hardier kinds are the more ornamental, and those requiring a warm greenhouse are given little attention. The soil most suitable for Clematises is deep, rich loam, which contains lime. Propagation is effected in various ways. Thus the species may be raised from seeds or cuttings, and the garden varieties from cuttings, layers, or grafts. The grafts are usually placed upon sections of root of Clematis Vitalba, but grafting should only be practised when other methods fail. Pruning requires a considerable amount of care, for some kinds bloom on shoots of the previous year, and others on the current year's growths. Thus the garden varieties are included in five distinct groups under the following headings : Florida, Patens, Lanuginosa, Jackmani, and Viticella. In the cases of the two first-named, the flowers are borne from the previous year's shoots, and any necessary pruning — which is usually very little — must be reserved until after the flowers are over in June. The others, however, blossom on the current year's stems, and require cutting back severely in February. If not cut back, these kinds become very bare about the base, and the upper parts appear as a mass of tangled shoots. The true species, or wild types, require similar treatment ; those like montana and alpina, I 114 THE BOOK OF HARDY FLOWERS which bloom from old stems, must not be pruned until after the flowers have fallen, whereas autumn or late summer flowering kinds, such as Flammula and orientalis, may be pruned in spring. The herbaceous Clematises must be cut over in the ordinary way and the clumps divided in autumn when necessary. An evergreen species, from New Zealand, indivisa, is too tender for outdoor cultivation except in the warmer counties, where its plentiful white star-like flowers make a wonderful display, but it may be grown m a cool and airy greenhouse with considerable success, either on rafters or pillars or in pots, on trellises or trained round stakes. The following is a selection of garden varieties. All these should have their roots and the lower parts of their stems shielded from bright sun : Florida Group. — Belle of Woking, double, silver-grey ; Countess of Lovelace, double, bluish-lilac ; Duchess of Edinburgh, double, white ; John Gould Veitch, lavender ; Venus Victrix, lavender. Patens Group. — Albert Victor, lavender ; Fair Rosamond, white ; Lady Londesborough, silver-grey ; Marcel Moser, white ; Nellie Moser, blush white with red bars ; The Queen, mauve. Lanuginosa Group. — ^Anderson Henryi, creamy-white ; Beauty of Worcester, violet ; Duchess of Teck, white ; Fairy Queen, flesh ; Empress Eugdnie, white ; Gloire de St. Julien, white ; La France, violet-purple ; Sensation, mauve. Jackmani Group. — Alexandra, violet ; Earl of Beaconsfield, pur- ple ; Jackmani alba, white ; rubra, red ; Snow White, white ; supcrba, purple ; Madame Baron- Veillard, rose ; Madame Edouard Andre, red ; Star of India, purple with reddish bars. Viticella Group. — Ascotensis, blue ; Lady Bovill, blue ; Madame Grange, crimson-violet ; Madame Thibaut, lilac ; Thomas Moore, violet ; Viticel'a alba, white ; grandiflora, red. The following are the chief species : alpina, 8 to 12 feet, mauve, blue, white, or red, April ; campaniflora, at least 15 feet, white and mauve, summer ; calycina, evergreen, cream or white, winter ; Flam- mula, 15 to 18 feet, white, fragrant, August, var. rubro-marginata, has red margins to the flowers ; heracleaefolia, a sub-shrubby kind from China, bearing large quantities of tubular blue flowers in July and August — improved varieties are Davidiana and Lavallei ; in- divisa, an evergreen, tender kind from New Zealand, bearing white flowers in spring ; montana, one of the best of the Chinese kinds, grows quite 20 feet high, and bears white flowers freely in May — the var. rubens has red flowers. Orientalis is an Oriental kind, bearing small yellow flowers during late summer— the var. tangutica is better THE MOUNTAIN CLEMATIS (CLEMATIS MONTANA) PAMPAS GRASS (CORTADERIA ARGENTEA) A HARDY CYCLAMEN (CYCLAMEN REPANDUM) CLEMATIS NELLIE MOSER ON WALL TRELLIS CLERODENDRON 115 than the type ; Pitcheri is an ornamental sum- mer - flowering species from Colorado. Amongst the herbace- ous kinds, recta, with white flowers ; coccinea, with scarlet blooms ; and integrifolia, with purple blossoms, should be grown. Clerodendron. — This group (Natural Order Verbenaceae ) con- tains numerous tropical, and a few temperate, shrubs. The hardier kinds are natives of China and Japan, whilst the others are found in the West Indies, clematis heracleaekolia India, Africa, the Ma- laya, Australia, and other countries. The hardy Clerodendrons re- quire sunny positions, and are better adapted to the southern than to the northern counties. They thrive in light, well-drained loam, and are increased by root cuttings placed in sandy soil under glass in spring. Sections of root as thick as a lead-pencil may be cut in lengths of 4 inches for the purpose. Clerodendron foetidum may be cut down to the ground each year ; in other cases pruning is confined to the removal of dead wood. The best hardy kinds are : foetidum, 3 to 4 feet, China, flowers red, August ; Fargesii, 6 to 10 feet, China, flowers white, fragrant, August ; trichotomum, 10 to 15 feet, China and Japan, flowers white, fragrant, August and September. There are numerous tender kinds which require a warm green- house temperature. Some are climbers, others bushes. Clethra. — .The Clethras, which belong to the Heather family (Ericaceae), comprise several deciduous shrubs from North America, one from China and Japan, and an evergreen kind from Madeira. The American kinds, acuminata and alnifoha, are the hardiest. They succeed in moist, peaty soil, form bushes 2 to 4 feet high, and bear a profusion of clusters of fragrant white flowers during August. There are several varieties of alnifoha, those called Michauxii and paniculata ii6 THE BOOK OF HARDY FLOWERS being especiaJly worthy of note. The Asiatic kind, canesccns, is an upright bush, 4 feet high, which bears fragrant white flowers in autumn. It is not very hardy when young. All the pruning required is the removal of the flower-heads. Clethra arborea from Madeira is a very different plant. Of vigorous habit, it forms a shapely bush, 12 to 15 feet high with handsome dark evergreen leaves, and bears large clusters of white bell-shaped flowers, from which the common name of Lily of the Valley Tree has arisen. Except in the warmer counties, it roust be grown in a cool greenhouse. Equal parts of loam and peat form a suitable compost ; prune after flowering when any shaping is required, otherwise simply remove the flower-heads. Climbing Fumitory. — (See Adlumia.) Clinton la. — A small genus of plants belonging to the Lily family (Liliaceae), and natives chiefly of North America. They are but rarely met with in gardens, though they are fully entitled to more attention than is usually bestowed upon them. For their successful treatment they need a moist, peaty soil in a partially-shaded spot, and can be increased by division in spring. The species are andrew- siana, which reaches a height of 2 feet and bears drooping, bell-shaped, rose-coloured blossoms in umbels ; this flowers in May and June, so, too, does borealis, but this only reaches a height of about 6 inches, and the flowers are yellow. In Clintonia umbellata, which is also only some 6 inches high, the blossoms are whitish. A distinct feature of uniflora is that the stem is, as a rule, one-flowered, though occa- sionally two (white) blooms are produced. Cnicus (Horse Thistle). — An extensive group (Natural Order Compositae), many of the kinds being classed by different authorities under various names. The majority of them are but weeds. Perhaps the best of all — and that is only fit for the wild garden — is heterophyllus, that reaches a height of 4 to 6 feet, and bears large heads of purple flowers. It will grow in almost any soil. Cobaea scandens. — A rapid-growing climbing plant, native of Mexico, and belonging to the same Natural Order as Jacob's Ladder (Polemoniaceae). For its full development, a large greenhouse or conservatory is necessary. It is, however, often used for beds in the outdoor garden in summer, for if the seed is sown in warmth early in the spring the young plants will grow freely, and in late May can be safely planted out. If put into some fairly light, moderately rich soil, they will make rapid headway and cover a considerable space of trellis or other support by the latter part of the summer. At that time the large purple bell-shaped flowers open, and a succession is kept up until frost puts in an appearance. The Cobaea has woody CODONOPSIS 117 stems, and should it survive the winter, vi'hich is not hkely except in especially favoured spots, it will grow freely the next year. Cockscomb. — {See Celosia cristata.) Codonopsis. — Herbaceous perennials, that bear bell-shaped blos- soms on a climbing stem during summer. They belong to the Bell- flower family (Campanulaceae), and are natives of the Himalaya, China, and Japan. The chief species are : clematidea, which reaches a height of 2 feet, and bears whitish flowers marked with purple ; lanceolata, with tuberous root, flowers pale lilac without and violet within ; ovata, soft grey-blue ; and rotundifolia, with purple flowers veined with yellow. They thrive best in a fairly cool, moist, though well-drained spot in ordinary soil, and are an interesting and orna- mental class of plants. Coix lachryma {Job's Tears). — An ornamental Grass (Natural Order Gramineae), native of tropical Asia, and suitable only for planting out-of-doors for the summer months. The seeds, which are very hard, and about the size of a Cherry-stone, are sown in warmth in February, and the young plants put out in good soil in a sunny spot, late in May or early June. This Grass will then form a dense tuft, 3 feet or more in height, and bear half-drooping clusters of its pretty seeds, to which the popular name of Job's Tears is appHed. The seeds are of bluish-white tint, and have a polished surface like that of porcelain, and are much used for beads, especially in the making of rosaries, etc. As they are so hard, it is a good plan to soak them in warm water for twenty-four hours before sowing. Colchicum {Meadow Saffron). — The different species of Colchicum are of wide geographical distribution in Asia and Europe. They belong to the Lily family (Liliaceae). A second popular name. Autumn Crocus, has been given them, firstly owing to their general resemblance to a Crocus, and secondly from the fact that most of them flower in autumn. Colchicums need a sandy, loamy soil, and the bulbs are planted in July and August. Though the autumn Colchicums pro- duce their flowers at that season, the leaves do not appear until spring ; for this reason the bulbs are often planted in grass, which serves to protect them from rough winds and heavy rains during their flowering period and provide a setting for the flowers. They may also be planted in the front of a border, disposed in irregular-shaped clumps, preferably among some tufted evergreens. In planting Colchicum the top of the bulb or corm, as it is more correctly termed, should be about 3 inches below the surface of the soil. There are many species and varieties, some of which closely resemble each other. A selection of the best includes ; autumnale, purple ; autumnale album, white ; ii8 THE BOOK OF HARDY FLOWERS autumnale album plenum, double white ; autumnale roseum plenum, double rose; Bornmulleri, lilac, white centre; byzantinum. soft mauve, feathered with white ; giganteum, dark lilac ; Parkinsonii, rose-purple and white, chequered in a strange manner ; speciosum, the largest of all, rose-purple ; speciosum album, pure white ; and variegatum, chequered after the manner of Parkinsonii. Quite a miniature kind is crociflorum, which does not bloom until spring ; the flowers are white, lined with violet. Colletia cru. ciata is an extra- ordinary shrub belonging to the Natural Order Rhamnaceae. It is a native of Uru- guay, and is pecu- liar by reason of its branches being armed with fero- cious spines among which the small leaves are not very evident. The spines differ widely on different plants, sometimes being long and moderately slender, and at others being considerably thickened near the base, forming almost a part of the branch system. The small red and brown flowers are borne freely in April, after the bushes have attained full size. Plant in loamy soil in the southern counties. No pruning is required. Collinsia. — Pretty free-flowering hardy annuals, native princi- pally of California, and belonging to the Snapdragon family (Scrophu- lariaceae). They thrive in any good garden soil. The seed may be sown out-of-doors either in autumn for spring bloom, or in spring for summer flowers. Most of them grow about 12 inches high, and the flowers are borne in whorls along the greater part of the shoots. The principal species are bartisaefolia, purple and white ; bicolor, white, rosy-purple lip ; bicolor candidissima, white ; corymbosa, white MEADOW SAFFRON (Colchicum autumnale album) COLLOMIA 119 and blue ; grandiflora, purplish-blue ; parvifiora, blue and purple ; and verna, white, blue lip. The last-named should be sown in autumn, as it is at its best in spring. Collomia. — Hardy annuals belonging to the Natural Order Pole- moniaceae, and native chiefly of North- West America. All are quite hardy ; that is to say, they may be sown in autumn to stand the winter, and flower in spring and early summer, or in April to bloom later on. They grow about 18 inches high, and the flowers are dis- posed in dense heads. All of them do well in ordinary garden soil, in a sunny spot. The principal species are coccinea, deep red ; grandi- flora, reddish-yellow ; heterophylla, purple ; and linearis, reddish- brown. Columbine. — {See Aquilegia.) Colutea {Bladder Senna). — Hardy shrubs belonging to the Pea family (Leguminosae), natives of the Mediterranean region and Asia Minor. They form bushes 3 to 8 feet high, with pinnate leaves and golden or brownish flowers which are followed by curious, inflated, parchment-like pods, from which the common name of Bladder Senna has arisen. They are grown in ordinary garden soil, are usually increased by seeds, and are often allowed to grow 2 or 3 feet in height with several branches from the base, and are then cut back each year to within an inch or so of the base of the previous year's wood. The best flowers are produced by this method, though regular pruning is not absolutely necessary. The chief sorts are : arborescens, Common Bladder Senna, flowers golden, June ; cilicia, Asia Minor, yellow ; cruenta. Orient, brown or reddish-brown ; longialata, Asia Minor, yellow. Commelina. — An extensive group (Natural Order Commelinaceae) containing nearly a hundred kinds, most of which are tropical weeds, and are therefore unsuitable for outdoor cultivation in this country. In light, warm soils and a sunny spot, one sort, caelestis, forms a very pleasing feature in the outdoor garden during summer, for it blooms over a lengthened period. It forms a tuberous root, from which arise green stems to a height of 18 inches. The stems are clothed with bright green, oblong, lanceolate leaves, and the flowers, several of which are enclosed within a large shell-like bract on the points of the shoots, are of a delightful shade of light blue. They only last for a single day, but a succession is kept up for a long time. Commelinas are hardy only in light, warm soil, but, where there is any risk of their surviving the winter, the tuberous roots may be readily lifted and stored in the same manner as Dahlias. They are readily increased by seeds, which should be sown out-of-doors in a warm spot in April. So freely are 120 THE BOOK OF HARDY FLOWERS the seeds produced, that where the conditions are favourable seedlings come up like weeds. The old plants that survive the winter out-of- doors, or are stored safe from frost and planted out in spring, are more effective than seedlings of the first year. Conandron. — This hardy plant, which belongs to the same family as the Gloxinia (Gesneraceae), and is native of Japan, forms a tuft of dark green leaves, very suggestive of those of Ramondia, and bears in summer, on stems about 6 inches high, pale lilac flowers with purple centre. It is a plant for which a suitable spot in the rock garden must be chosen. The best conditions are a fairly moist, yet well- drained, shady chink between two stones, and a soil of loam, peat, and sand. Cone Flower. — {See Rudbeckia.) Convallaria majalis {Lily of the Valley). — By some authorities the Solomon's Seal is included in the genus Convallaria, but it is now generally known as Polygonatum. The Lily of the Valley, which belongs to the Lily family (Liliaceae), and is found wild in north tem- perate regions, is a universal favourite ; it will flourish in practically every garden if some care is taken in planting. If an old-established bed of Lily of the Valley is examined it will be found to consist of a dense mat-like mass of underground stems and roots with a consider- able number of buds, or crowns, as they are usually termed. In time, when these get overcrowded, the flowers become poor, and then the bed should be replanted, selecting for the purpose a fresh spot if possible. The ground must be well dug, and a liberal amount of leaf-mould and decayed manure mixed in. The old clumps are divided up into portions each containing two or three crowns, which are replanted about 3 inches apart over the surface of the bed, which may be in a partially-shaded spot. The work of dividing and re- planting is done in winter, when the plants are dormant, and care must must be taken that they do not suffer from want of water after- wards. Top-dressing the bed in autumn with a mixture of loam, leaf-mould, and manure, the whole being passed through a ^-inch sieve, often improves the plants considerably, and gives them a new lease of life. In picking flowers the spike should be pulled out, as in this way a greater length of stem is obtained. There are several varieties of Lily of the Valley that differ in a more or less marked manner from the common kind. Included among them are flore pleno, with double flowers ; prolificans, in which the segments are more spreading than usual ; rosea, with blossoms of pinkish tinge, and variegata, with variegated leaves. Besides these we have what are termed Berlin crowns, so much used for forcing, the individual CONVOLVULUS 121 flowers being very widely expanded ; and Fontin's variety, of vigorous growth and bearing large blooms. This last-named is particularly effective in a bed or clump. Convolvulus (Bindweed). — Many of the perennial Bindweeds (Natural Order Convolvulaceae) are decidedly ornamental, but a disadvantage of some of them lies in the creeping roots, which encroach on neighbouring plants. Chief among them are althaeoides, a lovely little creeping plant with rosy-pink flowers, produced throughout the summer ; it is often recommended for the rock garden, but it spreads rapidly, and should not be put near choice plants. Convolvulus arvensis (Small Bindweed) is, though pretty, one of the worst weeds of the garden ; Cneorum, quite a httle bush, clothed with silvery leaves and in early summer sprinkled with pretty pink blossoms, is hardy only in warm districts ; it is a native of the South of Europe, mauritanicus is another somewhat tender kind, of creeping habit, and when grown in a suspended basket it is very attractive ; the flowers are blue, and borne from June till the autumn. In warm gardens, it is a desirable plant for the rockery. Rather light, sandy soil is suitable for the choicer kinds. Annual Convolvulus. — The best of these are selected forms of two species, namely, tricolor, more generally known as minor, and major, which is also known as Ipomoea purpurea. Of the last-named, seed may be sown out-of-doors late in April, and the plants so obtained will bloom during summer. If a frame or greenhouse is available seeds may be sown in pots in March, and the seedlings planted out in May. These flower earlier than when the seed is sown out-of-doors. This Convolvulus, which is a rapid climber, is admirably adapted for growing in boxes, for placing near the window or balcony, or an arch, round which the stems may grow. A sunny spot suits the plants, as they are seen at their best during bright sunshine. The flowers are of shades of blue and purple, while there are also rose, crim- son, and striped kinds. The dwarf Convolvulus tricolor, more generally ^^^^ ^^ ^^^ ^^^^^^ known as minor, also has flowers of (convaiiaria majaiis) 122 THE BOOK OF HARDY FLOWERS similar shade of colour, though many of them have a yellow centre. The blossoms of Convolvulus do not last long, but a succession is kept up throughout the summer. A well-dug, but not rich, soil and a sunny spot meet their needs. Seed may be sown in autumn or spring, as the plants are hardy. Coptis. — Hardy perennials, growing from 6 to 12 inches in height, belonging to the Buttercup family (Ranunculaceae), and natives of the Northern Hemisphere. They succeed best in a moist, peaty soil, and are well suited for small bog gardens. The best known are occidentalis, with trifoliate leaves and white Ranunculus-hke flowers, in May and June ; orientahs, leaves pinnate, with deeply cut lobes and white flowers, usually borne three together on a stem ; and tri- folia, with trifoliate leaves and small white flowers, borne singly from April to July. Cordyiine. — Most of the CordyHnes, which belong to the Lily family (Liliaceae), are hothouse plants, the only one that is useful for outdoor planting being australis, a native of New Zealand. It forms an upright stem, which, in old plants, is crowned with long, strap-shaped, arching leaves. In the warmer parts of England and in Ireland this Cordyiine attains quite tree-like dimensions, while as a smaller plant it is commonly used in summer bedding, chiefly as a " dot " plant in formal flower beds ; larger specimens, in tubs or pots, are plunged in the turf of the lawn, especially where a sub-tropical effect is aimed at. When the plants need repotting, it should be done in spring, a suitable compost being made up of a mixture of loam, peat and sand. Increase is by seed, which sometimes ripens in this country, in addition to which considerable numbers are sent here from New Zealand ; it is sown as soon as possible after receipt, in the greenhouse. When large enough the young plants are put singly in small pots and repotted as becomes necessary. Cordyiine australis is sometimes known as Dracaena australis and Dracaena indivisa, but the last name is rightly applied to a totally different kind. Coreopsis {Tickseed).— Showy annuals and perennials, chiefly natives of North America, members of the Daisy family (Compositae). They are known also as Calliopsis. The annual kinds, which grow from I foot to 3 feet in height, are exceedingly beautiful. The flowers are on long wiry stems, and are admirable for cutting. They vary in colour from yellow to deep crimson or brown, and in many of them these colours are blended in varied and striking fashion. The annual kinds may be sown either in autumn or spring ; for autumn sowing out- of-doors light, well-drained soil must be chosen. From seed sown in the open ground in April the young plants make rapid headway, and A GOLDEN-LEAVED CYPRESS (CUPRESSUS LAWSONIANA LUTEA) CORNUS 123 soon reach flowering size. Well-grown plants branch out freely, hence care must be taken that they are not overcrowded. Of the perennial kinds may be especially mentioned : auriculata, yellow with dark zone ; grandiflora, flowers 2| inches across, of bright golden-yellow ; Eldorado, an improved form of grandiflora ; lanceo- lata, rich yellow ; palmata, yellow ; rosea, about 12 inches high, pink flowers ; and verticillata, yellow, an upright-growing plant, of which the leaves, disposed in whorls, are much divided. All, except rosea, have rich yellow flowers, and reach a height of 18 inches to 2 feet ; they bloom throughout the greater part of the summer, and are of great service for cutting. They may be increased by division, carried out in the new year, before they start into growth, and will thrive in any good garden soil. In the herbaceous border they form a very attractive feature. Coreopsis grandiflora is only a biennial in many gardens and dies after flowering, hence it must be raised from seed each May to bloom the following year, Cork Oak. — {See Quercus.) Corn Flag. — {See Gladiolus.) Cornflower. — {See Centaurea.) Cornus {Dogwood). — This group (Natural Order Cornaceae) is made up of a considerable number of hardy shrubs, commonly called Dogwoods, which vary as much in appearance as in their garden value. They are widely distributed in Europe, North Asia, and North America. In some instances the decorative qualities are limited to showy bark, in other cases variegated foliage is the attraction, whilst some are grown for their beautiful flowers. Except that a few are tender and their planting is restricted to sunny positions in the warmer parts of the country, the Cornus give little trouble, for they thrive in any good garden soil. Propagation is by seeds, layers or cuttings of the ripened wood inserted out-of-doors during autumn or winter. Those kinds which have decorative bark are often cut down to the ground annually or biennially in March. By this means the richest colour is secured. Otherwise an occasional thinning is all that is necessary. The following form a selection of the best kinds : alba, an Asiatic species with bright red bark, the var. Spaethii is probably the best of all the golden variegated shrubs, and variegata is a very useful plant, with silver variegated leaves ; Baileyi is a red-barked shrub from North America ; florida, the flowering Dogwood of Eastern North America, is very showy by reason of the white, or sometimes red, bracts which surround the flower-heads — it must have a sunny spot ; macrophylla is a handsome tree-like kind from North India, China, 124 THE BOOK OF HARDY FLOWERS and Japan, its large blue-green leaves and heads of cream flowers are attractive ; Mas is the Common Dogwood, Cornelian Cherry, or Cornel of our hedgerows, it forms a large bush up to 20 feet high, and bears bright yellow flowers during February and March — there are several useful varieties with variegated leaves ; Nuttallii, one of the more tender kinds, is from California, its attractions are the large, white bracts surrounding the flower-heads, and the rich autumnal colouring of the leaves ; stolonifera, from North America, has bright red bark, and the var. flaviramea, golden bark. Corokia Cotoneaster is the most useful kind in this group, which belongs to the Dogwood family (Cornaceae). It is a curious and showy shrub from New Zealand, suitable for a position against a south or west wall in the South of England, or in some parts it may be grown in the open. Grown naturally, it forms a dense bush of thin, wiry, tortuous shoots, clothed with small, spoon-shaped, dark green leaves, and in May or June bears a profusion of star-shaped golden blossoms. As a bush it requires no regular pruning. Against a wall sufficient pruning must be given after flowering to keep it in place. Scarlet fruits sometimes ripen on plants against a wall. Ordinary garden soil is suitable, and increase is by means of cuttings. Coronilla. — A group of plants belonging to the Pea family (Leguminosae), principally natives of Southern Europe, and com- posed of herbaceous perennials and shrubs. Most of them need a light, well-drained soil in a sunny spot. The herbaceous kinds are increased by seeds, and the shrubby kinds by cuttings put in sandy soil in a close and shaded frame in August. The chief species are : cappadocica, a pretty little trailing plant, suitable for the rock garden, the yellow Pea-shaped blossoms appear during July and August ; coronata, of half- shrubby character, 2 feet high, bears yellow flowers in umbels in July and August ; elegans is a trailing kind with pinkish- white blossoms from July to October, it thrives well on old walls ; Emerus is a hardy deciduous shrub, reaching a height of 4 to 5 feet, and bearing yellow Pea-shaped flowers in spring ; glauca is an ever- green species, hardy in the milder parts of the country, but in others requiring greenhouse protection, it bears a profusion of light yellow flowers ; varia bears pink Pea-shaped blossoms, borne from June to autumn, it reaches the height of 2 feet, and will thrive in dry, sandy soil. Cortaderia [Pampas Grass). — The genus Cortaderia (Natural Order Gramineae) is but a small one, but contains some of the most ornamental of all hardy grasses. The best known is the Pampas Grass, Cortaderia argentea, which used to be known, and is still usually CORYDALIS 125 met with in gardens, as Gynerium argenteum. It forms a handsome mass of gracefully recurving leaves, and late in summer, or more often in autumn, the large plume-like heads of silvery white flowers appear. As an isolated specimen on the lawn the Pampas Grass is most striking. The popular name is derived from the fact that the plant is a native of the open Pampas of South America. If the large plumes are cut while they are still in good condition and hung up in an airy room to dry, they are of great service for decorative purposes during winter. Under cultivation different forms of the Pampas Grass have been obtained ; the var. nanum is characterised by dwarfer growth, while the flower-heads develop sooner than those of the typical kind. In some districts this is an advantage, as the inflorescences of the ordinary one are sometimes injured by frosts. There is a variety of which the flower plumes are of pink shade, known as carneum, Rendatlerii, and Roi des Roses ; there appears to be little if any difference between them. Cortaderia conspicua, from New Zealand, resembles the Pampas Grass, but is smaller and more slender in growth, while its plumes develop a little earlier ; this used to be known as Arundo conspicua. The third to mention is a very scarce and little-known species, namely jubata, with flower panicles of pale straw tint suffused with purple ; the inflorescences are branching, and well overtop the long, narrow drooping leaves. Before planting Cortaderia, the ground must be deeply dug, well-decayed manure being freely mixed in. A sheltered spot should be chosen, so that the plumes may not be damaged by strong wind. Corydalis (Fumitory). — An extensive group (Natural Order Fumariaceae), chiefly hardy herbaceous perennials, most of which are easily grown ; many are well suited to the rock garden, preferring light soil. They are often grown in an old wall, and will cover a rough bank attractively. They are natives of the temperate regions of the globe, several new kinds having recently been imported from China. The flowers, which are in terminal spikes or heads, are usually of a somewhat tubular shape with a prominent lip, and often attended by large leaf-like bracts. Many of the Fumitories are attractive by reason of their prettily divided leaves, often of glaucous tint. The average height is about 12 inches. A selection of the best comprises : bracteata, yellow, May and June ; bulbosa, pale pink, April and May ; cheilanthifolia, fern-like leaves and yellow flowers from spring until autumn ; lutea, yellow flowers nearly throughout the year, fern-like foliage, very useful for old walls ; nobilis, yellow flowers with dark centre and prettily cut leaves ; this needs a fairly moist soil in a shady spot. In Corydalis thalictrifoHa the pale green leaves are very 126 THE BOOK OF HARDY FLOWERS finely divided, and the yellow flowers profusely borne throughout the summer months ; this is one of the most ornamental, but being some- what tender it requires a sheltered, well-drained position on the rock garden ; a little-known Chinese species is Wilsonii, with glaucous, fern-like leaves and bright yellow flowers. There are several tuberous-rooted kinds, of which Scouleri, rose-purple. May ; and tuberosa, purplish, March, are the best. These are increased by offsets from the tubers in autumn, or by seed ; and the fibrous- rooted kinds by division in autumn or by seed. Corylopsis. — A group of shrubs from China, Japan and the Himalaya, allied to the Witch Hazels, and belonging to the same family (Hamamelidaceae), but less generally hardy. So far as winter is concerned they never suffer, but growth and flowers appear early in April, and late frosts sometimes cut both rather badly. The flowers are usually fragrant, golden in colour with red anthers, and borne in catkins from buds on the previous year's shoots. They require fairly light loam in which a httle peat or leaf-mould has been dug, and are increased by means of seeds. Pruning is confined to an occasional thinning of the old worn-out growths. The best are : Grilfithii, a Himalayan bush, 4 to 5 feet high ; pauciflora, an elegant free-flowering kind from Japan, with pale yellow flowers and dainty leaves, which are green and bronze during early spring— it is worth growing in the greenhouse ; spicata, a Japanese bush and fairly hardy ; Veitchii, a new species from China. Corylus (Nut). — This group consists of nut-bearing trees and shrubs (Natural Order Cupuliferae), its best-known representatives being the Common Hazel of our woods and hedgerows, and the Filberts and Cobnuts of gardens. The different kinds are found in Europe, Asia and North America. As a rule, they are large bushes up to 20 feet high, but certain Eastern European, Himalayan and Chinese sorts form moderate-sized trees with trunks 12 to 15 inches in diameter. The timber of such trees is useful for cabinet work, etc., whilst coppice grown plants of Common Hazel produce good stakes which are used for crate and basket making, hurdles, etc. All thrive in loamy soil which may be either light or heavy, and the species are increased by seeds, the varieties by grafting, cuttings and layering. Bushes must be kept moderately thin for fruiting purposes, and Cobnuts and Filberts are often pruned on the spur system, the side shoots being cut back in winter. The Hazels are included in the catkin-bearing section of trees and shrubs, the tassel-like catkins of golden male flowers being conspicuous during late winter. The small red female flowers appear on the same bushes. A few kinds are grown for their ornamental BEDS OF THE SUMMER CYPRESS (KOCHIA TRICHOPHYLLA) COSMOS 127 foliage. The best sorts are : Avellana, Common Hazel — the variety aurea has golden leaves, heterophylla finely cut leaves, and pendula has weeping branches ; Colurna, the Constantinople Hazel, forms a tree 30 to 40 feet high, it is useful as a lawn specimen ; Jacquemonti is a Himalayan tree, somewhat like the last-named ; maxima, from South Europe, is best known by its purple-leaved var. atropurpurea — the Barcelona nuts are considered to be derived from a form of this species ; americana is a North American species, the leaves of which colour well in autumn. Good garden nuts are : Bergeri, a free-bearing cob ; Kentish Cob, a good market variety ; Webb's Prize Cob, very fine nuts ; Prolific Filbert, a good-flavoured kind ; Red Filbert, a handsome variety. Cosmos. — Annuals with prettily divided leaves and single DfihHa- like flowers, belonging to the Daisy family (Compositae). They reach a height of from 3 to 6 feet. The Cosmos have long been known in this country, and though popular in America have never been much grown here, owing to the fact that their blossoms open late and are liable to be spoilt by frost. Of late, however, by continual selection, an earher flowering race has been obtained, and this has led to their being more generally cultivated. The flowers in the different varieties are of various shades of white, pink, rose, and crimson ; they are extremely useful for cutting. Seed must be sown in warmth in February, and the young plants put in the open ground late in May. Moderately rich soil suits them best. Cotoneaster {Rockspray). — An important group of evergreen or deciduous shrubs or small trees, natives of Europe, the Himalaya, China, and a few from other countries. They belong to the Rose family (Rosaceae). The majority are found in the Himalaya and China, those from the former region having been introduced about the middle of last century, whilst the greater number of the Chinese kinds have been brought to our gardens within the last fifteen years. Most kinds are perfectly hardy and are grown largely on account of their decorative fruits ; a few are, however, showy when in flower, others are good evergreens, whilst the leaves of some of the deciduous kinds colour well in autumn. The large-growing sorts are excellent plants for shrubberies, specimen groups, or isolated plants, whilst those of dwarf or more or less scandent growth are useful for the rock garden, dry banks, or for planting against walls. Loamy soil, light rather than heavy, is most suitable, though they are not very particular in this respect. Propagation is by cuttings or seeds. Various kinds are sometimes grafted upon the Common Thorn, but the prac- tice ought not to be encouragedj Pruning is confined to cutting 128 THE BOOK OF HARDY FLOWERS back 5'oung plants in order to obtain a sturdy foundation, and others which may be outgrowing their positions. Regular pruning, however, is unnecessary. The best of the older kinds are : acutifolia, an upright-growing kind from Mongolia, etc., with showy fruits ; bacillaris, one of the most vigorous Himalayan kinds, grows from i8 to 25 feet high, spreads widely, and bears a profusion of small dark purple fruits ; buxifolia is a vigorous evergreen bush, with small Box-like leaves, the white flowers are followed by showy red fruits ; Franchetii, native of Yunnan, grows 8 feet high and bears scarlet fruits ; frigida sometimes grows from 30 to 35 feet high, with a very wide spread, it is native of the Himalaya, and bears large dense heads of cream-coloured flowers, which are followed by bright red fruits, HorizontaHs is a very dis- tinct Himalayan kind : as a bush it grows about 18 inches high, but against a wall it will attain a height of 12 feet, the scarlet fruits and autumnal leaf-colouring are alike attractive ; microphylla is a dwarf kind, suitable for the rock garden, but it also thrive against a wall, sometimes attaining a height of 15 or 18 feet, its tiny evergreen leaves, white flowers and red fruits are all ornamental — the var. glacialis is dwarfer than the type. Rotundifolia is a sub-evergreen Himalayan species, for the leaves are retained until early spring : it is, perhaps, the most useful of all, for its bright red fruits remain in good con- dition from October until March ; Simonsii is an upright-growing Himalayan shrub with scarlet and yellow fruits. The chief new kinds are : bullata, native of China, a deciduous bush with wrinkled ovate leaves, which bears large bunches of rich red fruits ; divaricata, a handsome deciduous bush, 3 or 4 feet high, with something of the general appearance of horizontalis, though more vigorous ; harroviana is a small red-fruited evergreen ; henryana, 8 to 10 feet high, forms a loose bush, bearing evergreen leaves and red fruits ; salicifolia has long, narrow leaves and red fruits ; there are several varieties of this, of which floccosa and rugosa are distinct. Cotton Thistle. — {See Onopordon.) Cotyledon. — The few hardy Cotyledons (Natural Order Crassu- laceae) are of little value from an ornamental point of view, but there are now included different succulent plants so much used for summer bedding, and commonly known as Echeveria. This name is too firmly fixed to be easily eliminated, but all botanists concur in re- garding them as Cotyledon. The different kinds are used in various ways, the dwarf ones, and especially secunda glauca, being generally employed as an edging to beds. In carpet bedding this plant often furnishes the required dividing lines, one great advantage being that J CRAMBE 129 it does not outgrow the height required. The larger growing kinds, of which metaHica may be taken as an example, are often used as "dot" plants among low plants in formal bedding, while in beds of succulents arranged out-of-doors during summer the metallic tone of foliage imparts pleasing variety. The Cotyledons or Echeverias are readily increased by seeds, when they can be obtained ; they are sown in spring in warmth, the seedlings being pricked off when large enough to handle. The popular variety secunda glauca is, however, so prolific in suckers or side growths that it can be propagated to almost any extent in that way. The plants are lifted in autumn before frost has injured them, and the side shoots are pulled off and dibbled in boxes of light sandy soil. If wintered on a greenhouse shelf they will form good plants by the time the bedding-out season comes round. The older plants may be wintered in the same way or potted singly. Failing seed of the larger kinds, such as metallica, they may be pro- pagated by pulling off in autumn any leaves that can be spared from the lower portion of the stem, inserting them as cuttings in light sandy soil, and keeping them on a greenhouse shelf, giving little water. Cotyledons must be wintered in a structure from which frost is excluded, and very little water is required. Any attempts to winter them in a cold frame and protect from frost by heavy cover- ings generally end in failure, owing to an excess of moisture, which proves harmful. Crambe {Sea Kale). — One member of this group, which belongs to the Wallflower family (Cruciferae), namely Crambe maritima (Sea Kale), is of considerable value from an economic standpoint, being a choice and much- appreciated vegetable. As far as ornamental qualities are concerned it is, however, greatly surpassed by cordifolia, a native of the Caucasian district. This is a stately and noble plant, with large heart-shaped leaves that require ample room for their develop- ment. The loose flower-heads, which are often 6 feet in height, and nearly as much through, are composed of myriads of small white flowers, which at a little distance may be likened to a giant specimen of Gypsophila ; it blooms during June and July. Like the Sea Kale itself, this Crambe may be readily increased by root cuttings taken in winter, pieces of root 4 to 5 inches long being planted in open, sandy soil ; they should be placed in an upright position, and covered with about 3 inches of soil. Crane's Bill. — {See Geranium.) Crataego-Mespllus is a group composed of two kinds of tree belonging to the Rose family (Rosaceae), These trees are of more than ordinary interest, for they originated as graft hybrids after a J 130 THE BOOK OF HARDY FLOWERS Mespilus or Medlar had been grafted upon a stock of Common Crataegus or Wliite Thorn. Shoots were produced which eventually bore leaves, flowers, and fruits of three distinct kinds, some exactly hke those of the Medlar, some similar to those of the White Thorn, and others intermediate between the two. These kinds have been perpetuated by grafting, and are good decorative trees ; they are named Dardari and Asnieresii. Both bear white flowers and require treatment similar to the Thorns. Crataegus {Thorn). — This is a showy and important group of trees and shrubs belonging to the Rose family (Rosaceae), natives of Europe, Asia, and North America, chiefly of the last-named country. The best known is the Common Whitethorn of our commons and hedgerows, while there are others with double scarlet and white flowers which are conspicuous throughout the country in spring and by their showy fruits in autumn. Many hundreds of species have been described, but some are much better than others for ornamental planting. There are few parts of the country where the Thorns may not be planted, for they are generally hardy, and thrive in a great variety of soils, loam being the best. When young, it is desirable to keep the side branches shortened and thinned out, in order that strength may be transmitted to the leading shoots and so encour- age height growth. Pruning in later life is confined to thinning the branches, and this may be done after the flowers have fallen. Pro- pagation of the species is by seeds, and of the varieties by grafting or budding upon stocks of the type. Seeds often take from two to three years to vegetate after being sown, and to economise space they are often stored for one year in a heap of sand. The Whitethorn or Quick is one of the best of all hedge plants, especially for loamy or heavy land, and there is no better fence than a well-kept hedge of Quick for farm land. Of dense habit, with spiny branches, it stands clipping well, and if kept free from coarse weeds and clipped regu- larly, such a hedge remains in good condition for a very long period. The chief species and varieties are : Azarolus, a native of the Orient, bears white flowers in May, which are followed by large, fleshy, sweet fruits which ripen in September ; Carrierei, a hybrid which blooms in late May, the orange-scarlet fruits ripen in September and remain until Christmas ; coccinea, the Scarlet Haw of the United States, is one of the most beautiful Thorns, the white flowers of May are followed by large bunches of rich red fruits in September, the leaves turning to golden shades before they fall; cordata, the Washington Thorn, forms a good-sized tree, which bears large quantities of small scarlet Haws; Crus-galli is the Cockspur or Newcastle Thorn (the former CRINUM 131 name was originally adopted by reason of the long, straight spines which arm the branches), flowers and fruits are showy — the varieties ovalifolia and splendens are specially worthy of note ; macracantha, of the United States, bears very beautiful red fruits ; mollis is much like coccinea, except that it has hairy leaves. Crataegus Oxyacantha, the Common Hawthorn or Whitethorn, is made up of two subspecies, monogyna and oxyacanthoides : there are many varieties of both, but those with double flowers are most approved : flore pleno albo, with white flowers ; flore pleno coccineo, scarlet ; flore pleno puniceo, red ; and flore pleno rosea, rose, are the best of the doubles. Other useful varieties are : aurea, pendula, macrocarpa, praecox (the Glastonbury^ Thorn), and stricta. Crataegus prunifolia is showy alike for fruits and autumn foli- age, while orientalis and punctata are worth growing. Crataegus Pyracantha is referred to under' the latter name. Crinum. — Nearly all the Crinums (Natural Order Amaryl- lidaceae) require a warm green- house. The hardiest is longi- folium, a native of the Cape of Good Hope ; this has a club- shaped bulb, which passes the winter in a dormant state — the leaves produced in spring are strap-shaped and over 3 feet long. In summer the flower spike reaches a height of 3 to 4 feet, bearing a terminal umbel of six to eight funnel-shaped flowers about 6 inches in length, white, flushed on the exterior with pink. Another species, Crinum Moorei, is fairly hardy in a sheltered spot, but not so reliable as longifolium. The bulb of Crinum Moorei is more globose than that of the other, while the flowers are larger and more widely expanded. They are white at first, afterwards becoming shghtly suffused with blush. Between AN ORNAMENTAL THORN (Crataegus orientalis) 132 THE BOOK OF HARDY FLOWERS these two species a hybrid has been raised, which is without doubt the finest hardy Crinum we have. This is Crinum Powelhi, altogether a more vigorous plant than either of its parents. Full-grown bulbs are nearly as long and stout as a man's leg, and fully-developed leaves are about 6 feet in length ; the sturdy flower spike, which develops from the side of the bulb, bears an umbel of broadly funnel-shaped flowers. In the typical kind they are of some shade of deep pink or rose, but there is a variety with pure white blossoms which is really charming. The flowers are, as a rule, at their best in July and August. In planting Crinums a certain amount of care is needed. It is not sufficient just to stick the bulb in the ground, but sound preparation is necessary. In the case of large bulbs of Powellii the ground must be taken out to a depth of at least 4 feet, for the bulb must be nearly buried. Good drainage is essential, and the compost should consist of turfy soil, well-decayed manure, and sand, some of the latter being placed under and around the bulb. Crinums need a warm, sunny spot, such as in the angle formed by two walls, as the leaves, which are somewhat brittle, are thus pro- tected from rough winds. Crooosmia aurea. — A pretty little bulbous plant of the Iris family (Iridaceae), native of South Africa, that produces several sword- shaped leaves which are overtopped by a 2-feet high stem, bearing a spike of orange-red flowers in July. It is not quite hardy, and needs to be planted about 6 inches deep in a waiTn, well-drained border in early spring. Apart from its own intrinsic merit, the Crocosmia is of especial interest from the fact that, crossed with Montbretia Pottsii, it gave rise to the present-day race of Mont' bretias, which form such a striking feature of our gardens during the late summer. Crocus. — The genus Crocus (Natural Order Iridaceae) is an exten- sive one, most of the species being natives of the Mediterranean region extending into Asia Minor. Although the Crocus is prominent among spring flowers, very few of the species or wild kinds are grown to any great extent. The garden varieties, corms (roots) of which are annually sent to this country from Holland in large quantities, are varieties of Crocus vernus, native of Southern Europe. While the Dutch varieties flower at much the same time, by growing some of the species one may have a succession of bloom over a long period. Crocuses, especially the early flowering ones, should be planted in July and August ; the flowers are not nearly so fine if the roots are kept out of the ground too long. Crocuses thrive best in sandy loam, but the popular varieties are not fastidious ; they are frequently grown in grass, and in this A BED OF TULIP INGLESCOMBE PINK CROCUS 133 way make a charming show. The yellow-flowered varieties are the showiest of all for this purpose. A suitable tool for planting bulbs in turf may be obtained, and by its use a large number can be planted in a short time. For purposes such as this those classed according to colour may be used, but if choicer kinds are desired the following can be recommended : Albion, blue and white striped ; Caesar, purple ; Celestial, blue ; Golden Yellow ; Kathleen Parlow, white ; King of the Blues, rich purple-blue ; Maximilian, blue, shaded pink ; Mont Blanc, white ; Pallas, finely striped blue and white ; Prince Albert, dark blue ; Purpurea grandiflora, deep purple ; and Sir Walter Scott, white, striped lilac. Of the species the following are autumn flowering : asturicus, ranging in colour from pale mauve to purple-lilac, with darker stripes at the base ; Fleischerii, white, purple base ; hadriaticus, white, purple base ; iridiflorus, deep lilac ; longiflorus, lilac ; medius, white, veined inside ; pulchellus, lavender-blue ; Salzmannii, blue ; sativus, violet, feathered purple ; speciosus, blue, the finest of all the autumn kinds ; and Tournefortii, rose lilac. A few kinds bloom in winter, but are, as a rule, not seen at their best out-of-doors at that season unless the flowers are protected. Chief among them are : chrysanthus, flowers more or less golden ; Imperati, bluish-white, purple stripes, yellow throat ; Korolkowii, yellow, dark outside ; Sieberii, pale violet ; suaveolens, lilac inside, dark striped outside ; and tommasinianus, lavender and white. They are charming for pots in a cold greenhouse. The spring-flowering species are numerous, a good selection t^ing : alatavicus, white, veined black outside ; ancyrensis, orange-yellow ; aureus, deep orange ; biflorus, white, striped purple ; lunatus, white, striped violet ; luteus, golden-yellow ; stellaris, orange, feathered pur- plish-brown ; and versicolor, white, richly striped purple, j^cllow throat. Crosswort. — (See Crucianella.) Crowfoot.— (S^e Ranunculus.) Crown Imperial.— (S^g Fritillaria.) Crucianella (Crosswori). — Chiefly low-growing herbaceous peren- nials belonging to the same family as Bouvardia (Rubiaceae). Cru- cianefla stylosa is chiefly grown ; this is a good traihng plant, suit- able for sunny parts of the rock garden, and produces its prett}', bright pink flower-heads from spring until autumn. Others are : angusti- folia, white ; glauca, with yellow flowers ; maritima, cream-coloured ; and suaveolens, yellow. They are all easily grown in ordinary well- drained soil, and may be increased by division in autumn or by seeds in spring. 136 THE BOOK OF HARDY FLOWERS most parts of the country, except in or near smoky towns. There are many varieties, of which aurea, lutea, and gracihs aurea, with golden leaves ; glauca and Silver Queen, with silvery foliage ; and gracilis pendula, intertexta, and filiformis, of pendent habit, should be grown. Cupressus nootkatensis is another useful tree from Oregon and British Columbia ; it can be distinguished from the Lawson Cypress by its spiny cones and strong resinous smell ; obtusa (Retinospora obtusa) is a distinct Japanese kind — the vars. aurea, compacta, gracilis aurea, and lycopodioides are worthy of note ; pisifera (Retinospora pisifera), also a Japanese tree, is another showy kind — the varieties plumosa aurea, argentea, fiavescens, and squarrosa sulphurea are amongst the most ornamental of the small bushy Conifers. Cuscuta {Dodder). — The Cuscutas (Natural Order Convolvulaceae) are singular climbing plants, remarkable from the fact that they are quite leafless, and consist only of thread-like stems. They are also of a parasitic nature, and the slender stems attach themselves to the host plant by a number of little vesicles, by means of which the para- site derives its nourishment from the plant which supports it. Two kinds are native of this country, namely, the greater and the lesser Dodder, the last being the more common ; it may often be found growing on the Heath, Thyme, and Furze, while to some field crops — notably Vetches— it is very injurious. Pelargoniums bedded out during summer are sometimes attacked by it ; indeed, the Pelargonium seems to be a good host plant for all the Dodders. An Indian sort, refiexa, may sometimes be seen growing on a Pelargonium in a green- house. The flowers of the Dodders are small and bell-shaped, and in some cases fragrant. Seeds may be sown in proximity to the host plant, to which the young twining stems will soon attach them- selves. One point, however, to remember is that the Dodders, owing to their parasitic nature, are dangerous plants to introduce into the garden. Cyananthus. — A group consisting of two species of pretty, free- flowering, procumbent plants, bearing a considerable resemblance to a Campanula. They belong to the Bellflower family (Campanulaceae). Both are natives of the Himalaya, and require a cool, moist situation in the rock garden, among the stones of which the roots can find ample supplies of moisture. A partially shaded spot and sandy peat soil are essential. They are increased by division, carried out in spring before they start into growth, but they should be disturbed as little as possible. The best known is Cyananthus lobatus, having purple-blue funnel-shaped flowers, with fine spreading segments. CYCLAMEN 137 Cyananthus incanus is a much rarer plant, similar, but with soft azure-blue flowers ; they bloom in August. Cyclamen (Sowbread). — Everyone knows the Persian Cyclamen (persicum), a popular greenhouse flower, but the hardy kinds are not so generally appreciated. The Cyclamen belongs to the Primrose family (Primulaceae), and the hardy kinds are natives of the Mediterranean region. Though consisting of less than a dozen recognised species, there is enough variety among them to satisfy the most fastidious. Their flowering period is chiefly in spring and autumn ; they grow well in the shade of trees, and are admirably adapted for the rock garden. A fairly light, leafy soil, containing pieces of sandstone, suits them provided the situation is well drained. Above all, care must be taken that they are not fully exposed to the sun. The chief kinds are : africanum, a native of the calcareous mountains of Algeria, and a near relative of neapolitanum — the large, prettily marbled leaves are a distinguishing feature, in vigorous plants they measure from 6 to 7 inches in diameter ; the flowers, which open in September and October, are reddish, with a bright purple spot at the base of the segments. In planting the corm must be entirely covered, as this species roots over its entire surface, unlike some of the others, that root only from their base. Cyclamen cilicicum is a pretty little kind, more delicate than some of the others, and is particularly suitable for a sheltered spot on the rock garden ; the flowers are whitish with red centre, and appear in early spring. Cyclamen Coum is a delightful little plant, and one of the most popular as well as most distinct. The corms (roots) are small and regular in shape, while the small, roundish, dark-green leaves are evergreen, or nearly so ; at all events, they are in good condition when the rose-red flowers are open, from January to April. There are varieties with blossoms in shades of pink, and an especially charming one has pure white blooms; Cyclamen europaeum is more particular in its cultural requirements than some ; it seems to prefer leafy, sandy soil in a shaded position. The corms, which emit roots from the undersides only, should not be quite covered, otherwise they are apt to decay ; the bright rose- coloured flowers are sweetly scented, and are borne in September and October. The leaves are often prettily marbled. Cyclamen ibericum, sometimes known as vernum, flowers usually in February and March. It is somewhat similar to Coum, but the corms are larger, while the leaves are somewhat marbled. The pretty little kind grown in gardens as Atkinsii is regarded by botanists as a variety of ibericum; 138 THE BOOK OF HARDY FLOWERS Cyclamen neapolitanum bears a considerable resemblance to africanum, but it is hardier ; the leaves, too, are especially variable in shape, the flowers being chiefly reddish, though individuals vary, for some are almost white. Cyclamen repandum : Though this is the correct name, the species in question is more generally met with under the specific name of hederaefohum. It is a charming plant, the leaves, which are marbled on the upper surface and tinged with purple underneath, opening with the flowers, which are of deep reddish colour, and at their best during spring. Cynara {Artichoke).— As the two kinds in this group are both classed as vegetables, their ornamental qualities are rarely taken into consideration. They belong to the Daisy family (Compositae), and are natives of Southern Europe. Cynara Cardunculus is the Cardoon, and Scolymus the Globe Artichoke. Both are tall. Thistle-like plants with handsome leaves, and large bold heads of purple flowers. They can be propagated either from seeds sown in spring or by suckers from the old roots. When grown solely for their ornamental qualities, which are very evident when the plants are seen towards the back of the herbaceous border, they must be planted in rich, well-drained soil ; stagnant moisture during the winter months is injurious to them. Cynoglossum {Hound's Tongue). — The members of this genus are for the most part coarse-growing. Borage-like plants of a biennial or perennial nature. They belong to the Borage family (Boraginaceae). Ordinary garden soil is suitable. They can be readily increased, the biennial kinds by seeds and the perennial ones by division before growth takes place in spring. A selection of the best includes : amabile, blue, June and July, height 12 inches ; apenninum, rich blue, 2 feet, July and August ; furcatum, blue, 12 inches, summer ; and officinale, reddish, 2 feet, June. Cypella. — Iris-like plants (Natural Order Iridaceae), natives of South America. They are not quite hardy in the open ground, but will thrive in a narrow border at the foot of a sunny wall. Some grow them successfully by lifting the roots in the autumn, wintering them safe from frost, and replanting out-of-doors in spring. The species are Herbertii, flowers varying from light yellow to a deep chrome tint ; peruviana, bright yellow, spotted with reddish-brown ; and plumbea, with lead-coloured flowers tinged with yellow in the centre. The last-named, which is also known as Pohlia platensis, flowers in autumn, the two others in summer. Cyperus. — An extensive group of Grass- or Sedge-like plants (Natural Order Cyperaceae), most of which are natives of tropical CYPRIPEDIUM 139 regions and are therefore unsuited for outdoor cultivation in this country. One, however, Cyperus longus, native of Europe and North Africa (occasionally occurring in Great Britain), is attractive when planted on the margin of water. It reaches a height of about 3 feet, and the long, narrow leaves are very graceful. It is readily increased by division, carried out in winter or early spring, and is not particular as to soil provided the situation is a swampy one. Cypripedium {Lady's 5^z/'/>^r).— Most of the Cypripediums (Natural Order Orchidaceae) are evergreen, and need the shelter of a warm green- house. However, some are perfectly hardy, all of them being decidu- ous. In their cultural requirements they differ considerably, so that no general instructions will apply. Most of them will thrive in a mixture of peat, leaf-mould, and sand. Others (our own native Cypripedium Calceolus, for instance) prefer loam soil containing lime. Generally speaking, all the hardy Cypripediums do best in a partially shaded spot where the soil is fairly moist and at the same time not waterlogged. Cypripedium acaule, also known as humile, produces from each crown two broad hairy leaves, and on an upright spike bears an abnormally large flower, as much as 3 inches across the segments. The pouch, fully 2 inches deep, is of rosy-purple colour, and split right down the front so as to present the appearance of two lobes. This kind grows readily in loam and sand, with the addition of a little peat or leaf-mould. Cypripedium Calceolus is a free-growing kind that reaches a height of about 2 feet. Generally two flowers are borne on a spike, their colour being yellow and brown ; the lip is yellow. Cypripedium californicum has leaves similar to those of Calceolus, but the erect flower spike bears sometimes as many as ten flowers. They are small and distinct, the pouch being white tinged with pink, while the rest of the flower is yellowish. This needs a peaty soil with a mixture of loam. Cypripedium macranthum is an exceedingly hand- some species, bearing large rosy-purple flowers on stems about 12 inches high. It is often grown in association with Calceolus, and needs the same soil and treatment. Cypripedium montanum produces flower stems about 12 inches high, bearing several flowers with twisted sepals of a purplish tint ; the pouch is whitish. Like the preceding, this may be treated as recommended for Calceolus. Cypripedium pubescens is one of the larger kinds, of which the flower stems reach 2 feet high and overtop the large hairy leaves. The petals and sepals, which are drooping and much twisted, are brown, tinged with yellow ; the pouch is yellow. This will thrive in moist, peaty soil. Cypripedium spectabile (also known as regale), 140 THE BOOK OF HARDY FLOWERS popularly termed the Moccasin Flower, is undoubtedly the finest of all the hardy Cypripediums. It will reach a height of 2 to 3 feet, and bears two or three flowers on each stem ; they are white, with the exception of the lip, which is tinged more or less with rose. The Moccasin Flower likes well-drained yet moist, peaty soil. A well- established clump forms a very striking feature in a moist, sheltered spot in the rock garden. The various Cypripediums mentioned flower as a rule in May or June ; most of them are natives of North America, though macranthum comes from Siberia. Cyrilla racemiflora (Leaiherwood). — This shrub (Natural Order Cyrillaceae) is a native of the Southern United States, where it is known as Leatherwood. Forming a small bush 2 or 3 feet high, it bears racemes of small white flowers during August. Plant in the southern counties, in light loamy soil containing a little leaf-mould or peat, and propagate from cuttings or seeds. Limit pruning to the removal of the points of the shoots in spring. Cystopteris {Bladder Fern). — A small group of Ferns (Natural Order Filices) with delicately cut fronds and of refined appearance. Of the four kinds in cultivation three are natives of this country, but not of this country alone, while one, Cystopteris bulbifera, comes from North America. The Bladder Ferns are well suited for planting in moist, shady portions of the rock garden close to the eye, so that their fronds can be closely inspected. A soil of loam, peat, leaf-mould, broken mortar, and pieces of limestone suits them. They are decidu- ous ; the leaves die off early in autumn, and are late starting into growth in the spring. The species are : alpina, fronds from 4 to 8 inches long and 2 inches wide — it is rare in Britain but common on many of the mountains of Europe ; the second, bulbifera, more vigorous, is native of a considerable portion of North America — the bulbils towards the ends of the fronds are a distinguishing feature. Of quite a cosmopolitan character is fragilis, for it occurs in nearly all the temperate regions of the globe ; there are many garden forms of this. Cystopteris montana, the most beautiful of all, needs particular care ; it requires a moist, shady spot and a compost made up of stones, fibrous peat, and sand. Cytisus (Broom). — This is an important genus of the Pea family (Leguminosae), comprising a considerable number of hardy shrubs and a few which are too tender for general outdoor cultivation in the British Isles. The majority are natives of Europe, and one species, scoparius, is wild in the British Isles. The last-named is known as the Common Broom, and the term Broom is generally applied to them all. They thrive in ordinary garden soil, but prefer that of a light loamy nature. ON THE MORAINE (EDRAIANTHUS PUMILIO) HERON'S BILL (ERODIUM TRICHOMANAEFOLIUM) DABOECIA POLIFOLIA 141 Some kinds, however, are wonderfully successful in poor, gravelly soil on sunny banks. Propagation is effected by several means ; the species are usually raised from seeds, whilst the hybrids and varieties are increased by cuttings or by grafting upon stocks of Laburnum. The latter is perhaps the better means, providing fairly hard shoots are used as scions. Plants must be placed in permanent quarters whilst quite small, as large ones transplant badly. In fact, it is a good plan to place them straight out from pots. The tops of young plants should be cut back occasionally to induce a bushy habit. Pruning in after life consists of shortening the previous year's shoots after flowering. On no account cut plants back into older wood, for young shoots will not appear from old branches. One kind, purpureus, needs different pruning ; the branches may be cut away each year after flowering ; new ones will then be formed from the base. The Brooms do not remain at their best for more than six or eight years. The following form a selection of species and varieties : albus, White Spanish Broom, native of Spain and Portugal, white. May ; Ardoini, a prostrate, golden-flowered plant from the Maritime Alps, suitable for the rockery ; Beanii is a beautiful golden-flowered hybrid of low growth, it is a good rockery plant ; biflorus, from Eastern Europe, blooms in April ; Dallimorei is a new, tall-growing hybrid with showy, rosy purple flowers ; Kewensis, a dwarf kind with cream flowers, is suitable for the rock garden ; nigricans flowers in July from the young wood, it may be pruned in spring ; praecox is a free-growing and free- flowering hybrid with cream-coloured fiovv^ers, it grows 4 to 5 feet high, and is a good shrubbery plant ; purpureus is an Eastern European plant, 12 to 18 inches high, it bears purplish flowers in May ; scoparius, the Common Broom, is handsome either in a state of nature or in the garden, its var. Andreanus has bronze and golden flowers, whilst sulphureus, sometimes called the Moonlight Broom, has sulphur- coloured blossoms. Daboecia polifolia [Irish Heath). — This plant is closely allied to the Heaths (Natural Order Ericaceae), and is sometimes called St. Dabeoc's Heath. It is native of South-West Europe, and also occurs wild in Ireland. It grows from 6 to 15 inches high, and requires similar treatment to the true Heaths. Light soil is the most suitable, but it must be free from lime. Pruning takes the form of removing the flower heads and an inch or so of each branch after the blossoms are over. The red, white, or purplish flowers are urn-shaped and borne in erect racemes. Flowering commences in June and is continued throughout summer until a glorious burst of blossom, lasting from the middle of August until towards the end of September, brings 142 THE BOOK OF HARDY FLOWERS the season to an end. The var. alba has white flowers, and bicolor bears red and white flowers on the same stalk. Dacrydium. — This is a small group of Conifers (Natural Order Coniferae), the four introduced kinds being natives of New Cale- donia, New Zealand, Malaya, and Tasmania respectively. All are \ tender, and the hardier ones can |\y only be grown out-of-doors in a \| few gardens in the British Isles. They are therefore of little general interest. Dacrydium cupressinum and Franklini are the hardiest kinds. Plant in well-drained soil composed of loam and peat or loam and leaf -mould. Dactyl is {Cock's-foot Grass). — Hardy Grasses (Natural Order Gramineae), a few of which are grown in gardens. Dactylis glome- rata is a common grass in Europe, including Britain ; it grows about 2 feet high, and is of no garden value, but there is an attractive variety with green and silvery striped leaves which is grown for use in summer bedding, generally as an edging to large beds or borders, though sometimes planted as a groundwork for tall Fuchsias, Heliotropes, etc., or as " dot " plants in low beds. The variegated Cock's-foot Grass (glomerata var variegata) is a hardy perennial, readily propagated by division of the roots in October ; it may be planted in autumn or spring, and thrives freely in ordinary soil. Daffodil. — (See Narcissus.) Dahlia. — Most if not all the beautiful Dahhas (Natural Order Compositae) now in cultivation are thought to have been obtained from Dahha coccinea and Dahlia variabilis, two tuberous-rooted, half- hardy perennials, natives of Mexico. They are propagated from seeds, cuttings, and division of the tuberous roots. Sow the seeds in a heated greenhouse during February and March, pot off the seedlings singly when large enough, and grow in a greenhouse or frame until the end of May, when it is safe to plant out-of-doors. Single Dahlias come fairly FLOWER OF A SINGLE DAHLIA DAHLIA 143 true from seeds, but in the case of the Show and Cactus section only a few with good full-double flowers can be hoped for. Florists who specialise in Dahlias raise hundreds of seedlings every year, but very few are retained as worthy to be named and distributed. The favour- ite method of increasing Dahlias is by cuttings. Early in February bring out the roots from their winter quarters, place them in a warm greenhouse in boxes containing leaf-mould, but do not cover the tubers. Syringe morning and evening on bright days, then young shoots will soon commence to push out. When these are about 2 inches long, remove them with a small portion of the old tuber attached, and insert in pots of sandy soil in a closed frame. When rooted, pot off singly and grow as advised for the seedlings. Increase by division of the tubers is best done when growth has started, so that when pulling the roots apart shoots are left on each portion For this purpose the tubers should be started in a greenhouse or frame in March and early April. When increase of stock is not re- quired the roots may be taken straight from the store and planted outside at the end of April. By this method one obtains large bushy plants and lots of flowers, but the latter are not so fine as those on plants grown from cuttings; Dahlias delight in -rich, deeply dug soil. In beds and borders the plants flower freely from July until October or even later when the weather is mild. Owners of small gardens complain that Dahlias make too much growth, but there are now numbers of varieties 3 to 4 feet in height, compact and free-flowering. One essential in Dahlia cultivation is to grow the plants in open sunny positions. Thinning the shoots is necessary at intervals throughout the season, beginning when the young shoots are a few inches high ; these must be restricted to three or four. Secure each plant to a good stake and water liberally during dry weather, giving also liquid manure occasionally. It is necessary to re- move the old flowers as they fade, otherwise (especially in the case of the single sorts) the production of seed pods restricts the supply of cactus dahlia bloom %^ 144 THE BOOK OF HARDY FLOWERS bloom. In late autumn or early winter, when frost kills the flowers and leaves, cut down the stems to within about i8 inches of the ground, lift the roots carefully, and store in a frost-proof shed or cellar, covering, if thought necessary, with dry litter. Dahlias grow from about 2 to 7 feet high ; the Paeony-flowered variety King Leopold sometimes reaches 9 feet in height. They are divided into groups or sections, according, generally, to the shape and size of the flowers. The Cactus type is one of the most popular, and is largely grown. The correct flowers are star-shaped, with numerous rolled or twisted petals radiating symmetrically from the centre. For garden decoration there are varieties known as Decorative Cactus Dahlias, in which the petals are more or less flat, or perhaps only twisted at the tips. The Show Dahlia has large, double, symmetrically formed blooms closely packed with petals of one colour. These are the oldest of the exhibition Dahlias, and still find chief favour in cottage gardens. The Fancy Dahlia is similar in build, but the flowers may comprise two or more colours. The Single Dahlias are very free- blooming, and are invaluable for indoor decoration. The quaint little flowers of the Pompon Dahlia, borne freely on stiff, erect stems, find many admirers. More recently the Paeony-flowered Dahlias, the first varieties of which came from Holland, have increased rapidly in popular favour. The big loose blooms on long stalks are freely produced, and make a brave show in the border, but the plants are too tall and branching for small gardens. The Collarette Dahlias are the latest to claim special attention ; they resemble the single varieties, but have a cir- cular frill surrounding the yellow centre. The plants are of moderate vigour and free-flowering. Still another section has recently been added, namely, the Star or Cosmea-flowered Dahlias ; these bloom freely and have single flowers. Two of the best are Crawley Star, rose ; and White Star. New and improved varieties of Dahlias are constantly appearing ; a list of sorts given here would soon be out of date, consequently it will be more helpful to the grower if the list of a Dahlia cultivator is consulted. Daisy.— (S^e Bellis perennis.) Danaea Laurus {Alexandrian Laurel) is a dwarf shrubby plant belonging to the Lily family (Liliaceae). It is allied to the Butcher's Broom, but is a more elegant plant with foliage of a lighter and more cheerful shade of green. The flowers are small and of little account, but they are succeeded by bright red berries. Cut branches are appreciated for house decoration in winter, either associated with DAPHNE 145 other evergreens or used with flowers. It is a native of Asia Minor, grows about 18 inches high, and thrives in loamy soil in semi-shade or in sunny places. Propagate by seeds or division of the clumps, and restrict pruning to the removal of the older shoots. Daphne. — Fragrant flowered shrubs (Natural Order Thymel- aceae) suitable for the front of the shrubbery or for the rock garden. A few, however, are not generally hardy, and must be given the protection of a cool greenhouse. Some require soil containing lime, but Blagaj^ana and Cneorum thrive in sandy peat. They dislike hot, dry situations, and the best results are secured when the roots are in constantly moist, but not saturated, soil. Some kinds are in- creased by seeds, some by cuttings, and others by grafting ; pro- pagation other than by seed is, however, rather difficult. The follow- ing species and varieties are chiefly worth attention : Blagayana, a dwarf kind with cream-coloured flowers, from Carniola ; it should be grown on the rockery and the branches must be constantly weighted down by stones. Cneorum is the Garland Flower of the Alps, the beautiful, fragrant, rose-coloured blossoms are very attractive : plant on the rockery ; Laureola is an evergreen, British species, suitable for a shady spot ; Mezereum, the Common Mezereon, is well known as a handsome February-flowering bush, the reddish-purple flowers are very fragrant : the vars. alba and grandiflora, too, should be grown. Odora is a tender evergreen plant from China and Japan ; its fragrant flowers are attractive during winter. In Cornwall it may be grown out-of-doors. Daphniphyllum macropodum is a handsome evergreen bush from China and Japan, belonging to the Spurge family (Euphorbiaceae). It grows from 5 to 8 feet high and forms a wide-spreading shrub with glaucous green leaves with red stalks. The flowers are not con- spicuous. Propagation is by seeds, and the plant thrives in loamy soil or in loam and peat. No pruning is necessary after the bushes have once formed a number of branches from near the ground. Jezo- ensis is a dwarf variety, and variegata has pretty, silver variegated leaves. Unfortunately the last-named is not hardy. Darlingtonia {Calijornian Pitcher Plant). — This is one of the few Pitcher Plants (Natural Order Sarraceniaceae) that can be grown out-of-doors in this country. There is only one species, californica ; it grows from i foot to 2 feet in height, and has greenish-j^ellow flowers marked with dark red-brown veins during April and May. The leaves or pitchers are more ornamental than the flowers ; they are narrow at the base, and gradually increasing in width form at the top a kind of inflated hood ; they are green, mottled with white, with prominent 146 THE BOOK OF HARDY FLOWERS reddish-pink veins. Propagation is by division in March and by seeds sown in a cool greenhouse when ripe. Prepare a compost of sphagnum moss, peat, charcoal, and coarse sand, sow the seeds on this, stand the pot in a saucer of water, and cover with a bell-glass. Plant in a moist, shady position in the rockery, bog garden, or with hardy ferns in a mixture of peat, sphagnum moss, broken limestone, and coarse sand. It is sometimes found desirable to cover the plants in winter with a handlight. Datura (Thorn Apple). — An interesting group of half-hardy annuals and greenhouse shrubs, belonging to the Potato family (Solanaceae), and natives of tropical America chiefly ; the former are the more important for outdoor gardening, though in warm, sheltered gardens the greenhouse Daturas (Brugmansia) are often placed outside from June to September. The annual Thorn Apples are readily raised from seeds sown in a warm greenhouse during February and March. Pot the seedlings singly in small pots, subse- quently transfer them to 5- or 6-inch pots, and plant in beds and borders out-of-doors in late May or early June. They like light, rich soil, made up of 2 parts sandy loam, i part leaf-mould, i part decayed manure, and i part coarse sand. The following are annuals, unless it is otherwise stated : ceratocaula, bears white, fragrant, trumpet- shaped flowers, tinged with purple, in July and August, 3 feet high ; cornucopia has double white flowers, shaded purple, in July to Septem- ber, 2 to 3 feet ; chlorantha flore pleno, with yellow, trumpet-shaped flowers in July and August, is a greenhouse perennial, but if sown early may be treated as an annual, 2 feet high upwards ; Metel bears white, fragrant, trumpet -shaped blooms from June onwards, 2 feet. Stramonium (Common Thorn Apple) has white flowers in July and August, followed by thorny or spiny fruits : it is about 2 feet high, and is found wild in many parts of the world, including Britain. Datura meteloides (Wrightii) produces large, fragrant, trumpet- shaped flowers, white, tinged with purple ; it is a Californian shrub and a splendid greenhouse plant, but if sown early it will grow about 3 feet in height the first year, and flower outside during August and September. Davidia involucrata is a new tree belonging to the Dogwood family (Cornaceae). It is a native of China, and reports of its decora- tive character in a state of nature were such that Messrs. Veitch, of Chelsea, decided to send a collector to China, with the collection of seeds of this tree as one of the principal objects of his mission. One or two plants had been previously introduced to France, but it was through the initiative of Messrs. Veitch that the tree became available A CLUMP OF PERENNIAL LARKSPUR (DELPHINIUM) DECUMARIA 147 in quantity. It is said to attain similar proportions in China to those of the Horse Chestnut here. The leaves are more or less ovate and up to 6 inches long. The flowers are small and borne in dense heads from buds on mature wood ; they are not showy, but this deficiency is made good by the large and handsome, white, leaf-like bracts which attend each inflorescence. In this country it grows vigorously in loamy soil, and has already flowered in several gardens. Propagation can be carried on by seeds or by cuttings. Prune to keep a clear leader and to remove superfluous branches. It is thought that more than one species is in cultivation, and different names have already been suggested for one or two kinds which vary in character of foliage. Of these Vilmorinii is perhaps the most distinct. Day Lily. — (See Hemerocallis.) Decumaria. — The best known of the Decumarias, which belong to the Natural Order Saxifragaceae, is barbara, a deciduous (leaf-losing) twiner from the Southern United States. It has white fragrant flowers in May and June, borne in tenninal corymbs suggestive of Hydrangea, to which it is closely related. Propagation is by cuttings inserted in sandy soil in a cold frame during August and September. It comes from the Southern United States and is rather tender, so should be planted against a sheltered fence or wall in well-drained soil of sandy loam, leaf-mould, and peat. Delphinium (Larkspur). — The numerous annual and perennial Larkspurs, which belong to the Buttercup family (Ranunculaceae), furnish our gardens with brilliant colouring throughout summer. The perennials are the best blue-flowered border plants ; they vary from 3 to 6 feet or more in height, and flower from June to September. The florists' named varieties are exceedingly numerous, practically every shade of blue is represented in single, double, and semi-double flowers, while recently several varieties with white flowers have been intro- duced. The following are excellent varieties, comprising a wide range of colours : Double or Semi-double— Antigone, Carmen, King of Del- phiniums, Mrs. Creighton, Perfection, Primrose, Rev. E. Lascelles. Single — Belladonna, Duke of Connaught, Julia, Lamartin, Lizzie van Veen, Moerheimi (pure white), Persimmon, Queen Wilhelmina. While the named sorts make the bravest show in the garden, there are several very beautiful perennial species. The best are : Brunonianum, light blue, June to August, i| feet, Himalaya ; cardinale, scarlet, July to August, 3 feet, Cahfornia ; cashmirianum, slaty blue, June to August, 1 1 feet, Himalaya ; formosum, rich indigo blue, June to July, 3 to 4 feet, Armenia ; grandiflorum, beautiful gentian blue, June to September, i foot to 2 feet, Siberia : var. album is pure white, and 148 THE BOOK OF HARDY FLOWERS var. caelestinum grey-blue ; nudicaule, orange-red, May to July, i^ feet, California ; sulphureum (Zalil), pale sulphur-yellow, June to August, 2 to 3 feet, Syria. The perennial Larkspurs are readily raised from seeds sown on a border out-of-doors or in a cold frame from April to June. To pro- duce flowering plants the same year seeds are sown in a warm green- house during February. The named varieties of florists' Delphiniums are the best, though many beautiful sorts can be raised from a packet of mixed seeds. These plants delight in deep, well-tilled, loamy soil enriched with decayed manure, leaf-mould, and wood ashes. They are increased by division of the roots in September or March. They dislike being disturbed, and may be left for four or five years without lifting. If the first flower spikes are cut off when the blooms fade a second display may be looked for in August if the plants are watered during dry weather and given liquid manure. For an autumn display of flowers seedlings raised in warmth early in the year are valuable. Most of the clumps produce numerous shoots and some should be removed ; if dibbled singly in small pots filled with sandy soil and placed in a closed frame they will root readily and make nice plants for autumn flowering. The annual Larkspurs are very effective in beds and borders. Plants of the different sections vary from i foot to 4 feet in height. The dwarf sorts are varieties of Delphinium Ajacis, a wild British kind, and the taller branching sorts are derived from Consolida, a European species. Seeds are best sown in the borders or beds where the plants are to flower, as they do not transplant readily. Sow in autumn or spring. The following are excellent strains of annual Larkspur : Dwarf Rocket, 12 inches ; Double Stock-flowered, 3 feet ; Emperor, 2 feet ; and Ranunculus-flowered, 18 inches. These strains can be purchased in mixed colours, or the following are obtainable separately : white, apple blossom, rose, lilac, dark blue, light blue, rosy-scarlet, purple, mauve, and violet. Dendromecon (Tree Poppy). — This is a rare Californian shrub, belonging to the Poppy family (Papaveraceae). The only species is rigidum, which has yeUow Poppy-like flowers during summer. It requires a sheltered spot in most gardens ; against a south or west wall or fence it wfll grow to a height of 5 feet or more. The border must be well drained ; if the soil is at all heavy dig it out to a depth of 2 feet, put in 6 to 9 inches of brick rubble, and fill up with 2 parts sandy loam, i part peat, and i part leaf-mould. Increase is by cuttings inserted in pots of sandy soil during August. Plunge the pots to the rim in a propagating frame with slight bottom heat. DESFONTAINEA SPINOSA 149 Another method of propagation is to layer the lower branches in autumn. Desfontainea spinosa is a decorative evergreen shrub (Natural Order Loganiaceae) from Chili and Peru. Of rather stiff and upright habit, it attains a height of 4 or 5 feet and is a popular shrub in the milder parts of the country. The somewhat thick, spiny-margined leaves suggest those of the Holly, though they are lighter coloured. The tubular scarlet and yellow flowers are, however, the chief attrac- tion. Each one is about i^ inches long and ^ inch in diameter ; they are borne freely during sum- mer. It may be planted in loamy soil or soil con- taining peat, requires a sunny position, and is increased by seeds or layers; Regular pruning is unnecessary. In those gardens where it will not grow successfully in the open border on ac- count of an unfavour- able climate, it may be planted against a wall. Deutzia. — The value of several kinds of Deutzia (Natural Order Saxifragaceae) as showy flowering shrubs has been appreciated for many years, but recently a number of others have been introduced from China and are equal in decorative qualities to the best of the older kinds. In addition, both new and old sorts have been crossed with very good results, and we have now a set of free-flowering and showy hybrids. The Deutzias, however, have one defect : they commence to grow very early, and the flower-buds of many kinds appear simulta- neously with the young shoots, although the actual flowering time is not until May, and their precocious nature frequently leads to the crippling of the flowers by late frosts. However, there are many gardens which escape late frosts, and whether or not, the earlier sorts are exceptionally valuable shrubs for forcing for greenhouse decora- tion during early spring. The Deutzias must be given rich loamy soil and a top-dressing of manure once a year, for they are " rank A Chilian Shrub (Desfontainea spinosa), having red and yellow flowers and Holly-like leaves I50 THE BOOK OF HARDY FLOWERS feeders." Propagation is by cuttings of the young shoots in summer. In pruning the dwarfer kinds and the hybrids it is a good plan to remove most of the flowering wood as soon as the flowers are over, thus leaving plenty of room for the numerous young shoots which appear from the base. The tall-growing sorts simply need an occa- sional thinning. The chief kinds are : corymbosa, a handsome Himalayan plant, bearing very large heads of white flowers ; crenata, a plant of many names, native of Japan, is often called scabra, and is one of the most vigorous kinds, growing lo feet high, it bears long racemes of white flowers with great regularity (flore pleno extus purpurea has double flowers shaded with purple, and Pride of Rochester has double white blossoms) ; discolor, a Chinese species, 3 to 4 feet high, bears purple-shaded flowers — the var. purpurascens is an improvement on the type ; gracilis is a well-known species from Japan, growing ij to 2 feet high, and bearing white flowers freely : it is often used for forcing ; parviflora, a native of China, grows 4 feet high, and bears white flowers freely. The three last-named kinds have been intercrossed, and there are many handsome hybrids, including campanulata, kalmiaeflora, Lemoinei, Apple Blossom, and compacta. Deutzia Wilsoni is a new Chinese species, with large heads of white flowers ; Veitchii, another new species from China, bears rich purple blossoms ; Vilmorineae, from the mountains of Setchuen, is a vigorous bush 8 feet high with large inflorescences of fine white flowers. Dianthus {Carnation, Picoiee, Pink, Sweet William). — The Dian- thus (Natural Order Caryophyllaceae) is a very large and important group of plants including as it does several well-known and highly valued garden flowers. Alpine or Rock Pinks. — We find some of these in every rock garden. They require a sunny position, gritty soil, and are never happier than when growing in the chinks between stones and boulders, or in old walls. Patches or groups of the free-growing kinds are effective along the front of a sunny border. Propagation is by division in September, by cuttings inserted in a cold frame during July and August, and by seeds sown in well-drained pans of sandy soil in a cold frame from April to July. The chief kinds are : alpinus, deep rose, spotted crimson, June to July, 4 inches, Alps of Austria, etc. ; aren- arius, white, pale purple base, fringed, 6 inches, Europe ; atrorubens, dark crimson, 12 to 18 inches, June to August, Southern Europe ; caesius (Cheddar Pink), rosy-purple. May to July, 2 or 3 inches, a good plant for old walls, Europe, including Britain ; deltoides (Maiden O 00 5 Q < o >i o o DIANTHUS 151 Pink), rosy-purple, tufted habit. May to July, 6 inches, Europe : the var. graniticus has deep-coloured flowers ; fragans, white single flowers, very fragrant, useful in rockery and border, July to August, 12 inches, Caucasus ; glacialis, large rosy-crimson flowers, June to July, 3 inches, Alps of Europe ; Knappii, interesting because the flowers are pale yellow, May to July, 12 inches, Hungary, etc. ; neglectus (Glacier Pink), cherry red, June to July, quite a miniature species, 2 to 4 inches, Europe ; superbus, rose, very fragrant, 12 inches, a favourite plant for the rockery and border. Some of the Alpine Pinks are quite easily grown in well-drained gritty soil with which broken brick or stone is freely mixed, but others need special care. Those that give no trouble are : arenarius, atrorubens, caesius, deltoides, graniticus, fragrans, Knappii, and super- bus. The Alpine Pink (alpinus) needs well-drained loam containing lime ; neglectus thrives in gritty loam with which lime rubble is mixed ; glacialis is very difficult, and is most likely to succeed in a compost of loam and peat containing granite or sandstone chips, and if placed in a slightly shaded rock crevice. Others worthy of mention are : callizonus, bearing unusually large crimson flowers with carmine mark- ing, and needing a cool spot in well-drained sandy soil ; cal-alpinus, a hybrid between callizonus and alpinus, needs similar treatment to alpinus ; microlepis is a tiny Pink that hkes a well-drained soil of peat and loam. These choice Alpine Pinks are often grown in a moraine ; in other words, on a slightly sloping bank from which the soil has been removed about 18 inches deep and replaced by stone chips with which a small proportion of soil is mixed. Border Pinks may be described as the sweetest of early summer flowers. The parent of the garden Pinks is Dianthus plumarius a wild plant of Eastern Europe. Pinks are never more effective than when forming an edging to the flower border, as shown in one of the colour photographs. The two chief requirements of the Pink are a sunny position and well-drained soil. Propagation is by layering the shoots immediately after flowering, by cuttings or pipings taken off early in July and inserted in boxes of sandy soil in a cold frame, or under a handlight on a cool, half-shaded border. A third method is to lift, divide, and replant in September. Pinks are also easily raised from seeds sown in April and May in boxes of light soil out-of- doors or in a frame. The Pinks are divided into two sections, the Border and Laced kinds. The following are some of the best. Border varieties — Albino, pure white ; Anne Boleyn, rosy-purple, dark purple centre ; Ascot, pink, darker centre ; Excelsior, rose, crimson centre ; Gloriosa, deep 152 THE BOOK OF HARDY FLOWERS pink ; Her Majesty, pure white ; Mrs. Lakin, white, pink centre ; Mrs. Sinkins, pure white ; Progress, deep rose, crimson centre ; and Snow- flake, pure white. Laced varieties — Amy, maroon ; Chantilly, white, maroon centre ; Excellent, crimson ; Godfrey, reddish ; John Bull, dark plum ; Mrs. Waite, crimson ; Morna, maroon, crimson, and white ; Old Chelsea, rosy-red ; Reliance, red ; and Sarah, dark red. Several hybrid or Mule Pinks, crosses between two distinct types, have been raised in gardens : Napoleon III., crimson ; Lady Dixon, reddish crimson, and Marie Pare, pure white, are three of the best. Sweet William. — Dianthus barbatus, native of Southern and Eastern Europe, is the parent of the Sweet William. Seeds are sown outside during April or May, the seedlings, when large enough, being trans- planted, and in October or March — the former for preference — placed where they are to flower in June and July. The several strains of Sweet Williams have been considerably improved during recent years. This is particularly noticeable in the pink, salmon, and scarlet shades, of which, from seeds sold in separate packets, a very large percentage come true to colour. The following are distinct : Scarlet Beauty ; Pink Beauty ; Giant White ; Nigricans (dark crimson), dark red foliage and flowers; auriculaeflora (Auricula-eyed), white edge, coloured centre ; Harlequin, flowers individually of several colours, very striking ; the grandiflorus strain comprises many attractive shades of colour, and flore pleno is a distinct strain with double flowers. Chinese Pink. — Dianthus Chinensis, a Chinese kind, is really a biennial but more often treated as an annual, seeds being sown under glass in a heated greenhouse or frame in spring to produce flowering plants in July and August. From seed sown in a cold frame in August or September the plants will bloom in June. Plant outside towards the end of May in sunny positions, and rich, rather light garden soil. The numerous sorts grown in gardens are variously known as Chinese, Indian, and Japanese Pinks ; growing from 9 to 15 inches in height, they are very showy for beds and borders. There are varieties with single and double flowers. Seeds are sold in mixture or as follows : Heddewigii, a mixed strain ; Salmon Queen ; Scarlet Queen ; Single Pure White ; The Bride, white, rosy-purple eye ; Snowdrift, double white ; Fireball, double scarlet ; Laciniatus, fringed flowers in numer- ous colours. Carnation. — The parent of the Carnation is Dianthus Caryophyllus, a European species which is sometimes found wild in this country. Carnations thrive in well-dug garden soil ; if it is heavy, old mortar rubble should be mixed in when digging ; if light, add some turfy DIASCIA 153 soil. October and March are the best times to plant Carnations. In damp, low-lying districts and in town gardens it is sometimes found necessary to pot the layers in autumn, keep them in a cold frame during winter, and plant in spring. Wherever possible, however, autumn planting is desirable, as the Carnation is a perfectly hardy plant. Layering is the best method of propagation, this being done as soon as the flowers are over. Cuttings are sometimes inserted in August in a cold frame or under a handlight on a sheltered border outside. Carnations are readily raised from seeds sown in shallow pans or boxes from March to May and placed in a cool greenhouse or cold frame ; they must be planted permanently in September or October, and will bloom the following year. The Marguerite Carna- tions are a quick-flowering race of perpetual blooming Carnations. From seed sown in a warm greenhouse during February, the plants will bloom from August to October. A strain called Vanguard has similar characteristics, and flowers in six months from seed sowing. Carnations are divided into several sections : Selfs have flowers of one colour ; Fancies, the groundwork of one colour is marked with another ; Bizarres, the ground colour is striped with two or three others ; Flakes, white, striped with purple, scarlet, or rose. For the border the Selfs, Fancies, and Yellow Ground Picotees are the best. Twenty of the best Border Carnations are : Basuto, crimson ; Bookham White ; Border Yellow ; Brigadier, scarlet ; Daffodil, yellow ; Duchess of Wellington, lavender ; Elizabeth Shiffner, straw colour ; Ellen Douglas, silvery-grey ; Fujiyama, red ; Furthest North, white ; Greyhound, heliotrope ; Innocence, blush pink ; Miss Will- mott, coral pink ; Mrs. George Marshall, crimson ; Mrs. Griffith Jones, apricot ; Mrs. Robert Gordon, pink ; Purple Emperor ; Rosy Morn, rose ; Mrs. Andrew Brotherstone, purple and white ; Mrs. J.J. Keen, yellow, edged rose ; and Montrose, white with scarlet markings. The Picotee is similar to the Carnation, but the ground colour of white or yellow is edged with red, purple, scarlet, or rose. Diascia. — The only Diascia is a half-hardy annual, from South Africa, belonging to the Snapdragon family (Scrophulariaceae) ; it is of slender growth, 9 to 12 inches high, and bears coral pink flowers freely in summer. Seeds may be sown outside in April where the plants are to flower, or in a cold frame during March, the seedlings being subsequently transplanted. Rather light soil is suitable, and a sunny spot should be chosen. Dicentra {Lyre Flower or Bleeding Heart).— Some nine or ten species of this group of the Fumitory family (Fumariaceae) find a place in botanic gardens, but only two are in general cultivation. Chief of 154 THE BOOK OF HARDY ILCJWERS these is spcctabilis, perhaps more familiar as Dielytra spectabiHs, a native of China and Jaj)an, and known under tlic popular name of Bleeding Heart. It grows about 2 feet high, has elegant pinnate foliage, and during May and June bears graceful racemes of pink and white llowers. The plant starts into growth early in spring, and should be put in -a sheltered, partially-shaded border or on the west side of a fence ; it associates well with hardy ferns. Dicentra formosa, from North-Wcst America, has red or crimson llowers in May and early June. It grows only 6 to 9 inches high, and is useful fur the rock garden or for the front of the herbaceous border ; it needs shade during tlie hottest part of the day. The Diccntras prefer rather rich, light, well-drained soil. Previous to planting in September, work in plenty of leaf-mould and decayed manure. Increase is by division of tlie clumps in Se])tcniber. Tlie thick, lleshy roots should be pulled apart carefully with a hand-fork. Dicksonia. -Only one Dicksouia (member of the fern family, Filices) is hardy, and that is the North American kind, punctilobula. Tliis is a deciduous fern with creeping rhizomes and fragrant bipin- nate fronds, about 18 inches high. A shady i)c3sition and a soil of leaf-moidcl and pc>at are suitable. Increase is by division of roots or rhizomes in March. Dicksonia antarctica, an Australian 'I'ree Fern, grows out-of-doors in very warm nooks in the soutli-wost counties. In other parts of the country jilants in tubs or large pots are placed outside ill summer and returned to the cool greenhouse in autinnn. Dictamnus {Burning Jiush, ]''riixi)iflla).—'nicrc are several varieties of this hardy perennial, which belongs to the Kue family (Rutaceae), but tluy are all forms of Dictamnus albus (or jMaxinella, which is a commoner name in gardens). The plants grow 2 to 3 feet in height, flowering freely from June to August. The name l^urning Bush refers to a remarkable peculiarity of tlu> jilant. During hot sununer evenings the plants exude a volatile intlammable oil, and if a lighted match is apjilied it causes a bluish flame to envelop the plants. The chief varieties are : albus, jnn'e white, l£urope ; pur- })ureus (syn. Fraxinella), rc>ddish-pnr])le ; cancasicus, a strong-growing variety of the last-named with red-purple llowers, 4 feet high. The Fraxinellas thrive in light, rich, well-drained soil, and may be planted in sun or j>artial shade in Sei^lember, ()ctobc>r, and March. Increase is by seeds sown outside or in a cold frame when ripe, and by cuttings made of the thick, fleshy roots, preferably in March: Diervilla (Welgela) {Bnsh IIo)tcysncklt'). — A very useful group of hardy shrubs, belonging to the Honeysuckle family (Caprifoliaceae), for most of them bloom freely and the flowers are showy. They com- PINKS (DIANTHUS) IN A DRY STONK WALL THK CHEDDAR FINK (.DlANTHUS CAKSIUS) THK MAIDKN PINK (DIANTHUS DELTOIDES) BLUE ANNUAL LARKSPUR (DELPHINIUM) DIGITALIS 155 prise a useful set of garden hybrids which for decorative planting are even better than the species or wild types. The latter are found in China, Japan, Siberia, and North America ; all thrive in any good garden soil, moderately rich loam being preferable when available. Cuttings of soft shoots inserted in sandy soil in warmth during May and June form a sure and rapid means of increase. The species and more vigorous garden varieties may be thinned out after flower- ing every second or third year, taking care not to cut the younger shoots ; but the weaker sorts and those that bloom most freely are benefited by the removal of a certain amount of the older wood each year as soon as flowering is over. The Diervillas or Weigelas are useful for planting in a bed, for isolated specimens, groups in shrub- beries, or for forcing. A selection of the best includes : floribunda, native of Japan, 3 feet or so high : it provides a number of varieties in Lavallei, Lowei, and versicolor ; florida is a Chinese shrub, bearing reddish or rose- coloured flowers freely, the var. Candida has white flowers ; grandi- flora is a showy, free-flowering kind from Japan, growing 6 or 8 feet in height. Numerous hybrids have been raised between these species, and are known collectively as Diervilla hybrida. The following are all showy and useful : Abel Carriere, rich rose ; Eva Rathke, deep crim- son, blooms over a long season ; Conquete, deep rose ; Esperance, white, shaded rose ; Heroine, white, tinged rose ; Le Printemps, rose ; Mont Blanc, white. Diervilla japonica is a Japanese species of which the var. Hortensis has beautiful white flowers ; middendorfiana is a Siberian species with large sulphur-coloured blossoms, rather tender ; praecox is an early Japanese kind with deep rose flowers. Digitalis (Foxglove). — These are favourite old-fashioned garden plants for the flower and shrubbery borders, the wild garden, and for naturalising in half-shady nooks. They belong to the Snapdragon family (Scrophulariaceae). The plants thrive in ordinary soil, and though some of them flower a second time, the usual method is to treat them as biennials, sowing the seeds in April or May to produce flowering plants in June and July of the year following. However, self-sown seedlings come up in all sorts of places, and in the case of the Common Foxglove it is usually unnecessary to sow seeds. When sowing, scatter the seeds thinly where the plants are to flower, or sow in a border and transplant the seedlings in autumn. Digitalis purpurea (Common Foxglove), with purple, spotted flowers, grows 4 to 5 feet high, is native of Europe, and found wild in parts of Britain ; the 156 THE BOOK OF HARDY FLOWERS var. alba has white, more or less spotted flowers ; var. gloxinioides (monstrosa) has one very large flower at the top of the spike of normal blooms. For garden borders an improved strain, called Giant Spotted or Spotted Hybrids, is recommended. Giant Primrose is a most beautiful Foxglove, with rich cream or buff flowers. Those who desire further kinds may sow seeds of ambigua, yellow, 3 feet, Europe ; ferruginea, pale yellow, veined with purple, 4 feet, Europe ; laevigata, bronzy-yellow, 3 feet. Eastern Europe ; lanata, purplish flowers, 2 feet, Eastern Europe, and lutea, pale yellow, 3 feet, Europe. Dimorphotheca {Cape Marigold). — The kinds in cultivation are annuals : they belong to the Daisy family (Compositae). The Cape Marigolds must have warm, sunny positions in the garden, either on the rockery or a south border, and thrive best in light, well-drained loamy soil. Sow the seeds in April out-of-doors, where the plants are to flower. Dimorphotheca aurantiaca, the Orange Daisy, is a com- paratively recent introduction, and is now the most popular kind ; it is a South African annual, about 18 inches high, with orange-coloured flowers borne in profusion throughout the summer. The plants grow about I foot high, and commence flowering in seven or eight weeks from seed. For a small bed on the lawn this is one of the most useful and showy annuals. A strain with variously coloured flowers, obtained by crossing aurantiaca and pluvialis, is known as aurantiaca hybrida, and includes salmon, buff, apricot, yellow, primrose and white. Dimor- photheca Ecklonis has white flowers, shaded purple, it is from i^ to 2 feet high ; pluvialis has white yellow-centred flowers, shaded blue outside, and grows from i foot to i| feet high. Oioscorea (Yam). — Climbing plants (Natural Order Dioscoreaceae) with annual stems and tubers which, in the countries where they grow, are cooked and used as here we use potatoes. The flowers are incon- spicuous, but in large gardens the elegant twining growths may be used to clothe arbours, verandas, and bare fences. The two best- known kinds are Batatus, from the Philippines, and Decaisneana, from China. The annual stems grow to a height of some 6 to 8 ft. Increase is by division of the tubers in spring before growth starts. Diospyros {Persimmon). — Two hardy trees, Diospyros Lotus from temperate Asia and virginiana from the United States, are included in this group (Natural Order Ebenaceae). Neither is very decorative, though both are interesting and rather rare trees. Diospyros virginiana is the Persimmon of North America, and is curious by reason of the thick bark of mature trees being divided into cubes. Both grow in ordinary garden soil, are increased from seeds, and require sufficient pruning when young to ensure shapely trees. The wood of the American DIPELTA 157 tree is valuable for the manufacture of shuttles, etc., whilst that of several tropical kinds is extremely valuable on account of its colouring and hardness. Diospyros Ebcnum, from South India and Ceylon, is the Ebony of commerce, and Kurzii is the celebrated Andaman Marble or Zebra Wood. Another, Diospyros Kaki, of Japan, produces a valuable fruit which is known as the Kaki of Japan, or the Chinese Date Plum ; there arc many cultiv- ated varieties, which are used in a fresh and dried state. Fruits have been ripened on walls in the South of England, and the tree is suitable for cultivation in a greenhouse, where a crop of fruit is far more certain than out-of-doors.. Dipelta. — This is a new class of shrubs from China, allied to the Dier- villa and belonging to the Honeysuckle family (Caprifolia- ceae). The flowers are similar in shape to those of Dier- villa (Bush Honey- suckle), but have several minor structural differences, the most conspicuous being the presence of two bracts at the base of each flower which continue to grow after the flower fades and remain until the seeds are ripe. The cultural re- quirements are similar to those recommended for Diervilla. The chief species are : elegans, a bush 3 to 4 feet high ; floribunda, found in Hupeh, growing from 10 to 15, but sometimes 40 feet high : the flowers are borne in clusters during May and June, and are rose-pink without and white and orange within ; ventricosa, a bush 6 to 15 feet high. 158 THE BOOK OF HARDY FLOWERS bears clusters of flowers which are reddish-purple without and pale within ; Zunnenensis grows from 4 to 12 feet high and bears pale lilac flowers. Dipsacus (Teasel). — The Teasels (Natural Order Dipsaceae) are novel and interesting rather than showy flowering plants. They thrive in almost any soil, and though a plant or two may be included in the flower border, the best place for them is in the wild garden, shrub- bery border, and odd corners unsuitable for choice plants. The best known are Fullonum (Fuller's Teasel), with whitish flower-heads and pale purple anthers, July, 4 to 6 feet, Europe ; laciniatus, whitish flower-heads, red anthers, July, 3 to 5 feet, Siberia ; sylvestris (Common Teasel), pale lilac flower-heads, July, 6 feet, Europe, including Britain. The Teasels are best treated as biennials ; scatter the seeds in May where the plants are to flower the following summer. Disanthus cercidifolia is a rare shrub belonging to the Witch Hazel family (Hamamelidaceae). It is native of Japan, and forms a bush several feet high, with rounded or broadly heart-shaped leaves which turn to rich, vinous purple in autumn, a colour retained for several weeks. The flowers are small, but have not appeared freely in this country yet. It must be planted in a sheltered position in light, well-drained loam containing a little peat. Propagation is by imported seeds and layers, and no regular pruning is required. This shrub is well worth planting for the sake of its distinct autumn colouring ; few are more conspicuous. Discaria. — Three species of these curious shrubs (Natural Order Rhamnaceae) are sometimes grown in our gardens. They are : longi- spina, from Uruguay, serratifoHa, from Chili, and Toumatou (Wild Irishman), from New Zealand. All are intensely spiny bushes of somewhat rambling growth. The leaves are small and rather in- conspicuous, but the white flowers are borne freely. The Discarias are only suitable for the southern counties, where they may be grown in light loam in open borders or against a wall. Cuttings may be rooted, though propagation is usually by seeds. A little pruning is necessary now and then to keep the bushes within bounds. Dodder — {See Cuscuta.) Dodecatheon (American Cowslip, Shooting Stars). — Dainty dwarf perennials, members of the Primrose family (Primulaceae), natives of North America. The plants thrive best in a cool position, shaded from the mid-day sun, and like a compost of sandy loam, leaf-mould, and peat, together with an annual top-dressing of leaf-mould in March. The nodding flowers, which resemble those of Cyclamen, appear on a slender stem in early summer. If after three or four years the '« DORONICUM 159 plants show signs of deteriorating, they should be lifted in February, and some fresh soil added before replanting. They are propagated by division of the roots in February, and by seeds sown on moist soil in a cold frame as soon as ripe. The species and varieties generally grown are : Clevelandii, violet-purple, 18 inches ; Hendersoni, crim- son-violet, 12 inches ; Jeffreyi, rosy-purple, large handsome leaves, 18 inches ; Meadia (Common American Cowslip), rosy-purple, 12 inches. Good varieties of the last-named are album, white ; elegans, rich rosy-purple ; splendens, crimson with yellow ring ; and lilacinum, delicate lilac shade. Dog's Tooth Violet. — {See Erythronium.) Doronicum (Leopard's Bane). — Easily grown hardy herbaceous perennials (Natural Order Compositae), natives of Europe, flowering in spring and early summer ; the flowers are useful for cutting. There are few soils in which the Leopard's Bane will not thrive, and in full sun or shade the plants flower freely. Increase is by division, prefer- ably in September or October, also by seeds sown in a cold frame or outside in April or May. The chief kinds are : austriacum, golden- yellow, March to April, 12 to 18 inches ; caucasicum, bright yellow, March to Ma}'', 12 to 18 inches ; glaciale (syn. Clusii), rich yellow, ver^' free, March to June, i foot to 2 feet ; Pardalianches (Great Leopard's Bane), yellow, several flowers on a stem, April to June, i^ to 3 feet ; plantagineum, yellow, 2 to 3 feet, spring : the variety excelsum (syn. Harpur Crewe) has large golden-yellow blooms from April to July, and is very free flowering. This variety is the best of all and a splendid plant. Douglasia. — Alpine plants allied to the Androsace and belonging to the Primrose family (Primulaceae). The best-known species is vitaliana from the Pyrenees ; it is about 3 inches high and bears rich, yellow flowers from April to June. In some catalogues it appears as Androsace vitaliana. Douglasia laevigata is a dainty alpine of recent introduction, of dwarf, tufted habit, and with carmine flowers. The best position for these plants is a sunny place in the rock garden, and they need a well-drained calcareous soil, such as is provided by a limestone moraine. Seeds sown in a cold frame as soon as ripe, and di\asion in early spring, are the methods of propagation practised. Draba {Whitlow Grass). — Dwarf Alpines belonging to the Wall- flower family (Cruciferae), which thrive best in crevices between the stones in the rockery and on old walls ; they must have well-drained gritty soil, and a sunny position. They are hardy evergreen peren- nials, propagated by division in September or October and in spring by seeds, which should be scattered where the plants are to grow. i6o THE BOOK OF HARDY FLOWERS The best species are : aizoides, yellow, March to April, 3 inches, Europe ; Aizoon, yellow, April to May, 3 inches, Europe ; bruniae- folia, yellow, March, 3 inches, Caucasus ; pyrenaica, rosy-lilac, April to May, 3 inches, Pyrenees ; stellata, white, June to July, 6 inches, northern and arctic regions. Draba pyrenaica (syn. Petrocallis pyrenaica) needs special care, and the moraine, which consists of stone chips and very little soil, seems the best place for it ; it must be protected from wet in winter by glass, though this must not be so arranged as to exclude fresh air. Dracocephalum {Dragon's Head). — Mostly hardy perennials, be- longing to the Sage family (Labiatae), but at least one annual is in cultivation. They produce showy spikes, the flowers being arranged in whorls. A sunny position and ordinary, well-drained garden soil are suitable. Increase of the perennial species is by seeds sown in a cool greenhouse or frame in spring or early summer, division of the roots in February and March, and by cuttings made of the young shoots during April and May ; these root readily under a bell-glass in a cool greenhouse or frame. Seeds of the annual kind, Dracocephalum Moldavica, should be sown in April where the plants are to flower. The best kinds are : austriacum, blue, July to September, i| feet, Europe, etc ; Moldavica, violet, July to September, i foot, Siberia ; nutans (alpinum), blue, July to September, i foot, Eastern Russia; Ruprechtii, rosy-purple, July to August, 9 to 12 inches, Turkestan ; Ruyschianum, blue, July to September, 18 inches, Europe, etc. ; the var. Japonicum is blue and white, i| to 2 feet. Dracocephalum virginicum is synonymous with Physostegia virginiana {which see). Drimys. — This is a group of shrubs belonging to the Magnolia family (Magnoliaceae), of which two species, aromatica from Tasmania and Victoria, and Winteri from South America, form handsome ever- green bushes in the milder southern counties. The former grows into a dense shrub 8 or 10 feet high, bearing rather small leaves and white flowers, and the latter is from 12 to 15 feet high, with conspicuous oblong leaves up to 6 inches long, and bearing large loose heads of pale yellowish blossoms. Drimys Winteri is also of value (more especially in the Magellanic region), bj^ reason of its bark, which has medicinal properties. It is used as a tonic. Plant in ordinary garden soil in the warmer counties, increase by seeds, and prune in summer merely to keep the bushes shapely. Except in mild districts they must be grown as greenhouse plants. Dryas {Mountain Avens). — Dwarf evergreen alpine plants for the rockery. They belong to the Rose family (Rosaceae). Thej^ should be planted in well-drained soil containing a little peat with plenty ECCREMOCARPUS SCABER i6i of broken stone mixed in and placed on the surface ; slight shade is beneficial. Propagation is by division in autumn or spring, the former for preference, which is also the best time for replanting. Seeds are sown in a cold frame from April to June, while cuttings may be in- serted in pots of sandy soil in a frame during summer or early autumn. Dry as Drummondii, an evergreen trailer, bears golden-yellow blooms in summer, 4 to 6 inches, North America ; octopetala has white flowers with golden-yellow stamens, May to July, 4 to 6 inches, Europe, including Britain. Eccremocarpus scaber. — This is a handsome climbing plant of sub-shrubby habit, belonging to the Bignonia family (Bignoniaceae). It should be grown in a sheltered corner against a wall or trellis, and its branches be cut back quite half-way, or even to the ground hne, each winter or spring, but it may also be treated as an annual or biennial with good results, and this is the most satisfactory method for the colder parts of the country. Seeds are sown under glass in sandy soil during autumn or spring, and the young plants grown in a compost of 3 parts loam to i part leaf-mould with a little sand, ready for planting out in May. The larger the plants are at that time the better will be the results. If they are left out-of-doors through the winter it is a good plan to place a small heap of cinders over their base to give a little protection. This climber is a native of Chili, and the scarlet and orange flowers are very showy and freely produced in late summer. Echeveria. — {See Cotyledon.) Echinacea {Purple Cone Flower). — This is a showy, hardy peren- nial, closely allied to the Rudbeckia, with which it is sometimes in- cluded ; it belongs to the Daisy family (Compositae). The branching flower stems, which are stout and erect, reach a height of 3 to 4 feet, and bear star-like flowers, 4 inches across, of reddish-purple colour, with a black, cone-like disc. It is first-rate for cutting, as the flowers last a long time in water. The Echinacea, which is a native of North America, is readily increased by division, and will grow in any ordinary garden soil. Echinops {Globe Thistle). — The Globe Thistles are an ornamental and distinct class of hardy herbaceous perennials, natives chiefly of Mediterranean districts, and belonging to the Daisy family (Com- positae). The branching stems, which are from 3 to 6 feet high, are terminated by a globose head of Thistle-like blossoms of some shade of blue. The best are : bannaticus, deep blue ; humilis, a dwarf species with bright blue flowers ; Ritro, rich blue ; and sphaeroce- phalus, with silvery foliage and pale, steely blue flowers. They thrive i62 THE BOOK OF HARDY FLOWERS in ordinary soil, and can be increased by division, seeds, or root cut- tings ; the latter should be taken in winter, cut up into lengths of about 4 inches, and dibbled in a bed of sandy soil in the open ground. Owing to their bold appearance and indifference as to soil, the Globe Thistles are fit subjects for the wild garden. Echium (Bugloss). — A near relative of the Borage (Natural Order Boraginaceae), and, like that plant, having flowers chiefly of some shade of blue. The different kinds will grow in ordinary garden soil, and bear their attractive flowers from June to August. They are readily increased by division in autumn, or in some cases by seeds, which may be sown in the open border in spring. The chief sorts are : plantagineum, a biennial with flowers of rich purplish-blue, this must be raised from seed each summer ; Thomsonii, bright carmine ; and vulgare, with pretty blue and white flowers. All reach a height of 2 to 3 feet. Edelweiss. — (See Leontopodium.) Edgeworthia chrysantha is a Chinese and Japanese shrub belonging to the Natural Order Thymelaceae. It may be grown out-of-doors in the milder parts of the country, where its small, yellow- ish. Daphne-like flowers are produced in April or May. Elsewhere the protection of a cool greenhouse is necessary. Seeds are usually used for propagation, and it thrives in loamy soil or in loam containing leaf-mould or peat. No regular pruning is necessary ; simply shorten long branches to induce the basal buds to break into growth freely. From the bark of an allied species, Edgeworthia Gardner!, a fine kind of paper is manufactured in Nepal. Edraianthus. — (See Wahlenbergia.) Elaeagnus. — Ornamental evergreen and deciduous species of trees and shrubs (Natural Order Elaeagnaceae), most of which are suitable for outdoor cultivation in the British Isles. They are natives of the Mediterranean region, the Orient, China, Japan, and North America. The flowers of most kinds are white or cream and fragrant. In some cases they are followed by showy fruits, but their foliage is the chief attraction. They may be used for shrubberies, specimen bushes or groups, whilst they are available for all except the most exposed parts of the country. In some instances the foliage is green ; in others, silver ; whilst some have prettily variegated leaves. Good loamy soil meets their requirements ; it must, however, be well drained. It is usual to increase the species by seeds and the varieties by cuttings inserted in sandy soil in a frame in July. Pruning is restricted to keeping the bushes shapely, and the removal of green- leaved shoots from variegated kinds. This may be done in summer. ELLIOTTIA RACEMOSA 163 The chief sorts are : pungens, a Chinese and Japanese shrub, growing 12 or 15 feet high, with evergreen leaves ; the varieties aurea, aureo-picta, and Simoni have handsome golden variegated leaves ; angustifolia, of the Mediterranean region and the Orient, forms a small tree with narrow, silvery, deciduous leaves ; argentea is a silver-leaved kind from North America — it bears silver-coloured berries; macrophylla, a handsome evergreen, with greyish green leaves, native of Japan and Formosa, flowers during late autumn ; multiflora is a deciduous kind from China and Japan, which bears a large number of fragrant flowers in May, followed by showy fruits later ; it is some- times called longipes. Elliottia racemosa is one of the rarest shrubs in cultivation ; it belongs to the Heather family (Ericaceae). It has seldom been found in a state of nature, and few examples have been introduced to Europe. There is also a difiiculty in procuring seeds, whilst it apparently defies propagation by other methods. It is a deciduous, upright-growing bush from Georgia, growing at least 6 feet high, with handsome terminal panicles of showy, waxy white flowers, which open in July. A fine example is to be seen in the Royal Botanic Gardens, Kew, where it occupies a position amongst a bed of Heaths, the light loam con- taining a little peat in which the Heaths are at home, being apparently equally suitable for the Elliottia.- Elm. — {See Ulmus.) Elsholtzia Stauntoni is a sub-shrub from China, belonging to the Natural Order Labiatae. Of recent introduction, it is still a rare plant, but its free-flowering qualities and late blossoming season are bound to make it popular in the near future. Growing from 4 to 6 feet high, it looks more like a herbaceous plant than a shrub, although the lower parts of the branches are persistent. The ovate leaves are up to 6 inches long and fragrant, and the reddish or deep pink flowers are borne in very large terminal inflorescences in September. It may be used in the shrubbery or herbaceous border, and must be planted in good, deep loamy soil. Cut the branches well back after flowering. Elymus {Lyme Grass). — A fairly extensive group of Grasses (Naturcd Order Gramineae), none of which, however, is of any par- ticular garden value except Elymus glaucifolius, with leaves of grey- blue tint. This is desirable for waterside planting, and in such con- ditions flourishes. A second species, Elymus arenarius, though but a weed, is of value from the fact that, growing on the seaside as it does, it tends to bind the shifting sands together ; it progresses rapidly by means of long spreading underground rhizomes, so that it forms a living mat which prevents the sand being washed away. i64 THE BOOK OF HARDY FLOWERS Embothrium coccineum. — A remarkably handsome large shrub or small tree, belonging to the Natural Order Proteaceae, and native of South America ; it is hardy only in particularly favoured parts of Great Britain. In parts of Devon and Cornwall it forms quite a striking feature during its flowering period, which is early summer. Proximity to the sea seems to be particularly conducive to its welfare. This Embothrium forms a much-branched specimen clothed with Willow-like leaves, while the flowers, which are borne towards the ends of the shoots, are of somewhat similar shape to those of a Honey- suckle and of an orange-scarlet colour. A soil of sandy loam, with a little peat intermixed, is suitable. It is increased by seeds, which should be sown as soon as ripe in a mixture of loam, peat, and sand, and placed in the greenhouse. Providing it is in an open space, this shrub needs no pruning. Emilia coccinea {Tassel Flower). — This showy annual is generally met with in nurserymen's lists as Cacalia coccinea. It belongs to the Daisy family (Compositae), and is native of India. If sown out-of- doors during spring it flowers throughout the summer. The plant reaches a height of about i8 inches, and the flowers, which are in clusters like a bunch of tassels, are of orange-scarlet colour. It is a very distinct annual. Empetrum nigrum. — This is a prostrate-growing shrub (Natural Order Empetraceae), with small, dark evergreen leaves, and is widely distributed through the colder regions of the Northern Hemisphere. It is common in many parts of the Highlands of Scotland, where it is often found on rocky, mountainous land in exposed places. As it forms a dense, carpet-like mass it is useful for planting on dry banks or in rock gardens. The light-coloured flowers in May arc followed by showy, though small, bright black fruits at a later date. Pro- pagation is by seeds ; plant in light soil. Pruning is unnecessary. Enkianthus is a showy group of hardy or half-hardy deciduous shrubs, belonging to the Heather family (Ericaceae), and native of the Himalaya, China, and Japan. Like most other plants in the same order, they need moist soil which is fairly free from lime, and preferably containing peat. The flowers appear in May or June, usually with the young leaves, and they are white or sometimes reddish in colour. They should be given a sheltered position, where they are not affected by cold winds, for though perfectly hardy so far as winter cold is concerned, the young shoots are easily injured in spring. Pro- pagation is by seeds and cuttings, and no pruning is necessary other than that given by " stopping " the shoots of young plants to induce a bushy shape. The chief kinds are : campanulatus, a Japanese ONE OF THE MANY VARIETIES OF PERENNIAL LARKSPUR (DELPHINIUM) EOMECON CHIONANTHA 165 shrub, bearing red flowers in May ; cernuus, from Japan, having reddish blossoms ; himalaicus, native of the Himalaya and China, conspicuous by reason of its showy flowers, which, though usually yellowish, are sometimes red ; japonicus and quinqueflorus have, usually, white flowers, though those of some forms of the last-named are rose. Eomecon chionantha {Chinese Poppy Wort). — A pretty little member of the Poppy family (Papaveraceae), native of China, and seen at its best in a moist and partially shaded spot. It reaches a height of 12 inches or rather more, and has comparatively large heart-shaped leaves. The flowers, which open early in summer, are 2 inches or so in diameter, pure white, and very suggestive of those of a Poppy. It is an uncommon plant, and one that it is useless to attempt to grow in a hot, dry soil. Increase is mainly by division, which should be carried out just before growth recommences in spring ; this must be done very carefully, otherwise failure will result. Ephedra. — ^This group of shrubs, though possessing considerable scientific interest as being the connecting link between Conifers and other kinds of plants, is not of any great horticultural value. The Natural Order is Cynetaceae. The species are natives of North and South America, Europe, and Asia, and form dense masses of green Rush-like shoots sometimes 2 or 3 feet, at others less than i foot, high. They thrive in light soil on rocky ground, may be increased by seeds or division, and do not require regular pruning. Epigaea repens {May Flower). — This charming little shrub belongs to North America, and is a member of the Heather family (Ericaceae). It creeps along the ground, and spreads by means of shoots from the root-stock. The dark green oval leaves are thick and persist throughout the winter, and the fragrant, white, rose- tinted flowers appear in clusters about the points of the shoots in April and May. It requires light peaty soil which is always moist, and must be in partial shade, bright sun soon proving fatal. Usually grown in the rock garden. Propagation is by division of the clumps or by seeds. Pruning is not required. Epilobium {Willow Herb). — An extensive group of plants, be- longing to the Evening Primrose family (Onagraceae), and found wild in various parts of the world. Many of them are troublesome weeds in this and other countries, while on the other hand the Rose Bay (angustifolium) is exceedingly ornamental, and of great value for the waterside or wild garden ; it grows about 4 feet high, and in June and July bears long terminal spikes of bright rosy-purple blossoms ; there is a white varietv. Another desirable sort is Dodonoei, which i66 THE BOOK OF HARDY FLOWERS grows about 12 inches high and bears pretty, bright rose-coloured flowers from June to August ; it is a good rock garden plant for a sunny spot, and will stand drought well ; hirsutum, a British plant, known in some districts as Codlins and Cream, grows over 3 feet high, and has pale pink flowers in July ; it is essentially a plant for the wild garden, especially in moist spots. Hectorii is a tiny creep- ing plant from New Zealand with white flowers in summer ; it is used in the rock garden, as also is the Californian kind, obcordatum, which is of creeping growth, and has showy rose-coloured flowers throughout summer. The last to mention is sericeum, which grows 3 or 4 feet high. The flowers are rose-coloured and are produced for a long time ; it is fit only for the wild garden and waterside. All these Epilobiums are readily increased by division, which is best carried out in autumn. Epimedium (Barren Wort). — A very pretty race of spring and early summer flowering plants of herbaceous character, belonging to the Barberry family (Berberidaceae) ; they are natives of Europe and temperate Asia. They grow about 12 inches high, and the leaves, which are on twiggy stems, are of firm, leathery texture. In autumn the leaves of most kinds assume beautiful tints, and often persist until well on in winter. These plants need a fairly moist, partially shaded spot, and a soil chiefly of sandy peat. The flowers, which are in loose panicles, are of various shades of white, yellow, and red. All are increased by division, which may be carried out in August and September or in early spring. The best are : alpinum, crimson and yellow ; macranthum, white ; macranthum violaceum, purplish ; Musschianum, white ; Musschianum rubrum, red ; Perralderianum, sulphur-yellow ; pinnatum, deep yellow ; rubrum, red ; and versi- color, red and yellow. The sprays of beautifully tinted leaves are extremely useful in a cut state during autumn and early winter. In water they remain fresh and bright for a long time. Epipactis {Hellehorine). — A small group of terrestrial Orchids (Natural Order Orchidaceae), natives of the temperate regions of both hemispheres, and quite hardy in this country. They thrive in a compost of loam, peat, and sand in a moist, shady spot. The best are alba, with long racemes of white flowers ; gigantea, flowers dark brown and purple ; latifolia, greenish-purple ; and palustris, whitish, tinged with red. These Orchids reach a height of from i to 2 feet and flower in summer. They are all increased by division in late summer. Equieetum [Horsetail). — A strange class of leafless herbs (Natural Order Equisetaceae) with creeping perennial rootstock, and erect. GLOBE THISTLE (ECHINOPS RITRO) KING'S SPEAR (EREMURUS ROBUSTUS) PLANTAIN LILY (FUNKIA) A PERUVIAN FLOWERING SHRUB (FABIANA IMBRICATA) ERAGROSTIS 167 Rush-like, hollow, and jointed stems ; the secondary branches are disposed in regular whorls. Most of them are troublesome weeds, but some are useful for planting in moist spots, such as in boggy places or at the edge of the water. The best are : maximum, which in muddy places will reach a height of 6 feet, and sylvaticum, the most graceful of all ; this will thrive in the wild garden under drier conditions than the preceding, but still it needs a good deal of moisture. On no account should it be introduced into cultivated ground, as it is a most pernicious weed. Eragrostis {Love Grass), — Some very pretty grasses, both annual and perennial, are included among the various Eragrostis (Natural Order Gramineae). Those most generally grown for garden purposes are the annual kinds, elegans and maxima. The inflorescences of both are light and graceful, and if cut before they are too ripe and hung up to dry, they are useful for winter decoration. Eragrostis elegans reaches a height of about i8 inches, while the other is taller. Seeds of both may be sown out-of-doors in spring, and the flower-heads will develop in the course of the summer. They grow readily in ordinary garden soil. Eranthis hyemalis {Wititer Aconite). — A delightful flower of early spring ; though the period of blooming varies somewhat with the season it is often in flower by January, while sometimes not over until March. It belongs to the Buttercup family (Ranunculaceae), is native of various parts of Europe, and a very old inhabitant of our gardens. The large Buttercup-like yellow flowers are encircled by a frill of green leaves, and the whole plant is not more than about 4 inches high when in bloom. It succeeds in ordinary garden soil, and whetlier as an edging to the flower border or grouped in the rock garden or under deciduous shrubs, it is equally appreciated, as prac- tically the first of the New Year's flowers. It may also be planted in short grass. The small and curious tubers (roots) of the Winter Aconite may be bought cheaply, and should be planted in July and August or early September at the latest. A second kind, cilicicus, is in cultivation, but it is not common. The flowers of this are deeper in colour and later than those of the common Winter Aconite. Ercilla volubllls. — The chief in- terest attached to this plant (Natural .. . . . THE WINTER ACONITE Order Phytolaccaceae) lies in its being (Eranthis hyemuUs) i68 THE BOOK OF HARDY FLOWERS an evergreen, self-clinging, climbing plant. It is a native of Chili and Peru, and can only be considered hardy in the milder parts of the country, although it may be grown against a wall in many places. It has bright green oblong leaves and small spikes of brownish Hewers. The long trailing shoots produce aerial roots after the manner of the Ivy. Propagation may be carried out in summer by means of cuttings inserted in sandy soil in a frame. Any good garden soil suits its requirements, and pruning may be carried out in spring, all surplus growth then being cut back to within a bud or two of the main shoots. This climber is known also as Bridgesia spicata. Eremurus {Giant Asphodel). — The Eremuri are among the most stately of herbaceous perennials ; they belong to the Lily family (Liliaceae), and are natives chiefly of Central Asia. The leaves are long and strap-shaped, and from the centre of the tuft the flower spike arises. It is erect, as straight as a gun barrel, and in some kinds from 8 to lo feet in height. The upper half of the stem con- sists of a cylindrical spike of blossoms, which continue to unfold as the stem lengthens, the flowers are closely packed together, and a succession is kept up for some time during May, June, and July. The roots of the Eremuri are no less remarkable than the flowers, particularly those of Eremurus robustus and its varieties ; the stout, fieshy roots radiate from the central crown like the spokes of a wheel, of which the crown itself forms the hub. As the roots are brittle and extend in a horizontal direction, it is evident that special care is needed in planting ; the leaves appear early in spring, so a sheltered spot should be chosen for planting. Well-drained loam meets their requirements, they will not thrive in cold, heavy soil ; some well decayed manure may with advantage be mixed with the original soil. Planting is best carried out in the autumn, and as the Eremuri are none too hardy, a slight covering of decayed leaves should be given, at all events during the first winter. The roots are put about 6 inches below the surface, and the hole prepared must be sufficiently wide to allow of the roots being spread out in a natural manner. Eremuri are increased by means of seeds, which ripen freely if the flowers are artificially fertilised. The seeds are sown as soon as ripe, and pro- tected by a frame until they are large enough to plant out. The smaller kinds, such as Eremurus Bungei, produce offsets much more freely than the others. When planted in a bed or clump, Eremuri are seen to the best advantage against a background of shrubs, or a few plants look especially well in a large rock garden. If planted in a group the stronger growing kinds ought to be put from 5 to 6 feet apart. ERIANTHUS 169 The best-known kinds are : Bungei, from 4 to 6 feet in height, with clear, yellow flowers ; Himalaicus, white, 6 to 8 feet ; Himrob, pale pink, 8 feet ; Olgae, somewhat similar to Bungei, with white red-tinted flowers ; robustus, the giant of the group, with rosy-pink- coloured flowers, 10 feet ; robustus Elwesianus, flowers deeper colour ; and Warei, 6 to 8 feet, with reddish -bronze flowers; Erianthus. — A small group of Grasses (Natural Order Gramineae), natives of different parts of the globe. The only species in general cultivation is Erianthus Ravennae, an ornamental perennial kind, with showy purplish plumes, seen to the best advantage during a hot summer. It will thrive in ordinary>soil, but as warm a spot as possible should be chosen for it ; the flower stem will reach a height of 6 feet. Erica (Heath). — This is a very important group (Natural Order Ericaceae), inasmuch as it includes all the plants, hardy and tender, which are known under the popular name of Heath. Other plants are sometimes called Heaths, though this name is correctly apphed to Erica only. The Ericas are found in two widely separate regions, Europe and South Africa. Those from South Africa are generally too tender for outdoor cultivation in the British Isles, though a few of the hardier kinds have been planted with success in Cornwall. About the middle of last century they were amongst the most popular of greenhouse plants, many varieties being grown, and the successful management of a collection was considered to be the supreme test of a gardener's skill. Now few sorts are grown, and their cultivation is usually in the hands of a few commercial firms, who grow the plants to flowering size and then place them on the market. As a rule, they are destroyed after flowering, although by care they may be kept for years. With the European sorts it is quite different, for they have never been more popular than at present. Although all are not hardy throughout the British Isles, those from the more northerly regions are, whilst the southern sorts are appropriate for all the milder counties. Several species are natives of the British Isles. Cultivation of the hardy kinds offers no serious difficulties, providing lime is not present in the soil to any serious extent. Even then one or two kinds may be grown. They thrive in both peat and loam, and give excellent results in sandy soil in which a little peat or leaf- mould has been dug. In preparing ground for Heaths, remove the turf or coarse weeds, then dig it over, aftervi^ards forking leaf-mould or peat into the upper few inches. Plant in autumn or early spring, and be careful to water when necessary and keep the ground free from weeds until the plants can look after themselves. 170 THE BOOK OF HARDY FLOWERS Propagation may be effected by means of seeds, layers, or cuttings. Perhaps the last-named method is the best. Cuttings must be taken during July or August and dibbled into pots of sandy peat made very firm, each pot then being placed under a bell-glass or handlight until the cuttings are rooted. They are then planted in a reserve border, and the points of the shoots must be removed frequently to induce a bushy habit. Pruning in after-life is restricted to cutting back the flower-bearing shoots as soon as the blossoms are over. The tender kinds are also increased by cuttings, but they are grown in pots in a greenhouse throughout the greater part of the year. They are, however, usually plunged out-of-doors from the end of June to the end of August. The best results are obtained when they are placed in a light and airy house, on a stage covered with ashes. No artificial heat should be given until the temperature is likely to fall below 35'* F. Careful watering, thorough drainage, and firm potting in sandy peat are essential to success. A good selection of hardy kinds includes : arborea, Tree Heath, native of the Mediterranean region, etc., grows 6 to 20 feet high and bears white fragrant flowers from March to May, heirdy in the milder counties — the var. alpina has brighter green leaves, and is of more upright growth ; australis, from Portugal, is another kind from the milder counties, it grows from 4 to 6 feet high, is of straggling habit, and bears large red flowers freely from March to May ; carnea is a very hardy kind from the European Alps, growing 6 to 9 inches high, it bears reddish flowers from early February to May — the var. alba has white flowers ; ciliaris is a creeping species which is found wild in the south-west counties of England, its red flowers are borne in summer : Maweana is a denser growing variety, 6 to 9 inches high, and one of the best of the late summer-flowering sorts. Erica cinerea, the Common Heather of our commons and hill-sides, is a well-known decorative shrub of dwarf habit. Alba, white ; atro- purpurea, purple ; atrosanguinea, rich red ; coccinea, scarlet ; and rosea, rose, are all excellent varieties. Lusitanica, often called codo- nodes, is largely grown in the South of England ; its plumose branches, clothed with bright green leaves, are often 4 to 8 feet high, the white flowers commence to open in November, and flowers may still be found at the end of April. Mediterranea, a handsome kind from South- West Europe, forms a bush 4 to 12 feet high ; it may be grown from the Midlands southwards and bears reddish flowers from February to May ; alba, white ; hibernica, a variety found in Ireland, and nana, of dwarf habit, are useful varieties ; one called hybrida is a cross ERIGERON 171 between mediterranea and carnea : it grows 12 to 15 inches high, and blooms continuously from November to May. Erica stricta is a Heath of stiff growth from South Europe, the red flowers open in July ; vagans, the Cornish Heath, is a very useful autumn-flowering sort : there are forms with red, white, and pink blooms ; Veitchii, a hybrid between arborea and lusitanica, bears its white flowers with great freedom in spring. Among the chief greenhouse kinds are : caffra, an easily grown white-flowered kind from South Africa ; Cavendishiana, a yellow- flowered hybrid with long, handsome, wax-like flowers ; gracilis, a handsome dwarf, autumn-flowering species with reddish flowers ; hyemalis, a popular spring- flowering kind, with long, tubular, red and white blossoms ; and melanthera, a vigorous white-flowered Heath from South Africa. Erigeron {Flea Bane). — Aster-like plants (Natural Order Com- positae), natives largely of North America, though some occur in the temperate regions of the Eastern Hemisphere. They will grow in ordinary garden soil, and may be readily increased by means of division in autumn, or by seeds sown in spring. The best are : alpinus, purplish blue, June and July, 9 inches ; aurantiacus, bright orange, all summer, 6 inches ; Coulterii, white, June to August, 12 inches ; glabellus, violet, summer, 9 inches ; glaucus, purple, June to August, 12 inches ; grandiflorus, lavender, summer, 18 inches ; mucronatus, white, all the summer, 4 inches ; philadelphicus, rose, from spring until autumn, 2 feet, and speciosus, with its varieties. The typical Erigeron speciosus, which reaches a height of 2 feet, bears a profusion of deep mauve, Daisy-like flowers for several weeks in summer. There are some distinct forms of this species, namely : Asa Gray, apricot buff ; Edina, white ; and Quakeress, lavender-blue. They are among the most useful of hardy border plants, and the flowers are valuable for cutting. After the earlier blooms are cut, secondary ones soon appear. Erinacea pungens is a charming little plant for the rockery. It belongs to the Pea family (Leguminosae), and is a native of the Eastern Pyrenees and North- West Africa, Of tufted habit, it rises but a few inches above the ground and grows slowly, the branches having the peculiar rigid, stunted appearance common to many plants which occupy stony, arid regions. The Pea-shaped flowers are violet or bluish in colour and very attractive. In addition to being useful for the rock garden, it may be planted on dry, sunny banks. Propagation is by seeds, cuttings, or layers ; loamy soil is suitable, and pruning is unnecessary. Erinus alpinus. — An attractive rock garden plant, and equally 172 THE BOOK OF HARDY FLOWERS desirable for wall gardening. It belongs to the Snapdragon family (Scrophulariaceae), and is native of the mountains of Western Europe. In narrow crevices and among the rocks it will grow and flower freely in light soil from April to June, soon forming a fair-sized plant. It may be increased by division, or, better still, by sowing seeds as soon as ripe where the plants are to grow. The plant itself is about 4 inches high, and the flowers are rosy-purple. There are two distinct varieties : albus, white, and carmineus, bright carmine. Eriobotrya japonica {Loquat). — This shrub belongs to the Rose family (Rosaceae), is native of China and Japan, and is closely allied to the Medlar. It is, however, abundantly distinct both by its large, handsome, persistent leaves and by its clusters of golden fruits. In the mildest parts of the country it succeeds in sheltered places and against walls out-of-doors, and the white hawthorn-scented flowers are often borne late in the year. Fruits are, however, rarely developed here, though they are common and used for dessert in the South of France. However, the greyish oblong leaves, which are up to 12 inches long on vigorous plants, make it of sufficient importance for decorative gardening. Plant in loamy soil, increase by means of seeds, and prune in spring, but only when the plants are outgrowing their positions. Eriogonum. — Although this is an extensive group of plants, few are in general cultivation. They belong to the Natural Order Polygonaceae, and are native of North America. The best and prac- tically the only one that can be obtained from nurseries is Eriogonum umbellatum, a pretty little rock plant that forms tufts about 9 inches high, and bears small umbels of bright yellow flowers during summer. It prefers a well-drained, sunny spot and peaty soil, and can be readily increased by division. Eriophorum {Cotton Grass).— Grass-hke plants of the Sedge family (Cyperaceae), several of which are natives of Britain. The most desirable is angustifolum, about 2 feet high, bearing tufts of cottony white flower-heads. It is suitable for planting by the water's edge. Eritrichfum The chief plant of this genus, which belongs to the Borage family (Boraginaceae), is Eritrichium nanum, a lovely miniature alpine plant that is very difficult to grow, and sometimes referred to as the Glory of the Alps. It is a tiny Forget-me-not -hke plant, about 3 inches high ; the blossoms are of brilliant sky blue with yellow centre, and open in early summer. In the Swiss Alps where it grows wild, it lives in rocky crevices, and during winter is covered with deep snow. In our rock gardens it is most likely to succeed in the moraine, in stone chips mixed with a little sandy loam, Q CO ERODIUM 173 and when supplied with moisture from below. It needs to be sheltered by glass in winter to keep off heavy rains, though air must not be excluded. No one manages to keep it alive for very long. Erodium (Heron's Bill). — These, which belong to the Geranium family (Geraniaceae), may be looked upon as dwarf forms of the hardy Geraniums, though most of them have markedly pinnate leaves. They are natives principally of the Mediterranean region, and thrive best on dry, sunny parts of rockwork, where they will bloom almost continuously throughout late spring and in summer. They are readily increased by seeds in spring or by division in September, and sandy loam suits them best. The most desirable are : alpinum, purple, 12 inches ; chrysanthum, yellowish, 6 inches ; guttatum, white, 6 inches ; hymenoides, white, lower petals lined purple, 12 inches or more ; macradenum, white, marked with violet, 6 inches ; Mane- scavi, reddish-rose, 18 inches ; Reichardii, white, veined pink, 2 inches ; and Sibthorpii, pale lilac, 2 inches. Eryngium {Sea Holly). — A striking group of summer-flowering, hardy, herbaceous perennials, belonging to the Natural Order Umbelli- ferae, natives principally of Mediterranean districts and South America. In general appearance they are somewhat Thistle-like, and are remarkable for the more or less blue tone of the foliage and flower heads. If cut when at their best and dried the flowers retain their colour for a long time. Eryngiums thrive in ordinary garden soil, and should be planted in full sunshine, as this tends to bring out the metallic blue lustre. They are readily increased by division in autumn. The most striking are : alpinum, flower-heads and leaves metallic blue, 3 feet ; amethystinum, delightful amethyst blue ; Bour- gatii, 18 inches ; giganteum, silvery white stems and flower-heads ; Oliverianum, one of the finest coloured of all ; pandanaefolium, a tall grower, suitable for the wild garden ; planum, the blue flower-heads of which are small and exceedingly numerous ; and Zabelii, a finely coloured kind. Most of those of which the height is not given are from 3 to 4 feet. Erysimum (Fairy Wallflower). — These plants are nearly related to the Wallflowers, to which some of the species bear a great resem- blance. They belong to the same family (Cruciferae). There are both annual and perennial species, all easily grown, and usually raised from seed sown in autumn or spring. Of the annuals two are very showy : arkansanum, with bright yellow blossoms, like small Wall- flowers ; and Perofskianum, in which they are rich orange. Both these are among the most accommodating of hardy annuals, and if sown in autumn will survive the winter and flower in spring ; those 174 THE BOOK OF HARDY FLOWERS sown in April will make rapid progress and yield a wealth of blossoms in summer. Self-sown seedlings frequently spring up in considerable numbers. The best kinds, in addition to those named, are : asperum, yellow, 8 inches, biennial ; asperum purpureum, purple ; helveticum, orange, 12 inches, perennial ; pulchcllum, yellow, 6 inches, perennial ; pumilum, yellow, 2 inches, perennial ; and rupestre, about 3 inches, perennial. The three last-named are easily grown rock garden plants. Erythraea (Centaury). — Pretty flowering plants, nearly related to the Gentian (Natural Order Gentianaceae). They are widely dis- tributed in various countries. Some are only of annual duration, one of the best of this class being Centaurium, which grows about 12 inches high and bears bright rose-coloured blossoms during summer. Other annual kinds are spicata and venusta, both with pink flowers. Of the perennials practically the only one met with in gardens is Mussonii, more generally known as diffusa ; this forms a neat-growing little plant about 4 inches high, studded with bright rose-coloured flowers throughout the summer. It is suitable for a sunny spot in the rock garden. The annuals seed freely, and the last-named kind may be increased by division, best carried out in late summer or early spring before growth recommences. Erythrina (Coral Tree). — Several of the Erythrinas, which belong to the Pea family (Leguminosae), form good-sized trees in warmer countries, and with us need the accommodation of a large glass house. Practically the only one grown in gardens is the Brazilian Erythrina Crista galli, which is used for summer bedding. It forms a stout, woody rootstock, from which annual shoots grow 3 or 4 feet high ; these are furnished with trifoliate leaves, and during August bear deep scarlet Pea-shaped blossoms. After flowering the stems gradu- ally die away, leaving only the sturdy rootstock or trunk. This ought to be wintered where it is safe from frost, during which period it must be kept practically dry at the root. In spring, when young shoots make their appearance, a light position in the greenhouse is necessary. The plants, kept in their large pots or tubs, are placed out-of-doors in early June. If the plants need repotting it should be done in spring before growth recommences, using for the purpose a compost made up of loam, leaf-mould, and sand. However, when established in large pots, annual re-potting is not needed. If planted in a sunny corner formed by two greenhouses or walls, the Erythrina will pass the winter if the dormant root is protected by mats. It is propagated by cuttings of the weakest of the young shoots taken in spring, when they are 4 inches long, and put in pots of sandy ERYTHRONIUM 175 soil in a closed case in the greenhouse. A second species, even hardier than the other, is herbacea, from the Southern United States. It is, however, not much grown, as it often fails to flower in a satisfactory manner. Erythronium {Dog's Tooth Violet). — A charming group of early spring flowers, belonging to the Lily family (Liliaceae). They form small, curious-shaped bulbs, suggestive of a dog's tooth, hence the popular name. The leaves, which are broadly oval, are mottled and marbled with purplish-brown and white, and are attractive in early spring. The solitary drooping flowers are about 2 inches in diameter with re- fiexed segments, and on stems about 6 inches high. This description refers especially to the European Dog's Tooth Violet (Erythronium Dens- canis), but a strong family likeness runs through all of them. The flowers of Dens- canis vary from white to purple, through various inter- mediate shades of pink and rose. There are also some fine varieties raised in Holland, which are likely to supersede the common kind. Erythro- niums may be planted towards the front of the flower border, and are also favourite rock garden plants. They prefer partial shade and a moist, peaty or leafy soil. The American kinds need a sunnier spot than the others. Chief among them are : albi- dum, white, purple tinted ; americanum, yellow ; grandiflorum, bright yellow ; Hartwegii, yellow ; Hendersonii, pale purple ; Howellii, pale yellow, orange base, suffused purple ; Nuttallianum, yellow, red anthers ; and revolutum, pinkish-purple, afterwards deepening in colour. Escal Ionia. — Important shrubs belonging to the Natural Order Saxifragaceae ; the majority are evergreens and bear showy flowers. They are largely natives of Chili, a few coming from adjoining countries. THE DOG'S TOOTH VIOLET (Erythronium) 176 THE BOOK OF HARDY FLOWERS whilst several useful hybrids have been raised. Unfortunately, they are not very hardy, and with a few exceptions are only available for the mildest parts of the country. There, however, they are invalu- able, for they thrive close to the sea, and one kind particularly, Escal- lonia macrantha, from Chiloe, can be used for hedges to protect other plants which are more susceptible to injury from the sea air. They thrive in any good garden soil, are easily increased from cuttings in summer, and require no regular pruning. Plants grown against waJls or bushes which are outgrowing their positions, may be cut back in spring. As groups in the shrubbery or as specimen plants or hedges, Escallonias are useful. The hardiest kinds are the white-flowered philippiana from Valdivia, a deciduous shrub 3 to 4 feet high ; Lang- leyensis, an attractive garden hybrid of loose growth, which bears showy pink flowers with the greatest freedom ; and the white-flowered exoniensis, which forms a bush 15 feet or more high. For the milder counties Escallonia macrantha is the most useful of all ; it is an ever- green with bold dark green leaves, and it bears a profusion of rich rose-coloured flowers. Other good sorts are : floribunda, pterocladon, pulverulenta, and rubra ; montevidensis should be grown against a wall ; it bears large heads of white flowers late in the summer. Eschacholtzia [Calif ornian Poppy). — One of the showiest of hardy annuals ; it belongs to the Poppy family (Natural Order Papaveraceae). The typical Eschscholtzia californica, which has given rise to the various forms now in cultivation, forms a wide-spreading plant from 12 to 18 inches high, with pretty, much-divided, glaucous foliage, and bears for weeks in summer large Poppy-like flowers of brilliant yellow with orange centre. The range in colour of the garden varieties is now considerable, varying as they do from almost white to deep ruby red. Among the best are : Carmine King, rich carmine, suffused with orange ; Diana, pale pink ; Mandarin, orange, scarlet, and gold ; Mikado, orange-crimson ; Rose Cardinal, deep rose ; and Ruby King, deep ruby. Eschscholtzias are not at all particular as to soil ; they will grow on poor ground, but they must have a sunny spot, as it is only then that their brilliant flowers ate seen at their best. The seed-pods must be cut off as soon as the flowers drop, or the period of blooming is shortened. The seed may be sown either in autumn or spring ; the seedlings should be thinned out to about 9 inches apart. Eucalyptus [Blue Gum). — Among the Eucalyptus, which belong to the Natural Order Myrtaceae, are found the largest growing trees of the Southern Hemisphere, and probably of the world, for some are said to exceed the dimensions of the Sequoias of California ; the timber of numerous kinds is very hard and durable. Jarrah and Karri, which EUCHARIDIUM 177 are probably the two most serviceable woods known, and are used for street paving, are species of Eucalyptus, the former being the wood of marginata and the latter of diversicolor. Although natives of Australia, the Eucalyptus adapt themselves quickly to the conditions of other countries, and large quantities are being grown in South Africa, British Central Africa, California, and elsewhere. Many of them can be grown out-of-doors in the milder parts of the British Isles. The hardiest is Gunnii, after which come Globulus, amygdalina, and robusta. Eucalyptus Globulus is often grown in pots, and is used for summer bedding on account of its showy glaucous blue leaves. There are trees 30 to 40 feet or more high in Cornwall. Plant in any good garden soil. Regular pruning is unnecessary. Most of the Euca- lyptus are easily raised from seed sown in a greenhouse in spring, and grow quickly. Eucharidium. — Two useful summer flowering annuals, natives of California, are found among Eucharidium, which belongs to the Evening Primrose family (Onagraceae). They are very uncommon, but well worth more extended cultivation. Eucharidium Breweri is about 6 inches high, with pale rose-coloured blossoms ; while those of concinnum, a somewhat taller plant, vary from lilac to purple. The seed may be sown in early autumn for early summer bloom, while a sowing in April will give a display from July onwards. Well-drained sandy loam is a suitable soil, though these plants are not fastidious, but full exposure to sunshine is necessary. Eucomis. — Pretty, free-flowering, bulbous plants, members of the Lily family (Liliaceae), and natives of South Africa. The hardiest and most ornamental kind is punctata, which forms a tuft of prettily undulated leaves, and produces a stout, erect flower stem, 2 feet high, and curiously mottled with brown, bearing in summer or early autumn numerous blossoms ; these, which are crowded together on the upper part of the stem, are greenish-white, tinged with rose. Other kinds are : pallidiflora, taller and with greenish-white flowers, and regia, white. Eucomis is not thoroughly hardy, and is usually grown in a greenhouse. The plants will, however, thrive in a narrow, sunny border at the foot of a south wall, providing the soil is good loam and well drained ; the bulbs should be planted about 6 inches deep. Planting is best done in autumn as soon as the leaves die down, and the bulbs may be protected in winter by a few leaves or Cocoanut fibre refuse. They produce offsets which are available for purposes of propagation, while they can also be raised from seeds ; in the open these rarely ripen, but they will do so if the flowers are artificially pollinated and the plants kept in the greenhouse. 178 THE BOOK OF HARDY FLOWERS Eucommia ulmifolia is a new slirub from China, belonging to the Natural Order Trochodendraceae. It is of rapid growth, and forms an upright-growing tree or large busli. There is nothing, how- ever, about either flowers or leaves to attract attention, but it is of interest because all parts of the plant contain caoutchouc, or an inferior kind of rubber, a product which is not known to occur in any other tree or shrub hardy in this country. In China the bark is said to be a valuable medicine. Male and female flowers are produced on different plants, but neither is showy. Plant in loamy soil, propagate from cut- tings, and cut away the lower branches when necessary, clearing the leading shoot and shortening the sideshoots at the same time. Summer is a good time for the work, Eucryphia. — This is a very showy group of shrubs, belonging to the Rose family (Rosaceae). Three species are in cultivation : Billardieri from Tasmania, and cordifolia and pinnatifolia from Chili. The last- named is the best known and hardiest ; it grows to a height of from 12 to 20 feet, with a wide spread. The dark green leaves are usually made up of about five narrow leaflets, which may be either deciduous or persistent, according to the climatic conditions. The white flowers are nearly 3 inches across ; they are borne in July in sufficient numbers almost to hide the leaves. Eucryphia cordifolia is an equally showy bush with simple, oblong, evergreen leaves and white flowers. It is more tender, and only suitable for the warmer counties. The Tas- manian kind has smaller leaves and flowers, and is an inferior bush. Plant in well-drained warm loam containing a little peat, and pro- pagate from seeds whenever it is possible. Plants are sometimes raised from layers, but they are never very satisfactory. No regular pruning is required, but a few of the weaker inside shoots may be removed occasionally. It is not wise to transplant the bushes oftener than is absolutely necessary. Eugenia. — A large group of trees and shrubs allied to the Myrtles (Natural Order M5nrtaceae). Several grown in the gardens of the south-west counties under the name of Eugenia are really species of Myrtus. Thus Eugenia apculata is really Myrtus Luma and Eugenia Ugni is Myrtus Ugni. These are referred to under Myrtus. The majority of the true Eugenias are tropical trees or shrubs which are widely distributed in Brazil, India, Malaya, Australia, and other countries. Many of them bear handsome edible fruits. Of these Jambos, the Rose Apple of tropical Asia, and malaccensis, the Malay Apple, are two of the best known. The wood of some kinds is also of value. A few are sometimes grown in tropical glasshouses in this country, but they are not common. EULALIA 179 Eulalia (Miscanthus).— An ornamental group of Grasses (Natural Order Gramineae), natives of China and Japan. The only kind in general cultivation is Eulalia japonica with its varieties. This forms a tuft of tall stems to a height of 5 to 6 feet or even more, the leaves recurve in a graceful manner, while the crown-like inflorescence, which well overtops the foliage, is striking. The varieties are : albo lineata, leaves striped with white ; gracillima, of graceful habit, the long, narrow leaves having a white midrib ; and zebrina, remarkable from the fact that bars of yellow run across the leaves instead of longitu- dinally, as in most variegated-leaved Grasses. Eulalias thrive in ordinary garden soil, provided it is fairly moist, while they are effective by the side of water. Two varieties, namely, albo lineata and gracillima, when grown in pots are sometimes used as " dot " plants in summer bedding. Euonymus. — Evergreen and deciduous shrubs (Natural Order Celastraceae), which are of con- siderable value in the garden. A few kinds are not generally hardy, however. The majority bear hand- some fruits, and are cultivated for that purpose alone ; others are grown for their evergreen leaves and their ability to withstand the effects of a salt-laden atmosphere within a few feet of high-water mark near the sea ; whilst others, again, are showy in autumn by reason of their richly coloured leaves. They are found in Europe, Asia, and North America, whilst one species, europaeus, is included in the British flora. They thrive in ordinary garden soil, are propagated by seeds or cuttings, one kind, radicans, by division, and any necessary pruning should be done in summer. Euonymus alatus is most showy by reason of its autumn tints, whilst the fruits of europaeus, americanus, lati- folius, and oxyphyllus are very attractive. Euonymus japonicus is very useful, as it forms a large bush quite close to the sea, and can be used for all kinds of purposes, including hedges. Its rich dark green leaves are always attractive, whilst its golden- and silver-leaved varieties are in constant use as garden shrubs in the south and for greenhouse decoration farther north. Its one defect — at least in FRUITS OF THE SPINDLE TREE (Euonymus europaeus) i8o THE BOOK OF HARDY FLOWERS inland gardens — is its liability to attacks from caterpillars of, chiefly, the Magpie Moth. Euonymus radicans is also useful, as it grows almost as well as the common Ivy beneath the shade of trees. The clumps may be divided and the sections planted 12 inches apart on bare ground, when they will soon grow into a dense mass. By clipping over in May or June a good carpet is formed ; both green and silver varieties can be procured. Eupatorium {Hemp Agrimony). — Herbaceous perennials or sub- shrubs belonging to the Daisy family (Compositae), and natives chiefly of the Western Hemisphere. Those from North America are quite hardy, while some tender kinds, fit only for the greenhouse, occur farther south. Those suitable for the herbaceous border, or for the wild garden, for they will hold their own almost anywhere, even in boggy places, are : ageratoides, 3 or 4 feet high, with large heads of small white flowers in late summer and early autumn ; cannabinum (native of Britain), taller, bears terminal umbels of pink flowers in late summer, while the North American kind, purpureum, has deep purple flowers. This, which blooms at the same season, grows 5 or 6 feet high. All are readily increased by division. Euphorbia (Spurge). — There are hundreds of Euphorbias (Natural Order Euphorbiaceae), but few of them are of garden value, and some are tender and quite unfitted for the open garden. Among the best are : capitata, 16 inches high, with little grey Box-like foliage and yellow flowers ; Characias, 2 feet, long glaucous leaves and greenish flowers with dark centre ; Cyparissias, 12 inches, yellowish-green, on a dry, stony bank in full sun the pale green leaves of this kind change to a brilliant red, in which stage it is very effective. One of the best of all is Euphorbia epithymoides, of which the young leaves, floral bracts, and blossoms are of a golden tint ; it reaches a height of about I foot, and is at its best in spring, becoming greener as the season advances. A pretty little trailing plant is Euphorbia Myr- sinites, with small glaucous leaves and bright yellow flowers.- The leaf-like bracts, which surround the flower-heads and are of the same golden tint as the blossoms, render Euphorbia pilosa major very attractive during May and June ; it grows about 18 inches high. A more continuous flowering kind than most others is Euphorbia poly- chroma, with yellow flower-heads and bracts. The last to mention is the largest of all, namely. Euphorbia Wulfenii, that forms a sturdy bush 4 to 5 feet in height, with glaucous foliage and greenish-yellow flowers. Euphorbias are well suited for planting in dry, stony soils, as under such conditions the colouring of the leaves and floral bracts EURYA i8i is much brighter than in richer soil. They are readily increased by division. Eurya. — Evergreen shrubs, near relatives of the Camellia (Natural Order Ternstroemiaceae), which in general appearance they somewhat resemble. The hardiest is Eurya japonica, but even this is available only for planting in particularly favoured spots, such as the extreme south-west of England. The best known is japonica latifolia varie- gata, in which the young leaves are freely variegated with various shades of green and yellow, suffused with red. As the leaves mature the reddish tint disappears, but the different tones of yellow and green remain. This plant is occasionally used in summer bedding. it must be wintered in the greenhouse. Cuttings of the half-ripened shoots, put in a closed case in a slight warmth in July, can be tried, but they do not root at all readily. It is of neat growth, and requires no pruning beyond that necessary to keep the plants shapely. Evening Primrose. — {See Oenothera.) Everlasting Pea..— {See Lathyrus.) Exochorda.— Two kinds of Exochorda (member of the Rose family, Rosaceae) are known, one a native of Turkestan and the other of China. They are large-growing bushes allied to Spiraeas, their flowers are, however, considerably larger. The cultural require- ments are similar to those of the spring-flowering Spiraeas, for they thrive in loamy soil, may be increased by means of cuttings in summer, or by seeds, and require no regular pruning. What little pruning is done should take the form of thinning away weak inside shoots during summer. They must be given a sunny position, and are suitable for the shrubbery or for planting as isolated specimens. The flower- ing time is May. The species are : Alberti, from Turkestan, a bush 8 or lo feet high ; and grandifiora, from China, which grows from 12 to 15 feet in height. The flowers in both instances are white. Fablana imbricata. — An interesting and decorative plant belong- ing to the Potato family (Solanaceae) and a native of Peru and adjoin- ing countries, suitable for the open ground in the southern counties, for walls in the Midlands and west, and for the greenhouse elsewhere. Its growth is suggestive of that of the Heaths, for the tiny evergreen leaves are produced closely together on upright branches, which attain a height of 3 to 4 feet. The tubular white flowers, each i inch long, which appear from the leaf axils during late spring or early summer, are, however, quite distinct. It grows in ordinarily good garden soil, is increased from cuttings during spring and summer, and its branches should be shortened by several inches after flowering. i82 THE BOOK OF HARDY FLOWERS Fagus {Beech). — The most important species in this group (Natural Order Cupuliferae) is the Common Beech, Fagus sylvatica, a well- known forest tree in the British Isles and throughout a considerable part of Europe. There is, however, another hardy Beech, also a tree, native of North America, namely, Fagus ferruginea, the American Beech. Several kinds from South America and from New Zealand are sometimes included with Fagus ; they are, however, correctly named Nothofagus. Beech, though available for general cultivation throughout the British Isles, is peculiarly adapted for chalky land, and attains great luxuriance in the neighbourhood of the Chiltern Hills, a well-known chalky district. There the wood has become very popular for the manu- facture of chairs, toys, backs of brushes, and all kinds of small articles. It is a valuable tree for ornamental planting, and is also esteemed by the forester not only for the value of its timber, but because its heavy leafage enriches the ground upon which it grows. It can also endure a considerable amount of shade in its youth, and is useful for under- planting thin woods composed of large trees. There are many garden varieties, of which those with purple- or copper-coloured leaves are the most popular. Good ones are : atropurpurea norwegiensis, pur- purea major, and " Sweet Margaret," with purple leaves ; cuprea, with copper-coloured foliage ; macrophylla, and Prince George of Crete, with very large leaves ; and pendula, pendula borneyensis, and mil- tonensis, with weeping branches. Fagus ferruginea may be grown as a change. The species are raised from seeds sown as soon as ripe, and the varieties by grafting upon stocks of the type. Pruning should take the form of keeping the trees to a single trunk, and to the thinning of surplus and the removal of lower branches from young trees. This may be done in summer. The Common Beech is often used for hedges. Fairy Rings. — Disfiguring marks, circular in outline, are often found on lawns, golf greens, tennis courts, and bowling greens ; they are known familiarly as " fairy rings," and are due to the presence of fungi. Several kinds of fungus act in a similar manner, one of the commonest being Marasmius oreades. A ring may originate from a single spore. The mycelium or underground stage of the fungus always grows in a circular manner and in an outward direction, thus continually adding to the circumference of the circle. During summer or early autumn the fructification stage appears in the form of smedl toadstools, from which spores are distributed to other places. There are two methods of destroying the fungus. One is to dig the mycelium out, which can be done by removing the soil to a depth of about FATSIA 183 10 inches, taking care to remove 3 or 4 inches of the grass beyond the outer edge of the ring, and fiHing with good soil ; and the other method is thoroughly to soak the affected area with water contain- ing sulphate of iron at the rate of i pound of the chemical to i^ gallons of water. The mixture must be applied when the ground is wet, and sufficient should be given to soak the soil. False Daisy. — {See Bellium.) False Starwort. — {See Boltonia.) Fatsia {Aralia). — This genus is composed of shrubby plants (Nat- ural Order Araliaceae), which are closely related to the Aralia. The two hardiest kinds are : horrida, a spiny shrub from North- West America and North-East Asia ; and japonica, a native of Japan. The former is of little horticultural importance, but japonica is an excellent ever- green for the southern counties in almost any soil. It forms a large bush with comparatively few branches, each one terminated by a fine head of large, dark green, fan-shaped leaves. Very late in the year, often in October, immense inflorescences of cream-coloured flowers appear. Ivy-like fruits are sometimes matured, and the seeds form a good means of increase. Cuttings of the smaller shoots can also be rooted by inserting them in a warm and closed frame in spring or summer. There is a variety with pretty silver variegated leaves ; it is somewhat less hardy than the type. Both plants are sometimes grown in pots for room decoration under the wrong name of Castor Oil Plant. Fendlera rupicola. — This is a rare and pretty shrub (Natural Order Saxifragaceae) from the South- West United States. It is of slender twiggy growth, bearing small, greyish-green, ovate leaves, and white flowers in May, which are nearly i inch across. Except in the warmer counties, it is unsuitable for borders, and should be given a position against a south or west wall, using loamy soil in which a little peat or leaf -mould has been mixed. It is increased by cuttings in summer, and needs no other pruning save what is necessary in order to train it to a wall. A sunny position is essential to success. Ferula {Fennel). — ^Decorative herbaceous plants belonging to the Natural Order Umbelliferae, known under the common name of Giant Fennel, The various kinds thrive in any rich garden soil, such as suits other herbaceous plants, and should only be planted in places where they can have abundance of room, for it is only when the large finely- cut leaves are not crowded by other plants that their beauty is appre- ciated. They are found in South Europe, Persia, the Canary Islands, North Africa, and other countries, and upwards of a dozen species can be procured. A few of the best are : communis, from the Medi- i84 THE BOOK OF HARDY FLOWERS terranean region ; Ferulago, South Europe ; glauca, South Europe ; and Narthex, from the Orient. All have yellow flowers in large in- florescences. Asafoetida of commerce is obtained from Ferula Asafoetida. All may be increased by seeds or by division. Festuca. — This group of Grasses (Natural Order Gramineae) con- tains a number of useful perennial kinds usually included in mixtures of seed for permanent pastures and for lawns. The more important ones for this purpose are duriuscula, the Hard Fescue Grass ; elatior, Dover Grass ; elatior var. pratensis, Meadow Fescue Grass ; ovina, the Sheep's Fescue Grass ; ovina, var. tenuifolia ; and rubra, the Red Fescue Grass. They are common European Grasses (included in the British Flora) of neat growth, and constant mowing assists them to form a compact, velvety sward. They give good results on light soils, and when a particularly close surface is required a dressing of sea sand now and then is of great assistance. Festuca glauca is a pretty kind, with blue-green leaves. FIcus (Fig). — The importance of this genus (which belongs to the Natural Order Urticaceae) is considerable, although its value is more fully appreciated in the Tropics than elsewhere. The various species are very widely distributed through tropical Asia, Africa, Australia, etc., and they vary considerably in growth, some being weak, climbing, or prostrate shrubs, others small trees, and others, again, trees of considerable dimensions. In one instance the fruit is an important article of commerce in both fresh and dried conditions, whilst one kind, the Common Fig (Ficus carica), is grown in this country solely for its fruit in many gardens. Then, a valuable rubber is produced by some species, notably elastica, from India, and Vogelii, from Lagos. A rubber-like substance is, however, present throughout the genus, for if an incision is made in the stem of any kind, a white, milky exuda- tion will occur. This, if touched, will be found to be of a viscid nature. Another interesting tree is Ficus Sycamorus, sometimes called the Sycamore Fig of Egypt. The fruits are eaten by the Arabs, and the timber is of interest as being the so-called Sycamore Wood of Egypt, from which the ancient Egyptians often made coffins, etc. Ficus carica, the Common Fig, native of Afghanistan and Eastern Persia, is a familiar bush or small tree in this country. It is moder- ately hardy, and grows quite well as a bush in the open in many parts of the United Kingdom. Fruits are not ripened regularly', however, except against warm walls or under glass. The ornamental leaves warrant its being placed in a shrubbery, where it may be expected to grow quite well in ordinary garden soil, and to require no regular pruning. FITZROYA PATAGONICA 185 Ficus elastica is probably next in importance, for its large, leathery, evergreen leaves make it valuable for both greenhouse and room decoration. It is propagated by means of cuttings, buds, or by " ringing " the terminal shoots of plants which have become bare below. Fishbone Thistle. — {Sec Chamaepeuce.) Fitzroya patagonica is a handsome evergreen Conifer (Natural Order Coniferae). It is a native of the mountains of Western Pata- gonia, Chili, and Valdivia, and has only one known relative, that being Fitzroya Archeri, from Tasmania, Fitzroya patagonica forms a small tree of upright growth with elegant branchlets clothed with tiny dark- green leaves. It is at home in the gardens of the south-west counties, Ireland, and other places, where similar climatic conditions prevail, and is seen to the best advantage when grown as an isolated specimen in a sheltered position. Moist but well-drained soil is necessary, propagation is by seeds or cuttings, and pruning is unnecessary except to keep the plant shapely. Fleabane. — {See Erigeron.) Flowering Rush. — {See BuTOMUS.) Foam Flower. — {See Tiarella.) Forget-me-not. — {See Myosotis.) Forsythia {Golden Bell). — An important group of shrubs belonging to the Natural Order Oleaceae. All bear yellow flowers and blossom during April. There are three species, a hybrid, and several varieties. Two of the species are natives of China and the third of Albania. All thrive in ordinary garden soil, and are available for cultivation in most parts of the British Isles. Cuttings of soft shoots inserted in a little warmth root quickly during June. In addition to being of the greatest value for groups in the open or in the shrubbery, they may also be used for forcing, and good-sized plants are very pleasing when arranged with Ferns, Palms, or other foliage plants. Forsythia europaea is not so ornamental as the rest ; it forms an upright bush 4 feet or so high, and should only be selected when a full collection is desired. Forsythia suspensa is one of the twelve best early-flowering shrubs ; in its normal condition it forms upright main growths, with long, pendent, secondary branchlets, and it is from these that the flowers appear from almost every bud. When planted against a trellis, wall or other support it is very effective, whilst it looks well in a shrubbery. It may, however, be grown in quite a different manner. If planted in the open and cut back each year, strong, erect stems, 3 to 4 feet long, are formed instead of the slender pendent shoots of natural growth ; they bloom with remarkable i86 THE BOOK OF HARDY FLOWERS freedom. Plant in rich loamy soil, and cut back the secondary branches to within a bud or two of the main branches as soon as the flowers fade. Forsythia viridissima is an upright bush, 3 to 4 feet high and the same in width ; it is recognised by its deep green leaves and green bark ; the flowers appear a fortnight later than those of suspensa. Forsythia intermedia is a hybrid between the two last-named ; of very vigorous habit, it grows 8 or 10 feet high, and blooms freely. Specially good forms of this are spectabilis and densiflora. The varie- gated-leaved Forsythias are of little value. Fothergilla. — ^Two kinds of Fothergilla, which belong to the Witch Hazel family (Hamamelidaceae), are available for garden decoration ; Gardeni and major, both natives of the United States. Although allied to the Witch Hazels, they are of very different appear- ance, and the flowers are produced in dense heads during May. In both instances the flowers are white and rather showy, while the leaves colour well in autumn. Fothergilla major is the better and more vigorous shrub of the two ; growing 3 or 4 feet high, it forms a bushy plant, and bears its flower-heads with freedom. The leaves are golden in autumn. Although introduced within recent years, it has already taken kindly to our gardens, and thrives in light loamy soil in which a little peat has been dug. Cuttings may be rooted during summer, and pruning is unnecessary. Fothergilla Gardeni is often less than 2 feet high ; its branches are more slender than those of the other species. Foxglove. — {See Digitalis.) Fragaria {Strawberry). — This group, which belongs to the Rose family (Rosaceae), is interesting from the fact that it includes the Strawberry, Fragaria vesca. It is composed of low-growing herbaceous plants, which spread by means of runners, and are distributed through Europe, India, China, and North and South America ; they thrive in ordinary garden soil, and a few kinds may be planted in the rock garden. In each case propagation is effected by division of the clumps or by the removal of runners. As in the case of the Strawberry, it is advisable to remove any runners during summer that are not required for increasing the stock. Moreover, it is wise to commence again with young plants every few years. A few useful kinds are : chiloensis, a Chilian and Calif ornian plant, growing 6 to 9 inches high and bearing white flowers in May ; indica, a dwarf, white-flowered plant from India and China, suitable for the rockery ; and vesca flore pleno, a double-flowered form of the common Wild Strawberry. Other species are elatior, californica, and virginiana. FRANCOA 187 Francoa {Bridal Wreath). — The Francoas are very useful herbaceous plants, belonging to the Natural Order Saxifragaceae. They do not die down to the ground, and may only be considered to be really hardy in the south and south-west counties. Nevertheless, their beauty is such that in colder districts it is worth while storing them in cold frames during winter to plant out in May ; whilst one kind, Francoa ramosa, commonly called the Bridal Wreath plant, is often grown in pots for greenhouse decoration. Those planted out-of-doors should have well-drained, rather light soil ; whilst those grown in pots require a compost of 3 parts fibrous loam to | part each of leaf-mould, decayed manure, and sand. Propagation is by seeds or by cuttings. The three cultivated kinds are : appendiculata, growing, when in flower, 2 or 2 1 feet high and bearing purplish flowers ; ramosa, 2 to 2^ feet, with white, pink-flushed blooms ; and sonchifolia, similar in height, with light purplish blossoms. All are natives of Chili, and all bloom in summer except when grown under glass. Frankenia laevis {Sea Heath). — A low-growing shrub, native of Europe and other countries, belonging to the Natural Order Frankenia- ceae. As a rule, its branches are prostrate and clothed with tiny leaves in whorls after the manner of some of the Heaths. The flowers are rose- coloured and small. Its interest centres in the fact that it thrives in soil near the sea which is saturated with salt, hence it may be used to help to bind shifting sand. It is sometimes spoken of as the Sea Heath. Propagation is by seeds ; when once the plants are established, they ought not to be disturbed. Frankenias are sometimes planted in the rock garden, but are little better than curiosities. Fraxinus {Ash). — This is an important genus (Natural Order Oleaceae), for it includes several valuable timber trees. British Ash is considered to be one of the toughest of European woods, and is in great demand for the manufacture of agricultural implements, aeroplanes, etc. ; American Ash is used for similar purposes. Fraxinus thrives in any good soil, but gives the best results on deep, moist, moderately heavy loam, and the best timber is obtained from young trees. The vigorous kinds are more suitable for the woodland than for the garden. Planting may be carried out any time between early October and late March. All the species are increased by seeds sown as soon as ripe, in beds of light soil out-of-doors. Varieties are grafted upon stocks of their respective species in spring or are sometimes raised from layers. The only pruning required is that which is necessary to keep the leading shoots clear of rivals, and an occasional thinning of branches and removal of the lower ones; The Ashes are divided into two distinct groups, one of which 188 THE BOOK OF HARDY FLOWERS bears showy, and the other inconspicuous, blooms. The first set is represented in Europe by the Manna Ash (Fraxinus Ornus). This is a bushy-headed tree, 50 to 60 feet high, which produces large ter- minal panicles of white flowers in May or June. Manna of commerce is obtained in Southern Europe from a solidified exudation from the trunk and branches. Mariesii, from Central China, is another flower- ing kind of considerable merit ; it has creamy- white flowers followed by reddish fruits. Another of the same group is longicuspis, a Japanese tree, 20 to 30 feet high, which is rather uncommon in this country. All the flowering Ashes form good garden trees. Of the other Ashes, the best known is the Common Ash (Excelsior), a native of Europe. It is an important woodland and hedgerow tree, growing up to 145 feet high, with a trunk 3 to 4 feet in diameter. There are many varieties, of which pendula and pendula Wentworthii, with weeping branches, are very popular as lawn trees. Another variety, which is variously called heterophylla, monophylla and integrifoha, is distinct by reason of its single-lobed leaves, the Ashes generally having pinnate leaves ; var. aurea has golden stems and leaves ; foliis argen- teis has silver variegated leaves, but is not pretty, and globosa is of dwarf habit. There are many other varieties. Other useful species are americana (Wliite Ash), native of North America, a tree 120 feet high, with a trunk 5 to 6 feet in diameter ; angustifolia, 60 to 70 feet, long leaves with narrow leaflets. Southern Europe and North Africa ; dimorpha, 20 feet, leaves up to 3 inches long. North Africa (the var. dumosa is even dwarfer) ; oregona, 80 feet, Western North America ; parvifolia, small tree, narrow leaves. Southern Europe and Asia Minor. There are many more species. Fremontia californica. — This is a small tree or large shrub, native of California, belonging to the Natural Order Sterculiaceae, too tender for general out-door cultivation in the British Isles, but suitable for the milder counties, where it is often planted against walls, but sometimes in the open. Of rapid growth, it forms rather soft, pithy branches clothed with ornamental greyish leaves ; and from the buds on the previous year's shoots quantities of rich golden- yellow flowers, each 2 to 3 inches across, are produced in May and June. It is often seen from 10 to 12 feet high, but sometimes twice as much. Unfortunately, it is short-lived, and plants have an un- accountable habit of dying suddenly. Increase is by means of seeds. Plant in warm, loamy soil containing a little peat, and prune no more than is absolutely necessary to keep it within bounds. This should be done after the fall of the flowers. Fritillaria {Fritillary). — A considerable number of attractive D W < Z o H DC O O K DQ O Q U Q O Q O PC Pi FUCHSIA 189 bulbous plants are included in Fritillaria, which belongs to the Lily family (Liliaceae). They are widely distributed through Europe, Asia Minor, Algeria, Siberia, North America, and other countries, one kind being found wild in the British Isles. Many of them are available for outdoor planting here, some thriving in beds in the open ground, and others giving the best results when planted in a border at the foot of a wall. Well-drained loamy soil, light rather than heavy, suits them, and the bulbs should be planted 2 or 3 inches deep in October or November for flowering the following spring. It is not necessary to lift the bulbs each year, for they bloom satisfactorily for two or three years in one place. Propagation is usually by offsets from the old bulbs, but seeds, sown as soon as ripe, may also be used. Two of the best-known kinds are Imperialis, native of the Orient, and Melea- gris, a European kind, wild in the British Isles. The former, the Crown Imperial of gardens, is a vigorous plant, 2 or 2| feet high, bearing large, showy bell-like flowers in spring ; there are several forms with red, orange, and yellow blooms ; the bulbs must be planted 6 inches deep. Fritillaria Meleagris is often called the Snake's-head Fritillary ; it is a dainty little plant, 8 to 15 inches high, each stem bearing a solitary, fairly large, pendent blossom, which may be purple, yellowish, or white, with beautifully tesselated marks of darker colours. Both kinds thrive in the open, and may be used in the wild garden, where a moderate amount of shade exists. Other good kinds are : aurea, a hardy plant, 4 or 5 inches high, from Asia Minor, with yellowish flowers marked with brown; citrina, a yellow-flowered species from Asia Minor ; gibbosa, a dwarf plant, 4 or 5 inches high, with purplish blooms. Latifolia, a very variable kind from the Caucasus, grows 12 inches high, its flowers may be purple, almost black, yellow, or lilac ; there are many named varieties. Fritillaria pudica, from North America, grows 6 inches high, and bears yellow flowers. Fuchsia. — Showy shrubs, belonging to the Natural Order Onagra- ceae, chiefly natives of Chili and Peru, though some are also found in Mexico, Brazil, and New Zealand. They are so widely grown as greenhouse plants that their value for outdoor planting is often over- looked. The hardiest kind is macrostemma, from Chili ; this and a number of well-marked varieties are excellent plants for shrubberies, specimen plants, and hedges in the maritime counties, where examples 6 to 10 feet high are common. Elsewhere they are treated as her- baceous plants and cut to the ground line each spring, a crop of vigor- ous young shoots being produced afterwards which blossom finely throughout summer. They thrive in ordinary garden soil, are easily increased by cuttings dibbled into a shady border in summer ; when 190 THE BOOK OF HARDY FLOWERS grown as bushes the previous year's shoots are cut wellback in February, the majority of the very weak shoots being removed at the same time. Distinct varieties are : conica, corallina, discolor, globosa, gracilis, and gracilis variegata. All have red and purple flowers. Fuchsia Riccartoni is among the hardiest of all, as it is certainly one of the most beautiful ; sometimes classed as a variety of macrostemma, it is by other people considered to be a hybrid. Whatever its origin, it is a very attractive free-flowering bush, 8 or lo feet high, and as far through, while it is also available for informal hedges, giving excellent results even when exposed to the full force of strong sea breezes. Its flowers are red and purple. Tender Fuchsias, usually grown under glass, are excellent sub- jects for summer bedding, either as standards or as dwarf plants. If planted out in May they give first-rate results, flowering freely through- out summer. People who have a frost-proof shed or cellar can keep the plants quite well during winter. They are placed in pots in autumn and left out-of-doors until the leaves have fallen ; then being taken inside and kept dry until spring. In March put them in a light place and water sparingly until new roots are active ; then give manure water once or twice a week until planting-out time. Do not allow the young growths to overcrowd each other, but remove a number when 2 or 3 inches long ; these may be put in as cuttings if necessary. Any necessary cutting back of the old shoots is done in March. The single- flowered kinds are, as a rule, better than doubles for outdoor planting. Fumaria (Fumitory). — Many of the plants which were at one time included in this group of the Poppy family (Papaveraceae) should now be classed with Corydalis. Most of the Fumarias proper are annuals of a rather weedy character, and are known by the common name of Fumitory. Several kinds, such as capreolata, officinalis, densiflora, and parviflora, are common weeds in cultivated and waste land. Several of those which are now referred to as Corydalis have, however, considerable horticultural merit, and are worth a good and well-drained position in the rock garden in rather light soil. A few of the best are : bulbosa, a purple-flowered European plant, 6 inches high, with finely cut leaves ; lutea, the Yellow Fumitory of Europe ; cheilanthifolia, a Chinese plant, 6 inches high, with finely cut leaves and inflorescences of yellow flowers ; thalictrifolia, another Chinese plant, with pretty finely divided leaves and yellow flowers ; tomentosa, also from China, a yellow-flowered plant, 5 to 7 inches high ; and Wilsonii, a very attractive species from China, with yellow flowers and finely cut, glaucous leaves. Other useful kinds are : nobilis, racemosa, and tuberosa. FUNKIA 191 Fumitory. — {See Fumaria and Corydalis.) Funkia {Plantain Lily). — Hardy decorative border plants, be- longing to the Lily family (Liliaceae). The various species are natives of Japan, and are generally called Plantation or Plantain Lilies. The large oval leaves of several of the kinds are extremely ornamental, whilst those with variegated leaves are perhaps the most effective of variegated herbaceous plants. In addition, they produce showy inflorescences, whilst one, tardifiora, is one of our latest flowering border plants, its blossoms expanding during October and November. They are easily increased by division of the clumps in spring, and thrive in light but rich loamy soil. A moderate amount of moisture throughout the growing time is essential to success, and although they stand a fair amount of sun they give quite good results in semi- shade. Dwarf kinds, such as lancifolia and tardifiora, are useful for carpeting thin beds of shrubs or for use as edging plants. The leaves of the last-named grow 6 inches high, above which the inflorescences of mauve flowers rise another 6 inches. Funkia Fortunei is a vigorous plant with white or mauve flowers ; glauca is renowned for its showy blue-green leaves ; ovata has large, handsome leaves and tall flower stems 18 inches high, terminated by deep lilac flowers ; its varieties aurea and marginata have pretty variegated leaves, the former being especially attractive. Funkia Sieboldiana is another vigorous kind, with large leaves and creamy-lilac fragrant flowers ; subcordata, sometimes called grandiflora, is known as the Corfu Lily ; its large leaves and fragrant white flowers are equally attractive. The narrow- leaved Funkia lancifolia previously mentioned has several varieties. The variegated- leaved kinds are sometimes grown in pots for green- house decoration. Qaillardia {Blanket Flower). — Hardy annual and perennial plants are found in Gaillardia, which belongs to the Daisy family (Com- positae). The majority bloom very freely ; the flowers are showy, and in addition to being of great decorative use in the garden are useful for cutting. They thrive in ordinary, well-drained garden soil, and it is usual to sow seeds of the annual sorts in a greenhouse or frame in March, afterwards pricking out the seedlings in boxes 2 inches apart each way, or placing them singly in 3-inch pots to plant out in May. Seeds may also be sown out-of-doors in April. Seedlings should be left quite 9 inches apart, for the plants grow rapidly and require considerable space. The perennial kinds are increased by cuttings placed in a cold frame in August, and it is advisable to keep a few plants in a frame for the winter, for those out-of-doors are apt to suffer from damp and cold, and in heavy ground often 192 THE BOOK OF HARDY FLOWERS die after flowering. Seedsmen offer several varieties of the annual kinds which show variations of colour from red and yellow to red, yellow, or white. The flower-heads are often 3 inches across. The following species, all of North American origin, may be procured : amblyodon, annual, 2 to 2| feet high, flowers red ; aristata, perennial, 18 inches high, flowers yellow or red and yellow, many forms of this are obtainable, and it and its varieties or hybrids are better known than other kinds. The popular plant known as Gaillardia grandiflora, which has red and yellow blooms 4 inches across, belongs to this species. Gaillardia lanceolata is an annual with red and yellow flowers ; and pulchella, also an annual, is another very attractive plant with blooms of similar colour. Gail- lardia hybrida includes a large number of decorative garden kinds, e.g. alba, white ; aurea, golden ; coccinea, bright red ; and Josephus, red and yellow, are all good sorts. Qalanthus {Snowdrop). — The plants in this genus (Natural Order Amaryllidaceae) are more familiar under the common name of Snow- drop, and their flowers are perhaps more eagerly sought after than those of any other bulbous plant, for they begin to open early in the new year, and are the harbingers of other spring flowers. They are not very fastidious regarding soil, and may be planted in sun and shade, though they thrive best perhaps in good but light loamy soil in semi-shady positions. Snowdrops are excellent for planting in borders, shrubberies, woods, the wild garden, beneath trees, or as clumps in the rockery ; but they are less well adapted for planting amongst dense grass than Daffodils and Crocuses. In suitable positions they increase rapidly, and a few bulbs planted in August or September soon provide good-sized colonies. When grouping Snowdrops in the wilder parts of the garden care should be taken to spread them about so that no formal designs are noticeable. A good plan is to remove soil to a depth of from 4 to 6 inches, scatter the bulbs over the surface, rather close in some parts and thin in others, then replace the soil and insert a few small clusters outside the margins of the main group. Snowdrops are common in Asia Minor, and one or two kinds are found wild in Europe. Galanthus Elwcsii, from Asia Minor, and nivalis, a native of Europe, are the two commonest kinds. Both have several varieties ; of the former, ochrospeilus and unguiculatus may be obtained, whilst of the latter there are octobrensis, which blooms very early, Racheliae, and flore pleno, the last having double flowers. A few other species are : Alleni, byzantinus, caucasicus, Fosteri, latifolius, Olgae, and plicatus. Galax aphylla {Carpenter's Leaf). — A charming little evergreen GALEGA 193 plant from North America, suitable for planting in a moist position in peaty soil in the rock garden. It belongs to the Natural Order Diapensiaceae, and is a tufted plant 6 to 9 inches high, with many rounded leaves borne on very slender stalks appearing from a common rootstock. In winter the leaves become beautifully shaded with red and bronze. About June or July a further attraction is found in the delicately beautiful white flowers. Propagation is by division in autumn or spring. In the absence of peat a suitable soil may be provided by mixing leaf-mould and sandy loam in equal proportions. The common names of Wand Plant and Carpenter's Leaf are given to this plant. Galega {Goat's Rue). — Strong-growing and showy herbaceous plants belonging to the Pea family (Leguminosae). Two species are commonly met with — offi- cinalis, a native of Europe, etc., and orientalis, from the Caucasus. Both are peren- nials, and are commonly called Goat's Rue from the fact that goats fed upon the leaves and shoots are supposed to give an in- creased yield of milk. They thrive in any good garden soil, and usually grow about 3 feet high. Galega offi- cinalis has pinkish flowers and orientalis bluish blos- soms. Each one has a white - flowered variety. Propagation is by seeds and by division of the clumps in spring. Galium. — A group of plants belonging to the Bou- vardia family (Rubiaceae), of little horticultural value. Several are found wild in the British Isles, and their white or yellow flowers sometimes make walls and dry banks attractive. Others N THE CAPE HYACINTH (Galtonia candicans) 194 THE BOOK OF HARDY FLOWERS are, however, coarse weeds. The common name of Bedstraw is apphed to several, whilst Galium Aparine is known as the Goose Grass, and its fruits as Cleavers, from their habit of fastening them- selves to anything with which they come in contact. Some are of annual, others of perennial duration, but none is really worth atten- tion in the garden. Galtonia candicans {Cape Hyacinth).— This is the best-known species of this genus, which belongs to the Lily family (Lihaceae). It is a strong-growing bulbous plant, with leaves 2 to 2| feet long and flower spikes rising to a height of 3 or 3I feet, bearing numerous pendent white flowers resembling giant Snowdrops. The bulbs are usually planted in March, 6 or 7 inches below the surface, in rich and deep soil, and the flowers appear during July and August. They are some- times grown for several years in the same position without lifting, but they are liable to injury from cold in winter, and are best taken up in autumn and stored in a cool room until spring. It is a native of South Africa, and is sometimes called Hyacinthus candicans. Groups planted in the wilder parts of the garden or in the herbaceous border are very effective. Increase is by offsets taken off in autumn, or by seeds sown as soon as ripe. Garrya elliptica. — A handsome evergreen shrub belonging to the Dogwood family (Cornaceae). A native of California, it is not sufficiently hardy for general cultivation in the British Isles, though there are many places where it gives excellent results against east, south, or west walls, and in the southern counties it may be grown quite well in the open. It has two attractions, for it is a useful ever- green and a prett}^ and uncommon flowering shrub. Male and female flowers appear on different plants, those of the former being the more showy. They are borne from January to March in long, yellowish- green catkins, and the branches are useful for room decoration. Pro- pagation is by cuttings or layers. Plant in warni, loamy soil, and only give sufficient pruning to keep the plants shapely. Those planted against walls must not be hard pruned. There are other species, but they are inferior to the one described. Gaultheria. — Evergreen shrubs, belonging to the Heather family (Ericaceae), several of which are suitable for the outdoor garden. Gaultheria Shallon — the Shallon or Salal of Western North America — grows from 2 to 3 feet high and bears attractive foliage and racemes of pinkish-white flowers ; the flowering time is late spring, and the flowers are followed by dark purple or black fruits. It may be used as an undergrowth in thin woods in loamy or peaty soil, and when once established may be left undisturbed for many years. It can < 2 < 2 O < ti < GAURA 195 also be used effectively in the garden. Increase is by seeds or division ; it needs no pruning. Gaultheria procumbens is the Partridge Berry or Creeping Wintergreen of North America. Scarcely rising to a height of 6 inches above the ground, it makes a pretty carpet of foliage relieved by white flowers in spring and red berries later. It must have a rather shady place in cool, moist soil. Gaultheria nummu- larioides, from the Himalaya ; antipoda, from Tasmania and New Zea- land ; and pyrolaefolia, from the Himalaya, are all dwarf, rather tender shrubby plants, suitable for the rock garden in the warmer counties. All are increased by seeds or cuttings, and require no pruning. Gaura. — Annual or perennial herbaceous plants and sub-shrubs, members of the Evening Primrose family (Onagraceae). Gaura Lind- heimeri, a native of Texas, is a pretty perennial growing 3 or 4 feet in height, which bears pink and white flowers freely during July and August. Gaura angustifolia is another pretty kind with pink flowers in August, whilst parviflora is a yellow-flowered annual, growing 12 to 18 inches high. Plant in good loamy soil which is rather light and well drained. Lindheimeri is the only one commonly grown ; it is rather tender, and is usually raised each year from seeds sown in warmth in early spring. Gaylussacia is a group of shrubs allied to the Vacciniums, and belonging to the Natural Order Vacciniaceae. They require similar conditions to the Vacciniums and thrive in moist, peaty soil ; in fact, they may very well be used for planting on land which is inclined to be boggy. In some instances the leaves colour finely in autumn. All are natives of North America, and they are not grown much in this country. Propagation is by seeds and cuttings, and pruning is unnecessar}'. The species are brachycera, dumosa, frondosa, resinosa, and ursina. Gazania (Treasure Flower). — Showy plants belonging to the Daisy family (Compositae). The different kinds are only seen to advantage when planted in sunny positions, and they are well suited for grouping in the rock garden. Light soil suits better than heavy, and as they are not very hardy it is a good plan to root a few cuttings each year, and keep them in a cold frame during winter. One kind, Gazania splendens, is grown extensively for summer bedding ; it is of dwarf habit, with long, narrow leaves, and produces gorgeous, orange-coloured flowers 2 to 3 inches across. This is increased by cuttings in August, and again in spring ; it and other kinds are natives of South Africa. Gazania bracteata bears white and yellow flowers ; longiscapa, yellow ; lutea, yellow ; Pavonia, orange- scarlet ; and pygmaea, those of orange colour.- 196 THE BOOK OF HARDY FLOWERS Genista {Broom). — This group of shrubs, which are members of the Pea family (Leguminosae), is closely allied to Cytisus, and the various species require somewhat similar treatment. Pruning, how- ever, differs, for although it is wise to prune the taller growing kinds frequently whilst they are young to induce bushy growth, the pruning of older plants may be dispensed with. One species, however. Genista tinctoria, may be pruned every spring, for the flowers appear in July from the ends of the shoots formed during the current year. Some kinds can be increased by cuttings, but, as a rule, the best results are obtained by sowing seeds. The greenhouse plants usually grown as Genista racemosa and elegans are really Cytisus. The former is Cytisus fragrans, and the latter fragrans var. elegans. Both belong to the Canary Islands, and are excellent spring-flowering greenhouse plants, or in the southern counties they sometimes form large bushes out-of-doors. Genista aethnensis, the Mount Etna Broom, is a native of Sicily, etc., and is one of the greatest ornaments of the garden in July. Growing from 12 to 18 feet high, it has graceful, drooping, secondary branches which become streamers of golden blossoms ; anglica is a dwarf, spiny, yellow-flowered shrub, often found wild in this country ; cinerea, native of South-West Europe, forms a well-branched bush 8 or 10 feet high, and bears golden blossoms in June ; dalmatica is a dwarf kind from Southern Europe suitable for the rock garden, it grows but a few inches high, but is covered with golden blooms in May. Genista hispanica, the Spanish Gorse, is one of the most orna- mental of dwarf kinds ; when isolated, the plants form globular specimens of crowded spiny shoots which in May are covered by golden blossoms ; it may be grown in the rock garden or in the open. Genista pilosa is a dwarf, spreading plant 12 to 18 inches high, native of Europe, it is excellent for carpeting ground beneath taller growing plants, the freely-borne flowers are golden in colour ; sagit- talis grows from 6 to 9 inches high, forming a dense mat of green, winged shoots which in May are covered with golden flowers. Genista tinctoria differs from other kinds by flowering in July from the points of the young wood, it is sometimes called Dyer's Greenwood ; the var. elatior, 2| feet high, is an improvement on the type, whilst the dwarf fiore pleno should also be grown ; virgata, a native of Madeira, is a very useful large-growing Broom, even in poor, sandy soil in full sun or semi-shade it forms bushy plants 12 feet or more high, which in June are covered with golden flowers. Qentiana {Gentian). — The Gentians, which belong to the Natural Order Gentianaceae, are remarkable chiefly for the wonderful blue GENTIANA 197 colouring of their blossoms ; they vary very considerably in growth, some kinds being quite dwarf and suitable only for the rock garden, while others are noble plants for the flower garden. They are found wild in the European Alps, North and South America, the Himalaya, Japan, and other countries, while one kind, Gentiana verna, grows —though not abundantly— in the Highlands of Scotland and in Cum- berland. All the rock garden Gentians are somewhat tantalising plants : in some places they are grown successfully without the least difficulty, while in others they fail, not to grow, but to flower. The most popular of the dwarf kinds is Gentiana acaulis, native of the Swiss Alps, known popularly as the Gentianella ; it forms a tuft of rich green leaves, and in April and May bears large trumpet-shaped flowers, intense blue, with a greenish-yellow mark inside. In some gardens this Gentian is so easily grown that it is used as an edging in the flower garden ; in others, when the greatest pains are taken, it can scarcely be induced to bloom. It is most likely to succeed in deep, moist, loamy soil containing stones, and a sunny position ; very firm planting is essential, while copious supplies of water in spring and early summer are needed. It is said that protecting the plants in winter with a pane of glass (so arranged as to admit air freely) assists them to bloom. Gentiana bavarica, native of the European Alps, is a small plant with exquisite blue flowers in July ; it is difficult to grow, and should be planted in the moraine and supplied freely with moisture in spring and early summer, Gentiana Freyniana, from Asia Minor, and septemfida, from the Caucasus, are much alike, having showy blue flowers, the former in July and the latter in June ; they thrive best in a somewhat shady spot in the rock garden and in deep loamy and peaty soil. Gentiana decumbens, which blooms in July, and Kurroo, which flowers in September, are natives of the Himalaya, and should be given similar conditions to those advised for Gentiana septemfida. Gentiana Przewalskyii, from China, is another beautiful kind that is happy in partial shade in deep moist soil. The exquisite Vernal Gentian (Gentiana verna) is one of the chief favourites ; its bright blue flowers open in April. The conditions most likely to ensure success are a sunny position in the rock garden, and deep sandy loam ; it must be freely watered in spring and summer, for it is found wild in moist mountain pastures. The Willow-leaved Gentian (Gentiana asclepiadea), from South- East Europe, is a vigorous herbaceous plant, of which the flower stems reach a height of i8 inches, the showy blue flowers opening in July. Deep moist soil and a partially shaded position fulfil its 198 THE BOOK OF HARDY FLOWERS needs, such, for example, as arc often provided in the bog garden. Gentiana lutea, from the European Alps, is a striking plant, with large leaves and bearing tall spikes, 2 or 3 feet high, of yellow flowers in July ; it likes well-drained loamy soil. The most satisfactory method of raising Gentians is by means of seed, which ought to be sown as soon as it is ripe, in pots of light soil placed in a cold frame. Gentians cannot be grown successfully in shallow soil that dries up quickly ; a moist root run is essential to all of them, and partial shade is beneficial to most kinds. Geranium. — The various plants contained in this group (Natural Order Geraniaceae) are closely allied to Pelargonium, and some con- fusion has arisen between the two. The plants so commonly used for summer bedding, for instance, under the name of Zonal Gera- niums, and the so-called scented-leaved Geraniums, are not Geraniums at all, but Pelargoniums. The true Geraniums are herbaceous plants, suitable for the flower border or rock garden. Several are wild in this country ; one, Geranium pratense, being the Common Crowfoot of our meadows, a handsome plant with large blue or purplish flowers. Another one, phaeum, with dark purplish flowers | inch across, is known in some parts as the Mourning Widow ; whilst some forms of sanguineum are very beautiful, and suitable alike for border or rock garden. The flowers of this species are various shades of red or rose. There are many exotic kinds which are well worth attention for herbaceous border or rock garden. Geranium argenteum, for in- stance, a native of the Alps of Europe, is a charming little plant 3 or 4 inches high, with silvery leaves and rose-coloured flowers. Endressi, a more vigorous plant, from the Pyrenees, with rose-coloured flowers, is also attractive, as also are the blue-flowered Caucasian ibericum ; the purple-flowered macrorrhizum, an Eastern European plant of vigorous habit, suitable for naturalising in the wild garden ; pyrenaicum, with purple flowers ; and Wallichianum, with purple blossoms, plant in well-drained, light loamy soil and increase by means of seeds or by division. The very dwarf kinds with hairy leaves, such as Geranium argenteum, should be placed in a dry, sunny position where damp cannot remain long on the leaves. Gerbera {Transvaal Daisy). — The Gerberas, which belong to the Daisy family (Compositae), are distributed in South Africa, Siberia, and the Himalaya, but by far the most important one is the South African Gerbera Jamesoni, commonly called the Barberton or Trans- vaal Daisy. It is a very beautiful herbaceous flowering plant ; numer- ous leaves, 12 inches or so long, and not unlike those of the Dandelion in shape, are produced from a common rootstock, and well above them THE YELLOW GENTIAN (GENTIANA LUTEA) GEUM 199 the large Daisy-like heads of flowers appear during the greater part of summer and early autumn. The flowers vary somewhat in colour, but are generally a rich shade of red or scarlet, and the fully ex- panded heads are about 3 inches across. Unfortunately, this extremely handsome plant is rather tender, yet it gives excellent results in sunny borders in the neighbourhood of London. A border facing south at the foot of a warm greenhouse wall is an excellent place, the heat from the glasshouse being sufficient to provide a Httle protection and to prevent the border from becoming cold and wet in winter. Gerbera Anandeia, from Siberia, and Kunzeana and nivea, white- flowered kinds from the Himalaya, though less showy, are hardier. In addition to these, a set of very beautiful hybrids has been raised by using Jamesoni as one parent ; they have flowers as large as those of the Barberton Daisy, with a wide range of colour from white to pink and red and from yellow to orange. They thrive under similar conditions to Gerbera Jamesoni, and in places where they will not thrive out-of-doors they are well worth growing in pots in a sunny greenhouse or frame. Good loamy soil, containing leaf-mould and sand, forms a suitable rooting medium, whilst increase is by seeds or division of the clumps in spring. The inflorescences are excellent for table decoration, both by reason of their graceful poise and exquisite colouring. Geum (Avens). — A number of very attractive herbaceous plants and numerous weeds are included in Geum (Natural Order Rosaceae). The British plants known under the common name of Avens are Geums. Geum chiloense, a native of Chili, is one of the most useful kinds ; it forms a tufted plant with leaves 8 to 10 inches long from the axils of which showy bright red flowers are borne during the greater part of summer ; the var. grandiflorum plenum has double flowers, and the double red-flowered Mrs. Bradshaw, which may be raised true from seed, is another very fine variety. Geum coccineum. from Greece and Asia Minor, is a useful red-flowered kind, while montanum and its var. grandiflorum bear beautiful yellow flowers. Geum reptans is a dwarf plant 6 to 8 inches high, and both it and its double-flowered variety bear yellow blossoms. The Geums are easily grown in rich garden soil, and are increased by division and seeds. It is unwise to keep old plants, for young ones blossom more profusely. A sunny position is desirable. Giant Asphodel. — {See Eremurus.) Cilia. — Several very beautiful annuals are found in this group (Natural Order Polemoniaceae). They are natives of the New World, the majority being from California, but one or two are found wild 200 THE BOOK OF HARDY FLOWERS in otlicr parts of North America, and one in Chili and I'cru. They give the best results in rather hglit but rich loamy soil, and the seeds may either be sown thinly in boxes in I\Iarch or out-of-doors in April. Plants raised under glass must be pricked out in boxes i^ to 2 inches apart each way, and when they are planted towards the end of May, they may be put 4 to 6 inches apart. Seedlings raised out-of-doors must also be well thinned out, for no good object is gained by allowing annuals of any kind to stand close together. A few useful kinds are : achilleaefolia, 12 inches high with blue flowers (the variety alba has white flowers) ; androsacea, a variable plant 6 to 12 inches high, with lilac, pink, or white blossoms ; capitata, 9 inches high, flowers lavender; dianthoides, 6 inches high, with lilac blossoms; tricolor, a variable plant with varieties bearing blue, white, pink, or rose flowers, several colours or shades appear in the same flower. Gillenia. — Two herbaceous perennials are found in this genus (Natural Order Rosaceae) — Gillenia stipulacea, sometimes called American Ipecacuanha, and trifoliata, which is known as Indian Physic. Both are North American plants and are closely allied to Spiraea, the points of distinction being more apparent to the botanist than to the gardener. The roots have medicinal properties which are said to be very similar to those of Ipecacuanha, but the plants are grown here for ornamental gardening alone. They should be planted in the herbaceous border in well-manured soil, and may then be expected to grow about 3 feet high. They may have red or white flowers, according to the variety. Propagation is by division of the clumps in spring. Ginkgo biloba {Maidenhair Tree). — This Conifer (Natural Order Coniferae) is sometimes called Sahsburia adiantifolia, and is a native of China. It is of very ornamental appearance, and quite distinct from any other tree known. Belonging to one of the few groups of deciduous Conifers, it differs from many of the evergreen kinds by being suitable for town gardens. Of upright, though graceful habit, it forms a tree go or 100 feet high, numerous specimens in this country being upwards of 60 feet in height. Although it is not uncommon, it might be planted more frequently, for it makes a handsome lawn specimen, and is quite hardy. Its peculiar interest centres in its foliage, for the bright green leaves are large and flat, bearing a striking resemblance to a gigantic pinnule of the frond of a Maidenhair Fern, hence the popular name of Maidenhair Tree. The fruits, which are rarely produced in this country, are golden and plum-like when ripe, the central seed being surrounded by pulp. Male and female flowers arc on different trees. It might be used with advantage for avenues. GLADIOLUS 201 its habit of growth being pecuHarly appropriate for the purpose. Plant in ordinary garden soil, and prune in summer to keep the trees shapely. Increase is by imported seeds. Gladiolus is a very important group of flowering plants, for it includes not only a wide selection of decorative kinds, but also several distinct races of hybrids, each of which contains many showy sorts. Gladiolus belongs to the Iris family (Irideae), and most of the kinds are natives of South Africa, a few being found in Southern Europe, Asia Minor, etc. All are herbaceous in character, and the rootstock consists of a corm somewhat similar to that of the Crocus, though, of course, much larger, each corm being capable of producing a vigor- ous central shoot, and if that should be injured, several weaker shoots from donnant buds. This peculiarity has been taken advantage of by florists, and to produce extra plants of choice varieties the corms are divided up into sections, each one containing a dormant bud. These, if placed in sand, soon emit roots and shoots, and are then planted in soil in the ordinary way. Another convenient method of increasing new varieties is available in addition to that of dividing a vigorous root, for many tiny bulbils are formed about the base of each. By carefully collecting these and planting them in a bed of light, sandy soil containing leaf-mould, quantities of plants are soon produced. It is a good plan to make up a bed in a cold frame for this purpose. Species and new varieties are raised from seed. The seed should be sown in boxes or pans of sandy soil as soon as ripe, preferably in a light and warm frame or greenhouse. As soon as the young leaves are 2 or 3 inches high, the plants are pricked out from I to 2 inches apart each way in a bed of well-drained soil. Here they are allowed to remain for two or three years, according to their vigour, and are then taken up and sorted. A cold frame should be provided for the purpose. As the majority of the Gladioli are rather tender in most districts, it is inadvisable to leave them in the ground throughout winter. Rather lift them before the tops have fully withered in autumn, dry the roots, remove the dead tops, clear away any dirt, and store them in a cool but frost-proof room or shed until the following spring. The best time to plant is late March or early April. Any rich garden soil is suitable, the stronger growing kinds thriving in moderately heavy soil, whilst the weaker ones prefer soil of a lighter nature which is well drained. A light, open position is essential, and they may often be used with satisfactory results as clumps in thin shrubberies or to furnish beds which contain early flowering herbaceous plants. They are also effective in the herbaceous border. The corms are 202 THE BOOK OF HARDY FLOWERS usually placed from 9 to 12 inches apart, and are covered with about 3 inches of soil. In heavy ground it is wise to place a little coarse sand under each root. In land that has been manured the plants grow vigorously, but in poor soil two or three applications of liquid manure during the growing season are beneficial. Wlien inflorescences are to be exhibited this feeding process should begin as soon as the roots are really active. Where summer drought is experienced a mulch of well-decayed manure and leaves may be applied in May with advantage. The hardier species are : atroviolaceus, a purplish- flowered plant from Syria, etc. ; byzantinus, native of the Mediterranean region, 2 feet high, bears reddish-purple flowers, and may be naturalised in the warmer counties, it is sometimes called the Turkish Corn Flag ; segetum, the common Corn Flag of the Mediterranean region, has purplish flowers. All these may be left in the ground throughout winter. Other groups are as follows : Gladiolus Colvillei. — This grows about 2 feet high and bears crim- son-purple flowers on graceful inflorescences. It is typical of a small- flowered group which blossoms early (May and June), and is invalu- able for cutting ; large quantities of flowers are grown for market purposes, and many corms are planted in pots for greenhouse decora- tion. Rosens, with salmon-rose flowers with deeper-coloured stripes, and The Bride, with white flowers, are effective varieties of this group. These are fairly hardy and may be planted in autumn. Gladiolus cardinalis is a South African kind with branched in- florescences of large bright scarlet flowers, with a few blotches of white on the lower segments. Its varieties bloom during July. A few good sorts are : Blushing Bride, ivory-white with crimson marks ; Crimson Queen, scarlet-crimson with carmine and white marks ; Fairy Queen, salmon-rose with white blotches and crimson margin ; Favourite, salmon-rose with cream-coloured blotches and crimson margin ; General Scott, white, shaded rose ; Peach Blossom, rosy- blush blotched rose and cream ; Rose Queen, soft rose, blotched with blood-red, eye cream. Gladiolus hrenchleyensis. — This, like Gladiolus gandavensis, is a garden hybrid raised by crossing psittacinus and cardinalis. Both have large, rich, scarlet flowers in long, dense spikes. They are much alike, but hrenchleyensis is said to bloom before the other. Of gandavensis there are numerous forms with red, scarlet, crimson, and rose colouring ; also others with white and yellow grounds with markings of other colours. They may be procured cheaply as un- THE CREEPING GYPSOPHILA REPENS ROSEA GOAT'S RUE (GALEGA HARTLANDI) fmmmmmmmmmmmmmiimimmmm mm m ■N tmm mmmm P'*'*'l?flfl mm Ki wfigmmmmmmt'immi^f''i»MKi sum ■■ ■ W l * WUli I i KL» i m Wil— w GROUNDS A HANDSOME TORCH LILY (KNIPHOFIA CAULESCENS) GLAUCIUM 203 named varieties. One, called Mikado, brought to notice within the last few years, produces very fine spikes of flowers in which blush- rose, cream, crimson, and primrose are blended. Gladiolus Lemoinei is the type of a group of hybrids raised by crossing gandavensis with purpureo-auratus. The flowers are rather small, slightly hooded, and bear conspicuous blotches upon yellow, purple, or white ground. A few good ones are : Docteur Kegel, Fust ell de Coulanger, Hippolyta, Lafayette, J. J. Weiss, Vesuve. It is advisable, however, to purchase unnamed varieties ; they are quite as beautiful and much cheaper. Gladiolus nanceianus, like the last-named, is a hybrid raised by the late M. Lemoine, of Nancy. Its parents were Lemoinei and Saundersii, The flowers are large and richly coloured. Very good selections of unnamed kinds can be procured. Gladiolus Childsii is the type of another group of hybrids raised by crossing gandavensis varieties with Saundersii. They are vigorous and free-flowering, with very large bright-coloured flowers. Named varieties are offered in bulb lists. Gladiolus primulinus is a com- paratively new kind from the Zambesi, with primrose-yellow blooms. A showy hybrid between Childsii and gandavensis is found in the new Gladiolus America. The flowers are very large and flesh-pink, tinged with lavender. Many of the stronger growing kinds of Gladioli grow between 3 and 4 feet high, and need to be carefully staked. Glastonbury Thorn. — {See Crataegus.) Glaucium {Homed Poppy). — This group of Poppies (Natural Order Papaveraceae) consists of annual, biennial, and perennial border plants which have showy flowers. They are popularly termed Horned Poppies, and are found wild in Europe and Asia Minor. Seeds of annuals and perennials should be sown in the positions where the plants are to flower, the former being sown in March, to flower the same year, and the others in July, to bloom the foHowing year. The seeds are sown thinly in ordinary garden soil, and the seedlings thinned so that they are 6 or 7 inches apart each way. Two of the commonest species are corniculatum with orange-red flowers, and its variety rubrum with red flowers ; and flavum, a yellow- flowered plant which has several varieties, notably fulvum and tricolor. Some of the species included at one time in this family may now be found under Chelidonium. The Horned Poppies may be used with effect as under- growth for thin shrubberies. Glaux maritima {Sea Milkwort). — A dwarf-growing perennial, native of Europe, including the British Isles. It belongs to the Primula family (Primulaceae), and is known as the Sea Milkwort. 204 THE BOOK OF HARDY FLOWERS It grows from 6 to lo inches in licight, and is found tlirougliout the country in the vicinity of the sea, and is pretty when its pink fiowers are open. It is hardly, however, a plant to recommend for gardens. Gleditschia {Locust Tree). — Trees belonging to the Pea family (Leguminosae), and natives of North America, China, and Japan. The majority have spiny branches and trunks, the spines in some cases being 6 to 9 inches long and many times branched. Even from old trunks of some kinds spines are continually appearing, and they grow to their full size in one season. The trees are ornamental by reason of their handsome leaves being divided into a large number of tiny, bright green leaflets. The July flowers are not showy, but they are succeeded by long, flat pods, sometimes i foot in length, which are brown when ripe. They thrive in the Midlands and southern counties in ordinary garden soil, are increased by seeds, and when young should be pruned regularly in summer in order to reduce ex- cessive side growth and encourage the lengthening of the main axis. Gleditschia triacanthos is the commonest and the hardiest, it forms a moderate sized tree, and is a native of the Eastern United States ; aquatica and texana are other useful American species; whilst Delavaj'i, macracantha, and sinensis from China, and japonica from Japan, may also be grown. Globe Flower.— (5^5 Trollius.) Globe Thistle. — (See Echinops.) Globularia (Globe Daisy). — Herbaceous perennials or dwarf shrubs (Natural Order Selaginaceae). They are known as Globe Daisies, and Globularia vulgaris is sometimes called the Blue Daisy.- Several are natives of Europe, and are available for the herbaceous border or rockery. Their flowers are in small, rounded heads and open in June and July. Plant in sheltered and moist positions in light loamy soil, and increase the herbaceous kinds by seeds in spring, or by division in early autumn. Globularia cordifolia is a dwarf plant with blue flowers ; nana, trichosantha and vulgaris also have blue flowers. Gnaphallum.— There are several species of Gnaphalium (which belongs to the Daisy family, Compositae), chiefly low-growing plants with grey foliage, the flowers being surrounded by dry bracts which last in good condition for a long period and are sometimes called Everlasting Flowers. They grow in ordinary soil, and may be used in the herbaceous border or rock garden. A few kinds are : indicum, luteo-album, and uliginosum. All are widely distributed. None is of much decorative value. Goat's Rue.— {See Galega.) GODETIA 205 Godetia. — The Godetias belong to the Evening Primrose family (Onagraceae), and are closely allied to and sometimes included in Oenothera (the Evening Primrose). They are among the most beau- tiful of hardy annuals, they require rich soil, and the seeds may either be sown in the position the plants are to occupy, or in boxes under glass in March or early April, the seedlings being pricked out in boxes for permanent planting towards the end of May. Seeds may be sown out-of-doors between the middle of March and the end of April. In either case the plants must not be allowed to stand closer than 9 inches, for they grow li to 2 feet high and branch freely. Godetia rubicunda, from California, sometimes called Oenothera amoena, is the most important kind ; there are several varieties, the following being particularly attractive : Lady Albemarle, crimson, dwarf ; Bijou, red and white ; Bridesmaid, rose and white ; Duchess of Albany, white ; General Gordon, crimson ; gloriosa, red ; La Belle, rose ; Lady Satin Rose, rose ; Perle, carmine ; Rosamunde, rose ; The Bride, white with carmine marks ; Princess of Wales, ruby and crimson. Golden Feather.— {See Pyrethrum.) Goodyera. — A group of hardy and tender Orchids (Natural Order Orchidaceae). Several hardy kinds are grown in this country, and one is a native. The British plant is Goodyera repens, found in light, loose soil amongst the fallen needles of the Scots Pine, in Scot- land. When in flower in summer it may be anything between 4 and 7 inches high, the fragrant flowers being creamy white. It is a rather difficult plant to establish, and the best way to form a plantation is to convey deep turves containing healthy plants from one Pine wood to another. Two North American sorts, pubescens, the Adder's Violet, and Menziesii, the Rattlesnake Plantain, may be grown in a moist position in peaty soil in the rock garden. Several of the tropical kinds are noted for their beautifully marked leaves. Gordonia is closely allied to Stuartia and Camellia, and belongs to the Natural Order Ternstroemiaceae. Two kinds, Lasianthus and pubescens, both from the Southern United States, have been intro- duced to this country, but they are only suitable for out-of-doors in the mildest parts, and there appreciate the protection of a wall. Both are evergreen bushes bearing showy white flowers in July and August, which have a somewhat similar appearance to those of a single Camellia. They may be grown in the same way as the latter, and are usually increased from imported seeds. No regular pruning is necessary. When grown as greenhouse plants they give the best results in a border in a light, airy structure. 206 THE BOOK OF HARDY FLOWERS Qorse. — {See Ulex.) Gourd. — (See CucuRBiTA.) Grape Hyacinth. — (See Muscari.) Grevillea. — This is an interesting and decorative group of semi- tender evergreen shrubs belonging to the Natural Order Proteaceae. They are natives of Australia, and about the middle of last century were amongst the most popular of greenhouse plants. Modern heat- ing arrangements and the introduction of numerous quick-growing plants for greenhouse decoration have almost supplanted them and others which were known collectively to our grandparents as New Holland plants. A few kinds are, however, still grown under glass, while two or three are distinctly popular outdoor shrubs in the warmer parts of the country. Grevillea robusta, a handsome decora- tive foliage plant, is the commonest greenhouse kind, and may also be used out-of-doors for sub-tropical bedding in summer. It is easily raised from seeds sown in warmth in spring. The two best for out- of-doors are the yellow-flowered Grevillea juniperina and the red- flowered rosmarinifolia. Both form wide-spreading bushes 4 to 5 feet high in ordinarily good garden soil, and require no regular pruning. They are rarely without flowers. Griselinia.— This group contains two useful evergreen bushes suitable for the warmer parts of the country, which are members of the Dogwood family (Cornaceae). They are Griselinia littoralis and lucida, both natives of New Zealand. The former is the hardier kind, and is one of the most conspicuous evergreens of Cornish gardens ; it is usually found as a shapely bush between 12 and 40 feet high with a considerable diameter, the branches being retained from base to summit with little or no attention to training. The rounded glossy green leaves are about 3 inches long. Ordinary garden soil suits it, and it may be increased by layers, cuttings, or seeds. Numer- ous seedlings may often be found beneath the old plants. If growing too luxuriantly, the branches may be pruned back during summer. Griselinia lucida is recognised by its rather stiffer habit and larger and thicker oval leaves, which are sometimes between 5 and 6 inches long. It should only be planted in sheltered places. Gunnera manicata is the most conspicuous plant in this genus (Natural Order Haloraginaceae). Although a native of Brazil, it is hardy in many parts of the British Isles, but should have a little protection in spring just when the new leaves are appearing. In general appearance the plant resembles a gigantic Rhubarb, and in Cornwall and Ireland, where it attains its greatest luxuriance, the leaf-stalks are sometimes from 7 to g feet long, and the blades of A HARDY ORCHID (HABENARIA THE STRIKING HERACLEUM GIGANTEUM DAY LILY (HEMEROCALLIS FULVAJ PINK ANNUAL HAWKWEED (HIERACIUM) GYMNOCLADUS 207 the leaves from 9 to ii feet across. In other locahties, the leaves are often 6 or 7 feet across. It thrives in rich loamy soil to which cow manure has been added, and should be given a generous top- dressing of cow manure each spring. The proper position for it is in moist soil on the banks of a lake or stream, for preference, where the roots can enter the water and the crown stand clear. Propaga- tion is by division of the crowns in spring. Sections containing small dormant buds and a few roots grow readily, but they take several years to attain their finest proportions. Large cone-like inflorescences appear during spring and early summer. They, however, must be removed at once, or they will weaken the plant. Other species are : bracteata, chilensis, magellanica, and perpensa. In the case of hard frost being experienced in winter, it is wise to cover the crowns of Gunnera manicata with leaves and spruce branches. Gymnocladus.— There are two kinds of Gymnocladus : cana- densis, the Kentucky Coffee Tree of North America, and chinensis, from China ; they belong to the Pea family (Leguminosae). The former is the hardier and commoner tree, the other only being avail- able for the milder counties. Gymnocladus canadensis grows from 40 to 80 feet high, and is remarkable for the white or greyish bark of the younger shoots and for its handsome doubly pinnate leaves. On young specimens the leaves are sometimes 3 feet long. One of the finest examples in the country is growing at Claremont, in Surrey. The seeds have sometimes been used in Canada as a substitute for coffee, whilst those of the Chinese kind have soapy qualities. Warm, well-drained loamy soil is suitable, increase is by seeds, and pruning is confined to regulating the branches of young trees so that they do not interfere with the leading shoots. Such pruning may be carried out during summer. Gynerium. — {See Cortaderia.) Gypsophila {Chalk Plant). — This is a rather large group of plants belonging to the Pink family (Caryophyllaceae), but one kind far exceeds all others in value. That is Gypsophila paniculata, a native of Europe, etc. It is widely grown for decorative gardening, the peculiarly graceful inflorescences of tiny white flowers being very popular in the flower border or for adding lightness and grace to floral decorations composed chiefly of more highly-coloured and heavier flowers. It is of perennial duration, and may be increased either by seeds or division. Any good garden soil appears to suit it, and at maturity it is from 2 to 2| feet high with a head of considerable width. Deep soil must, however, be provided, and lime or chalk is an advan- tage. Once estabhshed, a clump will continue to provide a harvest 2o8 THE BOOK OF HARDY FLOWERS of flowers for many years. As the roots are long and woody, it is not advisable to transplant them oftener than is absolutely necessary. In addition to the type there is a double-flowered form. A few other useful kinds are : Arrostii, libanotica, perfoliata, and repens. The last-named is a charming low-growing plant for the rockery in well- drained sandy loam. Gypsophila elegans is a pretty little annual with wliite flowers. Habenaria. — Many members of this group of Orchids (Natural Order Orchidaceae), that is to say, those which are natives of the temperate regions of the Northern Hemisphere, are quite hardy in this country. They need a moist, peaty soil, and should be planted in a partially shaded spot. The chief hardy kinds are : bifolia (Butter- fl3^ Orchis), native of Britain, which from the centre of two wide- spreading leaves sends up a stem 12 inches high, bearing several white, sweet-scented flowers ; blephariglottis, a North American kind, has white flowers with beautifully fringed lip ; another from the same region is ciliaris, with pretty fringed yellow flowers ; conopsea has whitish blossoms ; the lilac-purple fringed flowers of fimbriata are very pretty, so, too, are the rich purple blooms of psycodes. An exceedingly curious plant is the British Frog Orchis (Habenaria viridis), with quaint green flowers ; it thrives under drier conditions than the others. All the Habenarias grow from 12 to 18 inches high, and flower in summer, chiefly in June ; they are increased by dividing the roots in late summer. Haberlea rhodopensls. — A pretty little alpine plant, belonging to the Gloxinia family (Gcsneraceae), from the mountains of Greece. It forms a rosette of leaves, and bears in June or July pale lilac-coloured flowers on a spike about 6 inches high. It should be planted in a damp, shady crevice on the rockwork, in sandy peat, and can be increased by seeds sown in the spring in a shady frame. Habranthus pratensis. — (See Hippeastrum pratense.) Hacquetia Epipactis. — This, the only member of the genus (which belongs to the Natural Order Umbelliferae), is a pretty little alpine perennial that reaches a height of about 4 inches. The leaves are composed of three leaflets, and the small yellow flowers, in tiny umbels, appear in spring. It should be planted in the rockery in light loamy soil, and resents being disturbed ; it may be increased by division, which must be very carefully carried out in early spring. Though a native of several parts of Europe, it is very seldom met with. Hair Grass.— (S^^^J AiRA.) Halesia (Snowdrop Tree). — The best-known member of this group (Natural Order Styraceae) is Halesia tetraptera, the Silver Bell or HALIMODENDRON ARGENTEUM 209 Snowdrop Tree of gardens. Several other kinds have, however, been known for many years under this name, but all are not strictly Halesias. Those from North America are now called Halesia, and those from China and Japan Pterostyrax. Their nearest ally in the outdoor garden is Styrax. The Silver Bell or Snowdrop Tree forms a bushy specimen, usually between 15 and 25 feet high, although it grows three or four times as high in the United States. It is popular by reason of its profusion of white bell-like flowers, which appear in June. Halesia parvifiora, from Georgia and Florida, is quite as beautiful, while it has the advantage of flowering freely as a bush 4 to 6 feet high. Other true Halesias are : tetraptera Mechani, with larger flowers than the type, and diptera, a showy kind from the Southern United States. The Halesias like rich loamy soil, in which a little leaf-mould or peat has been dug. They should be given posi- tions sheltered from cold winds, are increased by seeds or layers, and only require sufficient pruning to keep them shapely, that being carried out after the flowers have fallen. Halimodendron argenteum, the Salt Tree of Siberia, belongs to the Pea family (Leguminosae). It is of shrubby growth, with many long, thin branches clothed with small greyish leaves, and bears a profusion of pinkish flowers in May. In addition to being a showy bush, it is well adapted for planting in ground impregnated with salt. In its native habitat it is common on the salty plains. As a rule, it is grafted standard high in this country upon stocks of the Siberian Caragana arborescens, though it may also be grown on its own roots from seeds. As a bush it is useful for planting amongst rocks over which its branches may ramble at will, and for this pur- pose it might well find greater use in the vicinity of the sea. When grafted, it may be grown in any ordinary garden soil. Pruning is unnecessary. Hamamelis {Witch Hazel). — A very showy and popular group of hardy shrubs or small trees, natives of China, Japan and North America (Natural Order Hamamelidaceae). The majority blossom during December, January, or February, according to season, although they arc usually at their best during the two latter months. One species, virginica, however, blooms during October and November. Although better adapted to the conditions prevailing in southern than in northern gardens, these shrubs are sufficiently hardy to sur- vive and give good results in most parts of the British Isles. The popular name of Witch Hazel is applied to the various kinds, although there is really no connection between them and the Hazels. With one exception, the flowers are peculiar by reason of their narrow, o 210 THE BOOK OF HARDY FLOWERS twisted, strange-looking petals ; they are produced from buds on all parts of the younger growths, and are in such profusion as almost to hide the leafless branches. Plant in well-drained loamy soil con- taining a little peat, and provide sheltered positions exposed to full sun. Most of the kinds may be increased by seeds, or the better ones may be grafted upon stocks of the common Hamamelis virginica. The only pruning required is a little now and then to shape the plants. This must be done directly the flowers fall. A selection of species is as follows : arborea, a Japanese bush or small tree with rich golden blossoms, usually borne during January and February, the calyx lobes are red ; japonica, a bushier kind with golden petals and green calyx lobes — the var. Zuccariniana has lemon-coloured flowers. Mollis is a vigorous Chinese bush or small tree, with large oval leaves and handsome, golden, Primrose-scented flowers, which have straight petals with hooked ends : it blooms during December and January, and is the best of all. Virginica is a North American kind, which blooms in late autumn before the fall of the leaves ; vernalis, also from America, blossoms in spring. The leaves of most kinds change to a pretty golden hue before they fall. Hare Bell. — {See CAMPANULA ROTUNDIFOLIA.) Hare Bell, Australian. — (See Wahlenbergia.) Harpallum.^ — {See Helianthus.) Hart's Tongue Fern. — {See Scolopendrium.) Hawkweed. — {See Hieracium.) Hawthorn.— (Se^ Crataegus.) Heartsease.— (5^e Viola tricolor.) Heath. — {See Erica.) Hedera {Ivy). — A popular class of shrubs (Natural Order Arali- aceae), usually of traihng habit. The most important kind is Hedera Plelix, the Common Ivy of Europe, North Africa, and North Asia, a plant found wild in many parts of the British Isles. There are, however, one or two others in cultivation, though they are some- times included as varieties of Hedera Helix. The chief are himalaica and coriacea (or colchica, as it is sometimes called) ; the last-named is the parent of many of those kinds which have very large, thick leaves. The chief attraction of the Ivy is its evergreen foliage, though the yellowish flowers in autumn and dark fruits in winter are also showy. A peculiarity of the Ivy is its change of habit under certain conditions. As is well known, it ascends walls and trees by attach- ing its branches to the surface by means of aerial roots, but when the top of the support is reached the trailing habit disappears, and bush form is assumed. It is in this state that it flowers and fruits, THE OLD DOUBLE WHITE ROCKET HEDYCHIUM 211 neither being found on the trailing branches. By propagating from these bushy parts excellent little evergreens have been obtained. As is well known, the Ivy is a very variable plant, and not only do the leaves differ widely in shape, but also in colouring. Many have been given varietal names, and kinds with green, and gold and silver variegated leaves may be procured. Fortunately, the various kinds of Ivy may be grown in both town and country gardens, and they are available for a variety of purposes. Nothing is better for covering bare walls in bad positions, whether facing north, south, east, or west. They are equally useful for clothing the ground be- neath shady trees, where grass will not grow, for planting against pillars, over old tree roots, against dead trees, or as informal fences trained on pillars and chains, etc. ; whilst the bush forms may be used about the garden as ordinary evergreens. All kinds of soil come ahke to the common kinds, but the less vigorous varieties should be given good loam. Propagation of the trailing sorts is by cuttings, indoors or in an open border. The bush forms may be either rooted from cuttings or be grafted upon rooted cuttings of the strong, trail- ing Irish Ivy. Ivy grown against house walls should be cut well back early in April each year ; that growing against ruins must be left unpruned. When pruning I\^ on walls it should be cut back each year well below the gutters, otherwise it is liable to get between the slates and injure the roofs. Bush Ivies simply require to have the flowering shoots shortened in spring. The chief sorts are : Helix, of which the varieties algeriensis, angu- laris, azorica, canariensis (Irish Ivj^), and maderensis have large green leaves ; Caenwoodiana, conglomerata, crenata, deltoidea, digitata, gracilis, minima, minor, and triloba, small green leaves ; nigra and purpurea, purplish leaves ; Angularis aurea, aurantiaca, aurea elegan- tissima, chrysocarpa, and chrysomela, golden leaves, and Crippsii maculata, maderensis variegata and variegata, have silver variegated leaves. The bush forms are found under the name of arborescens ; gold, silver, and green kinds of these can be obtained. Of varieties of other species the following have very large leaves : coriacea, amurensis, dentata, and gigantea. Hedera himalaica is a handsome kind also. Hedychium. — The Hedychiums, which belong to the Natural Order Scitamineae, are natives chiefly of tropical Asia, and, with one exception, unfit for growing out-of-doors. This is Hedychium Gard- nerianum, which passes the winter in a dormant state, and sends up a leafy spike about 4 feet high, terminated by a dense raceme of pale yellow, highly fragrant blossoms in the summer. This plant 212 THE BOOK OF HARDY FLOWERS is a near relative of the Canna, and needs a warm spot, such as a narrow border in front of a greenhouse facing south. If the crowns are pro- tected by a few leaves in winter they will be safe. Hedychium may be wintered safe from frost, hke the Canna, and planted out in the garden during summer in a warm, sunny spot. Hedysarum. — Chiefly herbaceous perennials, belonging to the Pea family (Leguminosae), natives of the temperate regions of the Northern Hemisphere. One, Hedysarum multijugum, is a valuable summer-flowering shrub. The more vigorous kinds will thrive in deep, loamy soil, while the smaller ones are suitable for the rockery. Hedysarum coronarium (French Honeysuckle) is most commonly seen ; it grows 3 feet high, and bears racemes of deep red flowers during summer. Other species are : neglectum, a dwarf plant with purple-crimson flowers, suitable for the rockery ; obscurum, another low growing rock garden plant, with rosy-crimson blossoms, and sibiricum, purple flowered, 2 feet high, suitable for the herbaceous border. The shrubby kind, multijugum, forms a spreading bush about 4 feet in height, with slender zigzag branches clothed with hoary pinnate leaves, and bears, during July, long racemes of purple Pea-shaped blossoms ; it flowers best in a warm, well-drained loamy soil. Cut the younger shoots back about half-way in February, and at the same time peg down a number of the branches to within a few inches of the ground. Hedysarums are increased by seeds or by division of the roots in early spring. Helen! um {Sneeze Wort). — Hardy perennials, members of the Daisy family (Compositae), and natives of North America. They are valuable for the herbaceous border, where they yield a fine show of bloom late in summer and early autumn. They thrive in ordinary garden soil, and should be divided every two or three years in early spring. The best kinds are : autumnale, pale yellow ; autumnale striatum, coppery-crimson striped with orange ; Riverton Beauty, with lemon-coloured flowers ; and Riverton Gem, terra-cotta tint, changing afterwards to red. The two last-named are very beautiful varieties of autumnale and splendid border plants. All those named grow 5 or 6 feet high. The dwarf cr kinds, pumilum and magnificum, reach a height of only 2 feet ; their flowers are rich yellow, and freely produced in July. The other species are : Bigelovii, light yellow, brown centre, 2 feet ; Bolanderii, pale yellow, black disc, 2 feet ; and Hoopesii, the earliest to bloom, large, deep yellow flowers, 2 feet. Helianthemum {Stcn Rose).- — Low-growing, wide-spreading plants, natives of Europe, etc. (Natural Order Cistaceae). They are well adapted for planting on dry, sunny banks, on or in the crevices of HELIANTHUS 213 loose stone walls, for rock gardens, and other places, but they must be given a sunny position. The most familiar kind is the common Sun Rose, vulgare, a yellow- flowered, almost prostrate plant found wild in many parts of the country. Under cultivation it has developed a great many variations from the type, which are distinguished by more vigorous growth ; by flowers varying from white to deep golden and from pink to deep red, some being single and others double ; or by variegated foliage. The varieties are increased by cuttings in- serted in a frame in July, but if seeds from the varieties are sown vigorous plants bearing flowers of many colours are obtained. They give the best results when planted in poor soil, but after 5 or 6 years they usually begin to deteriorate, and should then be replaced by young plants. Pruning should take the form of removing the flower spikes as soon as the flowers fade. The best kinds are : vulgare, of which the following are good varieties : crocatum, croceum, croceum flora pleno. Yellow Standard and serpyllifolium, yellow ; cupreum, copper ; Fireball, red ; venustum, red ; rhodanthum, red ; roseum and roseum multiplex, rose ; album, white. Helianthemum alyssoides grows i| to 2 feet high, and bears yellow flowers ; formosum is quite as vigorous ; its flowers are yellow, with a dark blotch at the base of each petal ; ocymoides is a strong-growing, yellow-flowered kind from Spain and Portugal ; polifolium has forms with pink and white flowers ; and umbellatum bears white blossoms. Helianthus {Sunflower). — The Sunflowers, which belong to the Daisy family (Compositae), and are natives of North America, may be divided into two classes : the perennials, valuable border flowers for late summer and in autumn, and the annuals, most famihar of which is the common Sunflower (Helianthus annuus). Among perennial Sunflowers special mention must be made of Helianthus multiflorus and its varieties, particularly the double-flowered forms, which reach a height of 4 to 5 feet. The best are Bouquet d'or and Soleil d'or, both double flowered, quite distinct from each other ; a very fine single flower is maximus. Another species, rigidus (Prairie Sunflower), used formerly to be known as Harpalium rigidum. Whereas the root system of Helianthus multiflorus is fairly compact and the plant spreads little, the underground rhizomes of Helianthus rigidus spread rapidly, and soon form a dense, tangled mass, and the plant may prove to be a very troublesome weed if not restricted. Never- theless, it is decorative and useful for cutting, as the flowers have firm, wiry stems, and keep fresh in water for a long time. The different varieties of rigidus attain a height of 6 to 8 feet ; the best are : Daniel Dewar, deep yellow, and Miss Hellish, bright yellow, semi-double: 214 THE BOOK OF HARDY FLOWERS other perennial species are : decapetalus, small, lemon-yellow flowers ; mollis, light yellow, black disc ; and orgyalis, tall stems, clothed with long, narrow leaves and small bright yellow flowers. The annual kinds, even when represented only by the common Sunflower, form a striking feature in the garden. There are several pretty and comparatively dwarf varieties now in cultivation, varying from 3 to 4 feet in height ; some have single and some double flowers. A new race of annual Sunflowers has made its appearance within recent years. It originated in America as a cross between the common annual Sunflower (Helianthus annuus) and the wild Sunflower of North America (Helianthus lenticularis). The basal portion of the florets is of chestnut-red colour, extending in some to such an extent that the yellow is limited to the tips of the petals. The general appear- ance of the flower suggests at a little distance a large Gaillardia. Annual Sunflowers are readily raised from seed sown in the open ground in spring, while the perennial sorts can be increased to any extent by division of the clumps in autumn. Helichrysum (Everlasting Flower). — While the Helichrysums (Natural Order Compositae) contain both annuals and perennials, chief interest is centred in the annual kinds, consisting mainly of the numerous forms of Helichrysum bracteatum. These, which grow about 3 feet high, bear a profusion of Daisy-like flowers, in colours ranging from pure white to bright crimson. Apart from their beauty in the flower garden, these blossoms are extremely useful for winter decoration when cut and dried. It is essential that the flowers are cut and hung up to dry while they are still fresh. Helichrysums may be sown out-of-doors in April. A light, warm border suits them best, as might be expected from the fact that bracteatum, the species from whence they have sprung, is a native of Australia. Helichrysum belli- dioides is an alpine of prostrate growth that bears during the sum- mer pretty white Daisy-like flowers. It is of a perennial character, and thrives in well-drained light soil and a sunny spot or in the moraine. Heliopsis [Orange Sunflower). — Sunflower-like plants (Natural Order Compositae), natives of North America. They are as amenable to cultivation as the different sorts of Helianthus. The chief kinds are : laevis, bright orange, 4 feet ; scabra, orange-yellow, 4 feet ; and its varieties, Ladhams, an extra fine sort ; Pitcherianus, bright orange, and semi-plenus. All bloom in July and August. Heliotrope. — [See Heliotropium.) Heliotropium {Cherry Pie). — ^The Heliotropes, that form such a de- lightful feature in our gardens in summer, are all forms of the South American Heliotropium peruvianum, and belong to the Borage family HOLLYHOCK PALLING BELLE HELIPTERUM 215 (Boragineae). Apart from the beauty of their blossoms, which vary in colour from white or nearly so to deep purple, the Heliotropes are also remarkable for their fragrance. They are readily increased by cuttings of the young shoots taken in spring, dibbled in pots of sandy soil, and placed in a closed propagating case. Like the Fuchsia, the Heliotrope will, if kept free from frost during winter, grow rapidly in spring, and a good supply of cuttings is soon available. They are sometimes grown as standards for the flower garden, to obtain which the most vigorous are selected, and all shoots are removed until the desired height of stem is reached ; then they are allowed to branch out naturally. Care must be taken to remove any shoots that develop on the stem. When these have done duty in the flower garden during the summer they must be lifted in autumn, potted, and taken into the greenhouse. In spring, before growth recom- mences, any straggling shoots may be shortened. To obtain pyramid plants the main stem is tied upright, and the branches allowed to develop at will, just pinching out the points of any that are inclined to grow too far. Heliotrope may be raised from seed sown in a warm greenhouse in early spring. The best varieties are : President Garfield, mauve-purple ; Priapo, deep blue ; White Lady, nearly white ; Lord Roberts, metallic violet ; Miss Nightingale, dark purple ; and Madame de Bussy, blue, with a white centre. Helipterum {Immortelle). — Annuals belonging to the Daisy family (Compositae), with blossoms of an everlasting character. As a rule, the flowers are smaller than those of Helichrysum. They are very much used for wreaths, hence their popular name of Immortelle Flowers. They are readily dyed and are frequently seen of different colours in florists' shops. A distinct species is Helipterum Manglesii, which, under the name of Rhodanthe Manglesii, has long been a popular plant for growing in pots. It will, however, flower well if sown in a warm, sunny border in April, the bright satiny-pink flowers being very pleasing. All the Helipterums may be cut and dried in the same manner as Helichrysum. Hellebore. — {See Helleborus.) Helleborlne. — {See Epipactis.) Helleborus. — The Christmas Rose (Helleborus niger) and its varieties are among the choicest of hardy herbaceous plants, while the Lenten Roses (orientalis) and other species are also very beau- tiful. They belong to the Buttercup family (Ranunculaceae), and are natives chiefly of Europe and Asia Minor. The Christmas Rose needs a deep sandy loam, enriched with decayed manure, and likes partial shade. Various opinions have been given as to the most 2i6 THE BOOK OF HARDY FLOWERS suitable time of the year for transplanting it, but most agree that some time in summer is most suitable — say July. This plant forms a compact clump, and has stout, thong-like roots. If the clumps are planted whole they often fail to become estabhshed, therefore they should be carefully broken up into pieces, each containing several crowns. The colour of the liowers of the various Christmas Roses is white, flushed more or less with rose. The chief varieties of Helle- borus niger are : angustifolius, Madame Fourcade, major and maximus, known also as altifolius. The Lenten Rose (Helleborus orientalis) is less particular in its requirements, and may be transplanted in autumn. A partially shaded situation suits it best. This grows from 12 to 18 inches high, and the flowers, borne in spring as indicated by the popular name, are white, rose, or purplish and freely spotted inside. Another species, viridis, which is a native of Britain, is variable, but the flowers are of some shade of green. Many hybrids between this and orientalis have been raised, and these, with varieties of orientalis, form a selec- tion of beautiful sorts. Chief among them are : Apotheker Bogren, crimson-purple, veined and spotted crimson ; C. Benary, white, spotted inside crimson ; Cupreus, dark plum ; Dr. Moore, bright rose ; F. C. Heinemann, purplish-rose, spotted crimson ; Frederick, white, pink spots ; Gertrude Jekyll, white ; Lalla Rookh, rose, spotted purple ; Mont Blanc, large white ; Ne Plus Ultra, purple ; Prince of Wales, rose with dark spots ; punctatissimus, purple, freely spotted deep purple ; roseus grandis, fine large rose ; and Rubra, deep red. Propagation of both Christmas and Lenten roses is by division of the roots at the times recommended for planting. They may also be raised from seeds sown as soon as ripe, but growth is slow. Helonias bullata. — A strange and rare perennial plant, belong- ing to the Lily family (Liliaceae), and native of North America ; the flower stem, 12 to 18 inches high, bears in June and July a spike of pretty pink flowers. In autumn the leaves turn to a bright red tint before they fall. The plant needs a moist, shady position in a peaty soil ; it can be increased by division, carried out in autumn. Helxine Solierolii. — A dense carpeting plant, very useful for flower beds in summer. It is native of Sardinia, and belongs to the Natural Order Urticaeae, and is often planted in the rock garden, where it spreads quickly. Frost rarely injures it, but in a wet winter it is liable to " damp off." The flowers and fruits are insignificant, its claim to recognition being its dense carpet of bright green. HEMEROCALLIS 217 Hemerocallls {Day Lily). — A free-growing race of perfectly hardy perennials that will thrive in any ordinary garden soil. They belong to the Lily family (Liliaceae), and are natives chiefly of Japan. They quickly form a tuft of strap-shaped leaves, and the flower spikes are 3 or 4 feet high. The blossoms are chiefly some shade of yellow, and though individually they last but a day in bloom, a succession is kept up for a considerable time. They bloom from June to August: Hemerocallis is readily increased by division, carried out in autumn. The best are : aurantiaca major, rich orange ; disticha flore pleno, bronzy-yellow, double ; Dumortierii, rich yellow exterior, bronzy- orange interior, the dwarfest of all ; flava, bright clear yellow ; fulva, bronzy-buff ; fulva flore pleno, a double counterpart of the preceding ; and Thunbergii, bright 3^ellow. Hemlock Spruce. — {See TSUGA.) Hemp.— (5^^ Cannabis.) Hemp Agrimony. — {See Eu- PATORIUM.) Hepatica. — {See Anemone Hepatic A.) Heracleum {Cow Parsnip). — Herbaceous perennials, belonging to the Natural Order Umbel- liferae ; few have any refinement, and the best are more fitted for the wild garden than for the border. The chief kinds are : giganteum, which forms a large tuft of much-divided spreading leaves, and in August the stout erect stem, 10 or 12 feet high, is termin- ated by a huge branching umbel of comparatively small whitish flowers. This plant frequently forms the subject of an advertise- ment in the newspapers, where it is described as bearing flowers the size of a cart-wheel. Another striking kind is Mantegazzianum, not so tall as giganteum ; it is recorded that an umbel of this has been counted containing 10,000 flowers. Both sorts will grow in almost any soil, but as their value depends to a great extent upon their size, manure should be added to the ground. They can be pro- pagated to any extent by means of seeds, or in a lesser degree by division, in autumn ; both are natives of the Caucasian region. THE CHRISTMAS ROSE (Helleborus niger) 2i8 THE BOOK OF HARDY FLOWERS Herb Lily.— (5^e Alstroemeria.) Herminium (Musk Orchis). — These are hardy Orchids (Natural Order Orchidaceae), natives of Europe, inchading Britain. Her- minium alpinum has Grass-like leaves, and a spike about o inches high of white flowers in early summer. The commonest species is Monorchis, which grows usually in dry, chalky soils : from a pair of basal leaves this pushes up a spike about 6 inches high, bearing several small greenish flowers of a pronounced musky odour. Though interesting, these must be regarded more in the light of curiosities than as garden ornaments. A compost of chalky loam with a little leaf-soil is suitable ; propagation is by division in late summer. Herniaria glabra. — This is the only member of the genus (Natural Order Illecebraceae) worthy of recognition ; it is native of Europe and Northern Asia, and forms a dense mass of small dark green leaves, and is much used for carpet bedding. Besides this, it may be planted in the rock garden. It is quite hardy, and can be increased to any extent by division, carried out in autumn or spring. Hesperis matronalis (Rocket). — The only kinds in general cul- tivation are Hesperis matronalis and its varieties. It is a native of various parts of Europe, belongs to the Wallflower family (Cruciferae), and is a general favourite, especially in old-fashioned gardens ; the flowers are fragrant, and their scent is especially pronounced in the evening. Though sometimes treated as an annual, it is really a herbaceous perennial, reaching a height of about 2 feet, and flower- ing from May to July. The typical kind has single purple flowers, while the varieties include a single and double white, single lilac, and double purple. The double kinds are liable to die out unless young plants are frequently raised from cuttings. The most suc- cessful growers propagate annually from cuttings when the j^oung shoots are pushing up in spring. As a rule these require thinning, so that the surplus growths can be inserted as cuttings on a sheltered border and covered with a handlight. In addition to the common name of Rocket, the subject of this note is also known as Dame's Violet, presumably because the blossoms are deliciously fragrant in the evening. The single-flowered Rockets are readily raised from seed. All thrive in ordinary garden soil. Heuchera (Alum Root). — A charming class of summer-flowering herbaceous plants that have come very much to the fore within recent years. They belong to the Natural Order Saxifragaceae, and are natives of North-West America. There are many species, but chief interest centres in Heuchera sanguinea, and the numerous garden forms obtained by crossmg it with one or two others, especially .*G F. /^ ^ y/ fti^' ' r/ ^ jajjH THE ALGERIAN IRIS (IRIS STYLOSA) A HARDY BALSAM iIMPATIENS HYBRIDA) SHEEP'S BIT SCABIOUS (JASIONE JANKAE) A PRETTY ANNUAL (GILIA TRICOLOR) HIBISCUS 219 micrantha. The Heucheras form neat tufts of heart-shaped lobed leaves ; the flower stems, which reach a height of 2 to 3 feet, bear a profusion of small blossoms, gracefully disposed on slender branch- ing spikes. Of the two species referred to Heuchera micrantha has small white flowers with pink stems, and in sanguinea the blooms are bright red. The best of the garden forms (usually classed as varieties of sanguinea) are : alba, white ; Edge Hall variety, bright rose ; Flam- beau, rich red ; Rosamunde, delicate pink ; Rose Queen, rich rose- pink ; splendens, bright crimson, and Walkerii, the richest coloured of all. Heucheras may be raised from seeds sown in spring in a frame. As this mode of increase cannot be depended upon in the case of the named varieties, these are propagated by division in spring. The plants thrive in well-drained sandy loam in bright sunshine. The long graceful sprays are especially valuable for use in a cut state. Hibiscus (Mallow). — Hibiscus belongs to the Mallow family (Malvaceae), and comprises a large number of species, the majority being shrubs, though several are herbaceous plants. Few are avail- able for the outdoor garden, the majority being natives of tropical countries. The best shrubby kind, so far as the outdoor garden is concerned, is syriacus, an Oriental species, forming a bush 5 to 10 feet or more high, and sometimes met with under the name of Althaea Frutex. Under cultivation it has developed a large number of varieties, some with white, others red or blue, some with single, and others with double flowers. A few good ones are : Hamabo, blush, with dark blotches ; Celeste, blue ; flore pleno, double ; paeoniflora, double ; ranunculaeflorus, double ; purpurea, purple. All bloom in August and September. They thrive in a sunny position in ordinary garden soil, are increased by cuttings in a cold frame in October, and require no regular pruning. The greenhouse kinds usually give the best results when planted in a border in a warm greenhouse, but they may also be grown in pots. They are remarkable in many cases for their large brilliantly coloured flowers. A few good kinds are : abelmoschus, large yellow flowers with dark blotches, native of the Tropics ; coccineus, a red- flowered kind from the Southern United States ; Manihot, a vigorous tropical plant, with very large yellow blooms ; rosa-sinensis, an ever- green shrub, with large red flowers. There are many varieties of the last-named, of which those with double flowers are highly appreciated. Hidalgoa Wercklel {Climbing Dahlia). — This near relative of the Dahlia family does not form a tuberous root as they do, and must be kept during the winter in the greenhouse. It belongs to 220 THE BOOK OF HARDY FLOWERS the Daisy family (Compositae), and is native of the mountainous districts of Costa Rica, If planted out when it is safe to do so, the long, flexible shoots grow rapidly, and soon cover a consider- able space. It climbs by means of the long leaf stalks, which twist themselves around any support. The much-divided leaves are very pretty. Wlien studded over with its bright scarlet flowers like single Dahlias, this plant arrests attention by reason of its showy character and distinct appearance. A bright and warm summer is essential in order to have it at its best. It is propagated by cuttings of the young shoots in spring, and treated like Fuchsia. It will grow in ordinary potting compost, and when planted out in summer prefers a fairly light soil. Hieracium {Hawkweed). — Man}^ of the Hieraciums (Natural Order Compositae) are troublesome weeds in this country ; they have branching spikes of Dandehon-like flowers. Few are of value as garden flowers, the best being Hieracium aurantiacum, 12 to 18 inches high, with bright orange-coloured flowers from July until autumn. The blooms of Hieracium rubrum are orange-scarlet, and in villosum, which is dwarfer than the other two and has whitish, downy leaves, they are bright yellow. Hieraciums are usually planted in the rock or wall garden, but care must be taken that they are not associated with delicate plants. They grow in ordinary soil in a sunny spot, and reproduce themselves readily from seeds, often self sown. Himalayan Poppy. — {See Meconopsis.) Hippeastrum. — The Hippeastrums, which belong to the Lfly family (Liliaceae), and are native chiefly of South America, are a gorgeous race of bulbous plants, consisting of several species and innumerable garden forms. With one exception, they require glass protection throughout the year. The exception is Hippeastrum pratense, a native of Chili, Though this name is the correct one, the plant is more generally met with in gardens as Habranthus pratensis. The flowers, which are freely borne two or three together on stems from 12 to 18 inches in height, are funnel-shaped, about 3 inches across, and brilliant scarlet with yellowish centre. They are at their best at the end of May and in June. The plant needs much the same treatment as the Belladonna Lily ; that is to say, it thrives in a narrow, sheltered border against a greenhouse facing south. The border should be thoroughly prepared by taking out the soil to the depth of 2 feet, on the bottom is placed about 6 inches of drainage material, while the compost is made up mainly of fibrous loam with a mixture of leaf-mould and sand. Planting should be done in autumn, and the bulbs put 6 inches below the surface. So treated. HIPPOCREPIS 221 they will stand for many years without being disturbed, and flower annually. Hippocrepis (Horseshoe Vetch). — The only member of this genus (Natural Order Leguminosae) in general cultivation is Hippocrepis comosa, a low-growing, creeping plant with clusters of yellow Pea- shaped flowers. On a warm, sunny part of the rock garden it will bloom from spring until autumn, and is readily increased by division or by seeds in early spring. Hippophae rhamnoides (Sea Buckthorn). — This shrub belongs to the Natural Order Elaeagnaceae, and is widely distributed through Europe and temperate Asia, more especially in the vicinity of the sea, where it stands considerable exposure. It is useful for plant- ing on waste land near the sea, and may be used as a screen or shelter for other shrubs. In addition, it is available for planting inland, where it is very effective in winter, when the leafless branches are covered with orange-coloured berries. To procure berries, how- ever, it is necessary to plant both male and female plants together in the proportion of one male to five or six females, and when plants are procured care should be taken to obtain both sexes. Plant in ordinary garden soil. No pruning is necessary. As a rule, it is found between 8 and 12 feet in height. Hippophae salicifolia, from the Himalaya, grows into a tree of moderate size. Holboellia latifolia is an evergreen climbing shrub from the Himalaya belonging to the Barberry family (Berberidaceae). It is suitable for the milder parts of the country, where its vigorous growth and dark green leathery leaves attract attention. The flowers are not very conspicuous, and the fruits are rarely matured in this country. Plant in ordinary garden soil, and prune fairly hard after flowering. Holcus {Soft Grass). — The only member of the genus (Natural Order Gramineae) worthy of consideration as a garden plant is Holcus lanatus albus variegatus, a pretty white-striped Grass, useful for the front of or as an edging to the herbaceous border. It is readily increased by division in spring. Holcus lanatus grows wild in Britain. Holly. — {See Ilex.) Hollyhock. ^(See Althaea rosea.) Honesty. — {See Lunaria.) Honeysuckle. — {See Lonicera.) Hoop Petticoat. — {See Narcissus Bulbocodium.) Hop. — {See HuMULUs Lupulus.) Hordeunn. — From an economic standpoint, by far the most important member of the genus (Natural Order Gramineae) is the Barley (Hordeum viilgare), while as an ornamental Grass, Hordeum 222 THE BOOK OF HARDY FLOWERS jubatum, native of North America, is noteworthy. It is sometimes known as the Squirrel Tail Grass, and may be compared to a Barley with very long, conspicuous awns. It grows about i8 inches high, and thrives in ordinary garden soil. Seed should be sown out-of- doors in spring. Horehound.- {See Marrubium.) Hornbeam. -(5/?g Carpinus.) Horned Poppy. — (See Glaucium.) Horse Chestnut. — {See Aesculus.) Horse Tail.— (See Equisetum.) Horse Thistle. — {See Cnicus. ) Hottonia palustrls {Wafer Violet). — A very pretty aquatic, be- longing to the Primula family (Primulaceae), which thrives best in shallow water. It is native of Europe. The stems, which are wholly submerged, are clothed with finely divided fern-like leaves of bright green tint. The pale mauve flowers, which are produced during the summer, float on the surface of the water. As with many other aquatics, this can be established by tying the plant to a brick and sinking it in the water. It will soon root in the mud at the bottom and grow quickly. Hound's Tongue. — {See Cynoglossum.) House Leek. — {See Sempervivum.) Houstonia {Bluets). — A delightful race of very dwarf, free- flowering plants (Natural Order Rubiaceac), which bear blue or white flowers throughout the entire summer. They are seen at their very best in a sheltered chink in the rockery. The plants are but from 3 to 4 inches in height when in bloom, the neat, rounded tuft of leaves lying close to the ground. A well-drained, light loamy soil and partial shade suit them best. The various kinds are : caerulea, blue ; caerulea alba, white ; purpurea, purplish ; purpurea alba, white ; and serpylli- folia, bright blue. They can be increased by division, which must be Ccuefully carried out in September or early spring, or by seeds, which ripen freely ; indeed, in the case of Houstonia caerulea, self- sown seedlings are very frequent. Humea. — The only species in cultivation is Humea elegans ; it belongs to the Daisy family (Compositae), and is native of Australia. It is of biennial duration, and used for the decoration of the flower garden in summer. It forms an erect stem furnished with large oblong, lanceolate, fragrant leaves, and bears a loose panicle of small, reddish flowers in summer ; the secondary branches of the panicle arc drooj)- ing, and a well-grown plant is most graceful. Seed is sown about midsummer in a pan of light silted soil, such as a mixture of loam, THE OLD SCARLET LYCHNIS CHALCEDONICA HUMULUS 223 leaf-mould, and sand, and just covered with a little very fine soil. Germination quickly takes place if the pan of seeds is kept in a shady frame. As the seeds are small, watering through a fine rose must be carefully carried out. WHien large enough the young plants are pricked off into pans or boxes of soil similar to that described. They are kept in the frame, given plenty of air to ensure sturdy growth, and sub- sequently are potted singly in small pots, and will be ready for shifting into pots 5 inches wide in September. They must be wintered in a light, airy greenhouse just free from frost. Early in spring they should have a shift into larger pots, so that when planted out, about the end of May, they will develop good spikes of blossoms. The handling of the leaves sets up a severe irritation of the eyes of some persons, and this frequently leads to inflammation. Humulus (Hop). — Apart from its economic value, the common European Hop (Humulus Lupulus), which belongs to the Natural Order Urticaceae, is an ornamental, rapid-growing climber. It is of a herbaceous character, but if planted in good soil will soon cover a considerable space. For quickly clothing arches, trellises, arbours, or pergolas it is well suited. In late summer the plants are laden with clusters of the Hops of commerce. Increase is by division when dormant. The Japanese Hop (Humulus japonicus) is only of annual duration ; it is a vigorous climber of considerable ornamental merit, but is in this respect greatly surpassed by its variegated-leaved variety, of which the foliage is delightfully mottled with white. The Japanese Hop may be sown out-of-doors in spring, but the better plan is to raise it under glass and plant out in good soil late in May. If treated in this way the plants are effective much earlier in the season than if sown in the open ground. Hunnemannia fumariaefolia. — A showy Cahfornian perennial, member of the Poppy family (Papaveraceae), with much-divided glaucous leaves and yellow flowers, suggestive of those of Esch- scholtzia californica. It reaches a height of 2 to 3 feet, and requires a light, warm soil. Under these conditions it will flower throughout the summer. It is increased by division when dormant, or by seeds, which are best protected by a frame during their earlier stages. Huntsman's Cup. — {See Sarracenia purpurea.) Hutchinsia alpina. — {See NoccAEA alpina.) Hyacinth. — {See Hyacinthus). Hyacinthus {Hyacinth). — The Hyacinths of our gardens (Natural Order Liliaceae) have been obtained from the South European kind, orienlalis. The process of selection has occupied many, mau}^ years, and new vaiieties are still being raised. Most Hyacinth bulbs are 224 THE BOOK OF HARDY FLOWERS grown by the Dutch, for in Holland immense areas are devoted to their cultivation. The bulbs should be planted in October or early in November, and covered with 4 inches of soil. WTien their season is past and the beds are required for summer flowers, the Hyacinths are lifted, with as little injury to the leaves and roots as possible, and laid in an out-of-the-way border to ripen off gradually. When the leaves have died down the bulbs are dug up and laid out to dry, then cleaned and stored until planting time. The bulbs cannot be expected to flower so well the second year, and though they cannot be recom- mended for beds, yet there are many places in the garden, such as in groups in the foreground of shrubberies, where their bright-coloured blossoms will be much appreciated. For outdoor flower- ing, the very choice varieties need not be employed, a good selection of the cheaper kinds being as follows. Red and pink— BdJon Van Tuyll, Cardinal Wise- man, Fabiola, Garibaldi, General Pelis- sier, Gertrude, Gigantea, King of the Belgians, Moreno, Reine des Fleurs, and Robert Steiger. White — Baroness van Tuyll, La Grandesse, L' Innocence, Ma- dame van der Hoop, and Mr. Plimsoll. Blue — Baron van Tuyll, Charles Dickens, Grand Lilas, Grand Maitre, King of the Blues, Leonides, M. de Lesseps, Marie, and Royal Blue. Other species of Hyacinths are : amethystinus (Spanish Hyacinth), with bright blue flowers (and its white va- riety, albus), that grows from 6 to 12 inches high and is very attractive in May ; while azureus bears pretty blue flowers before winter has left us. Several bulbs that have at one time or another been included in the genus Hyacinthus are now placed in other groups, particu- larly Muscari and Scilla. That summer-flowering bulb, with stately spikes of white flowers, formerly known as Hyacinthus candicans, is now Galtonia candicans. Hydrangea. — Shrubby plants belonging to the Natural Order Saxifragaceae, consisting largely of North American, Chinese, Japanese, THE FLORIST'S HYACINTH HYDRANGEA 225 and Himalayan species. Many have long been popular garden shrubs, whilst one or two sorts are used extensively for greenhouse and room decoration. Some kinds are hardy throughout the British Isles ; others can only be grown successfully in the milder counties. Those for outdoors require rich loamy soil, and as they are " rank feeders," a surface dressing of manure occasionally to the ground immediately surrounding the roots, is attended by good results. Hydrangea hor- tensis, from China and Japan, is used more often than any other kind for greenhouse decoration. Many varieties have developed, the most popular being those where practically all the flowers are sterile, the reproductive organs being displaced by large showy bracts. There are many varieties, however, which bear a mixture of sterile and fertile flowers, which are equally beautiful ; Mariesii, for instance, with large reddish sterile flowers and blue fertile ones, and Veitchii, a similar plant, with white sterile blooms, are very showy. By careful cultivation, the heads of these sterile flowers attain large proportions. Cuttings of the points of shoots are rooted in summer, and the young plants kept in small pots until January. They are then placed in a compost of 3 parts good loam to i part leaf-mould and I part well-decayed manure with a little sand, in 5- or 6-inch pots, and grown on in a greenhouse to produce a single head of flowers each. If such plants are kept for another year they may produce 4 or 6 heads each, and in later years a plant may carry two hundred heads of flowers. Many large plants are found out-of-doors in the milder parts of the country. A peculiarity of the plant is that although the flowers may be normally pink, the addition of iron to the soil causes them to turn blue. Upon no account prune the shoots of Hydrangea hortensis before they have flowered. As a rule, pruning should take the form of thinning. The next most popular kind is paniculata, a native of Japan ; it is an upright bush, 5 or 6 feet high, which bears terminal panicles of fertile and sterile flowers in August and September. The variety grandiflora differs by reason of all the flowers being sterile. It often forms exceptionally large inflorescences, those on plants growing in rich soil being often between 12 and 18 inches long. It is much used for forcing. The young branches may be cut back to within two or three buds of the old wood in February each year. The young shoots must also be well thinned if the finest flower-heads are desired. Hydrangea arborescens var. grandiflora is another kind which bears handsome, rounded heads of white sterile flowers in July ; it 226 THE BOOK OF HARDY FLOWERS must have rich soil and be pruned hard back about February. Petio- laris is a useful Japanese plant of climbing habit ; it climbs naturally by means of aerial roots, attaching itself to its support in a similar manner to the Ivy, and may be used for walls or for covering tree trunks or the overturned butts of trees ; stellata and Lindleyi are well-marked varieties of hortensis. Although there are many other species, those referred to are the best for general use. Hydrocharis {Frog Bit). — A British plant (Natural Order Hydro- charidaceae) which, rooting in the mud at the bottom of shallow water, will quite cover the surface with curious brown circular leaves. The flowers are not of any particular account. Hydrophyllum {Water Leaf). — Hardy perennials (Natural Order Hydrophyllaceae), natives of North America. They reach a height of 12 to i8 inches, and prefer a moist soil. The species are : appen- diculatum, with blue flowers ; Canadense, white ; and virginicum, blue. The popular name is derived from the fact that the pinnate leaves become filled with water during spring. All can be increased by division in early spring. The blossoms are borne more or less throughout the summer. Hymenanthera crassifolia is a dense, low-growing bush from New Zealand, belonging to the Natural Order Violaceae. Attaining a height of 1 1 or 2 feet, it forms a mass of rather rigid shoots clothed with small evergreen leaves. The flowers are not very showy, and the white fruits are not produced in sufficient numbers to make them effective. Plant in ordinary garden soil, increase by seeds or cuttings, and give no regular pruning. Hypericum {St. John's Wort). — Hardy, shrubby, and herbaceous plants are found in this group (Natural Order H}^ericaceae). They are widely distributed through Europe, temperate Asia, and North America, and some occur as weeds in the British Isles. The majority have golden blossoms, but in a few cases the flowers are pale yellow. Most of the shrubby kinds are valuable plants, for they blossom freely from July to October, a time when flowering shrubs are not common. They thrive in good loamy soil, and should usually be given an open position, although one kind, calycinum, gives good results in semi- shade. The dwarf, shrubby kinds and the best of the herbaceous sorts are worth a place on the rockery, whilst the more vigorous of the perennials should find a place in the herbaceous border. The shrubby kinds are usually increased by cuttings in summer, but some are propagated from seeds or by division. Other kinds may be divided in spring. All the shrubby sorts are benefited b}' being pruned rather vigorously in February. Remove old, worn-out HYSSOPUS OFFICINALIS 227 branches and very weak shoots, and shorten the remainder half way. Hypericum calycinum is often grown as a carpet plant beneath trees, and when this is the case it should be cut to the ground each spring. The chief kinds are : Androsaemum, sometimes called the Tutsan, a European plant i foot to 2 feet high, its yellow flowers are followed by black fruits ; aureum, from the Southern United States, is a showy plant ; Buckleyi, a dwarf plant, 6 inches high, is from Georgia and Carolina, it is a neat, free-flowering specimen, suitable for the rock garden. Coris, a dwarf herbaceous kind, bears very large flowers, and is grown in the rock garden ; calycinum, the Rose of Sharon, has already been mentioned, its flowers are 3 inches across ; densi- florum, kalmianum, and prolificum are three dense-growing kinds from North America, they grow about 2 feet high, and produce their small flowers in large heads. Hypericum elatum is a shrub 3 to 4 feet high, of bushy habit. Hookerianum should be selected when a few kinds only are wanted ; it grows 2 1 feet high, and blooms profusely, native of the Himalaya. Moserianum is the best of the dwarf kinds for planting in specimen beds on lawns ; growing i foot high, it forms compact plants bearing a profusion of golden blossoms, it is of hybrid origin. Olympicum, from Asia Minor, is conspicuous by reason of its small glaucous leaves and profusion of flowers ; its proper place is the rock garden. Patulum var. Henryi is a graceful Chinese kind, 2 feet or so high ; it grows freely and blooms profusely. Humifusum, orientale, and perfoliatum may be grown in the herbaceous border. The rock garden kinds need sandy loam and a sunny position. Hyssopus officinalis (Hyssop). — A wefl-known aromatic herb (Natural Order Labiatae), that forms a bushy plant about 18 inches high, and when the bluish-purple blossoms are open in summer it is fairly ornamental. It thrives in ordinary garden soil, and can be propagated either by seeds or cuttings ; the latter should be dibbled in a shady border at the end of August, while seed is sown in spring. Iber'is (Candyiuft). — The Candytufts, which belong to the Wallflower family (Cruciferae), and are natives chiefly of Southern Europe and Asia Minor, may be divided into two sections, annuals and perennials. The latter are sometimes referred to as herbaceous plants, but they are really shrubs or sub-shrubs, for the stems are permanent, and the foliage is more or less evergreen. As the tallest of them rarely exceed 12 inches in height, they are well suited for the rock garden, particularly Iberis sempervirens, which will drape the front of a large boulder, forming a cascade of white blossom. They flower during April and May and more or less during summer, and are 228 THE BOOK OF HARDY FLOWERS increased by cuttings and division in late summer. Seeds also ripen from which, if sown in spring, young plants are easily raised. Peren- nial Candytufts like a sunny spot and will grow in ordinary well- drained soil. In the front row of the herbaceous border they are seen to advantage, while on dry walls and in the rock garden they are especially charming. A selection of the best includes : correae- folia, Garrexiana, gibraltarica. Little Gem, saxatilis, sempervirens, sempervirens fiore pleno, and Tenoreana. The last-named has pale rosy- lilac flowers, those of the others are white. The dwarfest of all is saxatilis, while Little Gem is a dwarf, compact plant 6 inches high. The annual Candytufts have been greatly improved within recent years, and different strains, quite distinct from each other, are now to be obtained. The large spikes of the Hyacinth- flowered varieties make a particularly bold show, the range in colour extending through white, rose, carmine, and crimson. Seeds are sown out-of-doors in March and April, and the seedlings must be thinned out well, for a good plant, when at its best, is about 12 inches through. Annual Candytufts flourish in ordinary garden soil, and prefer a sunny spot. They are thoroughly hardy, and seed may be sown in autumn to pro- duce flowering plants in spring. The seedlings do not transplant readily, hence seed should be sown where the plants are to bloom. Ice Plant.— (S^g Mesembryanthemum.) Idesia polycarpa is a rare ornamental tree from China and Japan, belonging to the Natural Order Bixaceae. Its chief attractions are the large and handsome heart-shaped leaves, which are borne on long reddish stalks. The flowers are rather small and yellowish in colour ; they are succeeded, however, by showy, round black fruits in bunches 4 to 6 inches long, resembling bunches of small grapes. It should be given a sunny position on a lawn where the soil is well drained, deep, and loamy. Propagation is by seeds, and any necessary pruning should be directed towards shaping the tree and keeping the leading shoot clear of rivals. Ilex {Holly). — This is an important class of hardy trees and shrubs (Natural Order Aquifoliaceae), for it includes the Common Holly, one of our few large-growing native evergreens, and an invaluable plant for the garden. The various species are widely distributed through Europe, North India, China, Japan, and North America, whilst many tender kinds occur in South America and elsewhere. The hardy kinds, however, alone concern us. There are two distinct groups, one of which bears evergreen and the other deciduous leaves ; the former group is the more valuable for the garden. The Hollies possess several economic properties, for in addition to the timber ILEX 229 being hard and useful for turning, carving, etc., the bark of some kinds is of medicinal value, whilst bird-lime is prepared from other sorts. The leaves of some sorts are also used for tea. Those of the South American Ilex paraguensis are of special value for the purpose. The Common Holly, Ilex Aquifolium, can be grown throughout the British Isles except in water-logged ground, and it often occurs wild in Pine and Oak woods, for instance, in the New Forest and in the Forest of Dean. It is, however, planted largely in the garden both as a decorative tree and as a hedge. For an evergreen hedge it is perhaps the best all-round shrub that can be procured. There are many varieties, some distinct by reason of the shape or spiny character of the leaves and others by the leaf-colouring, for there are many forms with gold- and silver-variegated foliage. Hollies must not be disturbed except at the right season, especially if the soil is to be shaken from the roots, and it is often fatal to move them during winter. Late April and May, and August and September, are the best months for transplanting. People frequently err by over-pruning Hollies. They clip them as they would a hedge, whereas pruning should take the form of thinning the shoots, removing one here and there which is throwing the tree out of shape. This may be done in summer. Holly hedges should be clipped in August. A few useful varieties of the Common Holly are : Green-leaved— angustifolia, a small-leaved kind ; camelliaefolia, a handsome upright- growing tree with large dark green leaves ; Donningtonensis, with narrow leaves ; integrifolia and scotica, with almost spineless foliage ; and ovata, with distinct leaves of very even size. Golden-leaved — Golden Queen, Golden King, aurea marginata, and aurea medio-picta. Silver leaved — Silver Queen, Handsworth Silver, argentea marginata. The yellow-fruited kind (fructu-luteo) and the weeping Holly (pendula) ought also to be grown. There is another set of Hollies with large broad leaves, which are usually included under Ilex AquifoHum, though many of them are hybrids between Ilex platyphylla or Ilex balearica. Good ones are : altaclarensis, Shepherdii (sometimes called Hodginsii), nigrescens, and nobilis. Other useful species are : cornuta, a dense evergreen bush from China ; crenata, a dwarf, compact evergreen from Japan with tiny evergreen leaves ; latifolia, a large-leaved Japanese plant ; opaca, the American Holly, with fruits as showy as those of our common kind ; Pernyi, a handsome new evergreen species from China, with small leaves ; and Veitchii, another new Chinese kind, related to the last-named. 230 THE BOOK OF HARDY FLOWERS As the Common Holly is so often grown for its fruits, it must be understood that male and female flowers appear on different trees, therefore the planting of both kinds is essential. Illtcium. — This group, which belongs to the Magnoha family (Magnoliaceae), is composed of a few evergreen shrubs from China, Japan, and North America, which may be grown out-of-doors in the milder parts of the country, but require greenhouse protection else- where. They thrive in loamy soil containing a little peat ; are usually raised from seeds, and require no other pruning save what is necessary to shape the bushes. lUicium floridanum, from the Southern United States, has reddish star-shaped flowers, and religiosum, from China and Japan, has cream-coloured blooms. Flowering takes place during late spring and early summer. Impatiens {Balsam). — Though this is an extensive class, belong- ing to the Geranium family (Geraniaceae), few are of value for the outdoor garden. The Common Balsam (Impatiens Balsamina) is a popular annual for growing under glass, and occasionally is bedded out during summer. For the latter purpose seed is sown late in March in warmth ; it germinates quickly, and the young plants make rapid progress if potted in light, rich soil. By the second week in June, at which time they should be established in 5-inch pots, they may be planted out. If the season is favourable they will give a good display, but not for very long. Two shrubby kinds, Impatiens Holstii, with vermilion flowers, and Oliverii, pale mauve, are grown from cuttings in spring like a Fuchsia, and planted out-of-doors early in June. Only in a warm season are they satisfactory in the open. The two following annuals reproduce themselves readily from seeds, namely, amphorata, purple, and Roylei (also known as glandulifera), rosy-purple. Both reach a height of 6 feet or more, and are very striking, but suitable only for the wild garden or woodland. Incarvillea (Trumpet Flower). — Showy herbaceous perennials (Natural Order Bignoniaceae), natives of China and Turkestan. They form stout, fleshy roots, and in spring produce a tuft of spreading pinnate leaves ; the flower spike may be from 18 inches to 3 feet high, and bears trumpet-shaped blooms. Incarvillea Delavayi is the most popular kind, and has rose-red blooms. Somewhat similar is grandiflora, with flowers of deeper shade ; Olgae and variabilis have bright rose-coloured blooms ; variabilis differs from the others in its finely cut fern-like foliage. All the Incarvilleas flower during June and July. The stout, fleshy roots are remarkably brittle, so that great care must be taken in handling them. Seeds are some- times produced from which young plants can be raised ; it is sown THE BRILLIANT PRIMULA "UNIQUE" INDIGOFERA GERARDIANA 231 in sandy soil in spring, and placed in a frame. In the case of estab- lished clumps, division may also be carried out in autumn, though they are best left undisturbed as long as possible. In cold gardens these plants should be protected by a heap of ashes over the crowns; Indian Corn. — {See Zea.) Indian Cress. — {See Tropaeolum majus.) Indian Pink. — {See Dianthus Chinensis.) Indian Shot. — {See Canna.) Indigofera Gerardiana is the only shrub in this group with which we need concern ourselves, although Indigofera tinctoria, of the Tropics, is a much more important plant, for it is the source of indigo of commerce. Indigofera belongs to the Pea family (Legu- minosae), and the species Gerardiana is a native of the Himalaya. When planted against a wall it grows 12 or 15 feet high, the main branches surviving and producing long shoots each year which bear elegant pinnate leaves and dense racemes of rosy-red flowers during July and August. In the open it is usually cut to the ground line each year, but new shoots appear from the rootstock, and grow between 2 and 3 feet long during summer. Flowers are borne quite freely. Pruning of plants in beds should take the form of cutting all shoots to the ground in February. In pruning plants on a wall, cut back the previous year's shoots to within a bud or two of the base. Plant in deep loamy soil, and increase from cuttings. Inula. — Vigorous herbaceous plants, belonging to the Daisy family (Compositae), and natives of the Northern Hemisphere. In late summer and early autumn they bear yellow single flowers. Inulas thrive in ordinary garden soil, and may be increased by division, root cuttings, or seeds. Division is carried out and root cuttings are taken in autumn ; the latter are made by cutting the roots into pieces about 4 inches long, which are dibbled into sandy soil or a sheltered border ; they will soon form plants. Seeds may be sown out-of-doors in spring. The best are : ensifolia, a neat, compact rock plant, about 9 inches high ; glandulosa, 2 feet ; glandulosa fimbriata, with fringed petals ; grandiflora, 2 feet ; Helenium, having large oblong leaves, 6 feet ; Hookerii, 2 feet ; montana, a little plant, suitable for the rock garden ; Oculus-Christii, 2 feet ; and Royleana, 2 feet. lonopsidium acaule (Violet Cress). — A dainty Httle annual, member of the Wallflower family (Cruciferae), which grows only about 2 inches high, and bears pretty little lilac-blue flowers throughout spring and summer. It is seen at its best in a half-shaded place in the rock garden. Seed may be sown in spring, where the plants are 232 THE BOOK OF HARDY FLOWERS to flower. Once established, it will reproduce itself by means of self-sown seeds, which come up freely. The Violet Cress is a native of Portugal and the North of Africa. Ipomoea {Morning Glory). — An extensive group of chiefly climb- ing plants (Natural Order Convolvulaceae) which are more numerous in the tropical than in temperate countries. That brilliantly coloured climbing annual, known as Convolvulus major, is classed by botanists as Ipomoea purpurea. The chief annual kinds of Ipomoea that may be grown out-of-doors in a sheltered spot are : rubro-caerulea, a Convolvulus-like plant, with large sky-blue flowers, soon becoming suffused with red ; and versicolor, bearing spikes of red flowers which subsequently change to yellow ; this is a useful, quick-growing annual. A Mexican tuberous kind, Purga, will survive the winter if the roots are protected from frost and planted at the foot of a south wall ; the slender shoots entwine themselves around any support, and soon cover a considerable space. The purplish-rose flowers appear towards the end of summer, and continue into autumn. In the south-west of England it is quite hardy. Iresine. — The Iresines, which belong to the Natural Order Amar- antaceae, and are native of South America, are well-known bedding plants, their chief attraction being their coloured leaves as the flowers are not at all showy. They are easily grown, and if a few plants are wintered in the warm greenhouse they will produce numerous shoots in spring, and thus form roots quickly. If potted and kept in a greenhouse or frame they will form good plants by bedding-out time ; they thrive in ordinary potting compost of loam, with a little leaf-mould and sand. Those generally used for bedding are Herbstii, with deep purplish-crimson leaves ; Herbstii aureo-reticulata, leaves veined with gold ; and Lindenii, deep red leaves. Iris. — The different members of the genus Iris (Natural Order Iridaceae) occur over the northern and temperate regions of both hemispheres. The most accommodating race of all is that com- monly called Flag or German Iris, which has been obtained from several distinct species, such as amoena, neglecta, pallida, squalens, and variegata. The Flag Irises will thrive in adverse conditions, in shade, in town gardens, on a wall, or a hot bank, though they appre- ciate good border soil. In planting, the rhizomes should only be just covered ; they should be disturbed as little as possible, for they take a year or two to recover fully. The flower consists of the standards or erect petals, and the falls or drooping petals. In some varieties the colours of the two are quite distinct. The standards and falls are here indicated by the initial letter of each; IRIS 233 A good selection of German Irises is as follows : albicans, white ; atroviolacea, claret ; aurea, golden-yellow ; Black Prince, (s) purplish- lilac, (f) almost black ; Blue Boy, (s) light blue, (f) purple ; Brides- maid, (s) pale lavender, (f) white, veined with lavender ; Cordelia, (s) deep lavender, (f) rich purple ; Duchesse de Nemours, blue, veined white ; flavescens, light primrose-yellow ; florentina, white, tinged with lavender, this is the species from which Orris Root is prepared ; Germania, (s) purplish-blue, (f) purple ; Gracchus, (s) lemon, (f) pale yellow, veined purple ; Hector, (s) yellow, (f) velvety-crimson ; Madame Chereau, white, edged and feathered violet, and pale blue ; Maori King, (s) rich yellow, (f) velvety-crimson; Mrs. Neubronner, yellow; Mrs. Reuthe, pale lavender; Poiteau, (s) white, tinged lavender, (f) purple, veined white ; and Standard Bearer, (s) rich rosy-purple, (f) purple, veined and shaded white. The list of varieties of this class is a very long one, and some nurserymen are continually raising new varieties. Where the standards and falls are not indicated the flowers are self-coloured. The month of March is a good time to plant the Flag Irises, as the new roots at once take possession of the soil. Dwarf Flag Iris. — Under the name of Iris pumila there is a charm- ing race of dwarf Irises that flower in early spring ; they grow only some 6 inches high, bloom profusely, and are suitable for the rock garden or as an edging to a bed of the larger kinds ; for this latter purpose if put in a double row about 4 inches apart they will soon become established. The best are : alba, white ; atroviolacea, deep purple ; coerulea, light sky blue ; cyanea, dark blue ; excelsa, yellow ; gracilis, pale greyish-blue ; and lutea, deep yellow. All of these have rhizomes like the German Iris, but they do not spread to the same extent. Spanish Iris. — This term is applied to the various forms of Iris Xiphium, and they form an exceedingly valuable race of hardy bulbs. The flowers, produced on stout, erect stems, 2 feet or so high, are of various shades of white, yellow, blue, bronze, and other tints. They are valuable for cutting, and last a long time in water if gathered just as the flowers are opening. The bulbs should be planted diuring October, preferably in sandy, well-drained loam, 4 or 5 inches deep, and the same distance apart. They may be left undisturbed for three or four years, when they ought to be hfted and replanted. Some good varieties are : Alexander Von Humboldt, rich blue ; British Queen, white ; Bronze King, bronze ; Cajanus, golden-yellow ; Excelsior, light blue, late ; Jaune, brilliant orange-yellow ; King of the Blues, deep blue ; La Reconnaissance, bronze and gold ; La 234 THE BOOK OF HARDY FLOWERS Tendresse, white and yellow ; L'Unique, dark blue and white ; Ne Plus Ultra, light blue ; Ouida, lavender-blue ; Sappho, bronzy-yellow ; Souvenir, pale blue, shaded French grey ; and Thunderbolt, bronze- yellow, purple, and brown, a striking mixture. All flower in June and early July. English Iris. — These, which are varieties of Iris xiphioides, belong to the same section as the Spanish kinds, from which they differ in the bulbs, flowers, and tufts of foliage being considerably larger ; they should be planted about 8 inches apart. English Irises are about a fortnight later in expanding than the Spanish, and are equally desirable for cutting. Some of the best are : Bleu Mourant, deep blue ; Cassandra, lavender-blue ; Duke of Portland, white, striped purple ; Grand Lilas, lilac-blue ; Lord Derby, lavender, spotted dark blue ; Madame de Beauharnais, dark blue with deeper blotches ; Mont Blanc, white ; Nimrod, very deep purple ; Perdita, lavender splashed with rose. Plant in October. Miniature Bulbous Irises. — There is a group of small Irises that bloom in January, February, and March. The flowers of most of them are most exquisitely marked, but are soon spoilt by bad weather, and for this reason are frequently protected by handlights ; they need a warm, well-drained border of sandy loam under a south wall and are planted in September. The best are : Danfordiae, yellow ; Heldreichii, light sky blue with deep blue falls ; Histrio, porcelain blue ; histrioides, bright blue ; orchioides, deep yellow ; persica, silvery-blue and violet ; reticulata, dark blue, blotched with gold, sweet-scented ; Tauri, violet-purple, deeper coloured falls marked with gold ; and Vartanii, light blue. The Japanese Iris.- — While several species of Iris are natives of Japan, the kind to which this name is generally applied is Iris laevi- gata, more often known as Iris Kaempferii. It is remarkable for the large size and varied colouring of its blossoms, which open in July, Large quantities in many varieties are annually imported from Japan during winter. They have apparently been grown in stiff clayey soil, which serves to protect the rhizomes, so that, if kept away from the boilers during the journey, they reach here in good condition. Imported sorts should be planted in March or April. In this country they need deep loamy soil with leaf-mould and cow manure mixed in ; they are moisture-loving plants and flourish by the side of water, though they need a sunny spot ; the crown — that is, the top of the rootstock — ought to be 6 inches above the water. Proximity to water is, however, not absolutely essential ; they will thrive in moist loam provided it is well tilled and manured. Many of the 7) w W CQ < Oh Q <: w a, H O g 2 o IRIS 235 varieties have six large horizontally disposed petals, forming a huge flower, in some cases nearly 12 inches across. Most of them have been raised in Japan, and the names are for the greater part transla- tions from the Japanese. A good selection is as follows : Band of Cloud, lavender, veined with white ; Blushing Empress, white, edged rose ; Cloisonne, purple ; Close of Day, royal blue ; Crane, white, veined sky blue ; Deep Blue Waters, yellow, surrounded by bright blue, shading to violet-purple ; Eastern Queen, reddish-purple ; Jewels and Flowers, mauve ground, veined deep purple ; Mikado, white, veined lilac ; Morning Mists, white, shaded lavender-blue ; Nankin, light blue ; Peace, rich royal purple ; Purple Emperor, a grand purple flower ; Rosy Dawn, claret-red ; Silver Stars, clear white with yellow blotches ; Still Waters, light purple with white veins ; Wliite Waterfall, silvery- white ; and Wedding Garment, deep blue, veined white. Other kinds of Iris. — Irises deserving of special mention are : albopurpurea, white, spotted blue, 3 feet ; aurea, golden-yellow, 4 feet ; Cengialtii, bright blue, 12 inches ; foetidissima (the Gladwyn), greenish, the capsules, which open in autumn and show the bright red seeds, are very pretty ; foetidissima aurea, a counterpart of the preceding, but with varie- gated leaves ; graminea, blue and white, 2 feet ; iberica, pearly white, veined black, falls rich brown with purple blotch, 12 inches, when dormant needs to be kept dry for a time ; Monnierii, yellow, 5 to 6 feet, needs moisture ; orientalis, white and yellow, 5 feet ; Pseuda- corus, a common British species with yellow flowers, good for water- side ; Pseudacorus variegata, striped with creamy-white ; stylosa, also known as unguicularis, lavender-blue, winter, needs to be planted at the foot of a south wall ; sibirica, of slender growth, 4 to 5 feet high, flowers blue, good for water-side. Iris Susiana is a quaint flower of great size and greyish colour, covered with dark brown markings ; must be treated like iberica , tectorum is a Japanese species, with pale blue flowers, grown in Japan on roofs in the same way as the Houseleek in this country ; and tuberosa (Snake's Head Iris), 6 inches, has green and purplish-black flowers in spring. The above kinds, unless otherwise indicated, flower in late spring and early summer. Cushion Irises. — These Irises, of which Susiana and iberica are examples, are remarkably handsome, but rather special conditions are necessary for their successful cultivation. They are somewhat tender and therefore need a sunny, sheltered position, a bed of well- drained soil, preferably raised a few inches above the ground surface. 236 THE BOOK OF HARDY FLOWERS and should be protected by means of a frame when the leaves fade. Light gritty soil is required, and it is essential that the plants are thoroughly ripened, a condition that can only ensue if they are planted in a sunny spot and covered with glass during the dormant season. November is the month advised for planting. These Irises dislike being disturbed. There are now many cross-bred forms of the Cushion Irises. Isatis (Woad). — The British species belonging to this group (Isatis tinctoria) is an interesting plant (Natural Order Cruciferae) owing to the fact that its juice was used by the ancient Britons with which to dye themselves. From an ornamental standpoint the best is Isatis glauca, from Asia Minor, This forms a freely branched herba- ceous perennial with pretty glaucous leaves, and clouds of small yellow blossoms in July and August. It will thrive in the ordinary soil of a herbaceous border, and can be readily increased from seeds sown outside in the spring. Isopyrum thalictroides. — An exceedingly pretty and distinct little plant, native of Southern Europe and belonging to the Butter- cup family (Ranunculaceae) ; it grows 9 inches high, and is well suited by loamy soil in a shady part of the rock garden. The leaves, which are disposed in a spreading tuft, are deeply cut in a manner suggestive of the fronds of a Maiden Hair Fern, while the tiny white flowers rise above them in slender, much-branched panicles in spring. Isopyrum can be increased by division or by seed sown in spring. Italian Starwort. — {See Aster Amellus.) Itea virginica, from the Eastern United States, and Itea ilici- folia, from China, are the only kinds in cultivation in this country. They belong to the Natural Order Saxifragaceae. Itea virginica is a deciduous shrub, 2 to 3 feet high, with short racemes of fragrant white flowers in July ; it may be grown in the open in loamy soil, and should be pruned moderately hard in February. Itea ilicifolia is a new evergreen bush suitable for the warmer counties or for planting against walls ; its racemes of white flowers are sometimes 9 to 12 inches long. Very little pruning is necessary. Plant in ordinarily good garden soil, and increase from cuttings in summer. Ivy. — {See Hedera.) Ivy-leaved Toadflax.— (5^^ Linaria Cymbalaria.) Ixla. — Pretty bulbous plants, belonging to the Iris family (Iridaceae) and natives of South Africa, that bear slender spikes of showy flowers on stems about 18 inches high. They are generally treated as green- house plants, but may, like many other bulbs from the same region, be successfully grown in well-drained sandy loam, in a narrow sunny IXIOLIRION 237 border, in front of a hothouse or in some similar position. The bulbs are small, and soon suffer if they are kept out of the ground too long, so should be planted in September, or early in October, and covered with 3 inches of soil. With the approach of winter the ground above them must be covered with leaves or some other protecting material. There is quite a long list of varieties, varying in colour from white to crimson and purple. Three of the very best are : crateroides, rich cerise-scarlet ; Smiling Mary, deep self pink ; and viridiflora, an exceedingly strange kind, green with black centre, very striking. Ixiolirion. — The only species in general cultivation is Ixiolirion tataricum, known sometimes as Pallasii. It belongs to the Natural Order Amaryllidaceae, and is native of Persia. It is a small bulb, which should be planted in a sheltered spot in autumn, and in the spring will produce a slender flower spike, which bears an umbel of blue or purplish-blue flowers in May or June. Once established, it will increase by self-sown seeds. Jacobaea. — {See Senecio Jacobaea.) Jacobea Lily.— (See Sprekelia formosissima.) Jacob's Ladder. — {See Polemonium caeruleum.) Jalap. — (See Ipomoea Purga.) Jamesia americana is a shrubby plant belonging to the Natural Order Saxifragaceae. It is a native of the Rocky Mountains, and forms a dense shrub 3 to 4 feet high with greyish-green, oval, deciduous leaves, and bears pretty white flowers, each about | inch across in May. As it grows freely in any good garden soil and is perfectly hardy it is available for all parts of the country, and may be planted as a specimen bush or as a group in the shrubbery. Propagation may be carried on by means of seeds, and pruning is confined to thinning out a number of the older branches after the flowers have fallen. Jasione {Sheep's Bit Scabious). — Pretty little herbaceous peren- nials, natives of Europe, and belonging to the Bellfiower family (Cam- panulaceae). They grow from 6 to 12 inches high, flower throughout summer and often into autumn. The species are Jankae with beau- tiful blue flowers freely produced from a rosette of leaves : montana, pale blue ; and perennis, having compact rosettes of foliage and light blue flowers. All of them thrive in well-drained soil in a sunny part of the rock garden, or may be planted in the chinks of a wall. Jasminum (Jasmine) is an important group of the Natural Order Oleaceae, embracing chiefly climbing plants which may be grown out-of-doors or in greenhouses, according to the countries of which they are native. The outdoor kinds thrive in loamy soil to which a little leaf-mould has been added and a compost of 2 parts fibrous 238 THE BOOK OF HARDY FLOWERS loam, I part leaf-mould or peat, and ^ part sand, is suitable for the tender sorts. Propagation in each instance may be effected by means of cuttings during spring or summer, and pruning takes the form of cutting the secondary branches back to within a bud or two of the main branches. As some bloom on old and others on young shoots, attention must be given to each plant separately. As a rule it is wise to prune as soon as the flowers fade, except in the case of those sorts which bloom during late summer, when pruning may be deferred until winter. The greenhouse Jasmines may be grown in pots or in borders and trained to pillars or rafters ; border cultivation is, as a rule, the more satisfactory. The best of the outdoor kinds are : Beesiana, a new Chinese species with pinkish flowers ; fruticans, a dwarf, bushy kind from China, with small, yellow flowers in summer, it requires little pruning ; revolutum is a variable yellow-flowered kind from the Himalaya, it flowers in summer, and the variety known as Reevesii is more vigorous than the type. Nudiflorum, a Chinese and Japanese chmber, is one of the most useful shrubs of the garden, it flowers profusely in mid-winter in most parts of the country : prune as soon as the flowers fall. Offlcinale is a white-flowered, fragrant species from Persia and North- West India, it is widely grown for its flowers in summer, and in France it is cultivated for perfumery purposes, it should be pruned during winter ; primulinum, from China, has large yellow flowers in winter, it is new to this country and suitable for warm walls. Jerusalem Sage. — {See Phlomis.) Job's Tears. — {See Coix Lachryma.) Juglans {Walnut). — Important timber trees are included in this genus (Natural Order Juglandaceae). They are found in the Caucasus, Himalaya, China, Japan, Manchuria, and North America, and the majority of those introduced are hardy in England and Ireland, whilst some may be grown as far north as Aberdeen in Scotland. They require deep loamy soil such as will grow good wheat or oak trees. As a rule, they are grown solely for ornamental purposes, or in one case for fruit, in the British Isles, but the timber of felled trees usually commands a good price. Propagation of the species is by seeds, and of the varieties by grafting upon their respective types. The best results are obtained when seeds are sown in the positions the trees are intended to occupy, but if they must be sown elsewhere, care should be taken to transplant them every second year in order that a well-developed system of fibrous roots may be procured in view of the final planting. Pruning takes the form of shaping the trees, removing the lower branches, and keeping the leading shoots clear. JUNCUS 239 The chief species are : cinerea, the Butternut of North America, a handsome tree with long, pinnate leaves, the edible nuts are 2 or 2 1 inches long, with deeply ridged shells, and the kernels are sweet and similar in taste to the Common Walnut ; cordiformis is a native of Japan and a conspicuous tree by reason of its large handsome leaves, which are often 2^ feet long, the male flower catkins are also very striking, for they are frequently more than 12 inches long ; mandshurica and Sieboldiana, the former from Manchuria and the latter from Japan, are very similar trees. Nigra, the Black Walnut of North America, is an important timber tree in the United States, whilst it might also be grown as a timber tree in this country : in the south of England it may be seen between 70 and 100 feet high, the leaves are handsome, and the timber almost black in colour, the nuts have very hard shells and small kernels. Regia is the Common Walnut, it is widely distributed from the Caucasus to the Himalaya, and is largely grown throughout Southern and Central Europe and in the United Kingdom, its value as an ornamental tree and nut bearer is well known, whilst its timber is extremely popular for the manu- facture of furniture, etc. There are several varieties, of which laciniata has finely cut leaves ; maxima, large fruits ; and monophylla, often single-lobed leaves. J uncus (Rush). — An extensive group of plants (Natural Order Juncaceae), which occur principally in wet and boggy places. They flourish by the side of water, but many other plants are more effective under similar conditions. A striking plant is Juncus effusus spiralis, in which the leaves are arranged in a peculiar corkscrew-like fashion. What is known as the Porcupine Rush, in which the leaves are banded with white after the manner of the spines of the Porcupine, is now classed as Scirpus, under the name of Scirpus lacustris zebrinus. Juniperus (Jumper). — This is an evergreen family of trees and shrubs belonging to the Natural Order Coniferae. They are found in Europe, Asia Minor, Asia from the Himalaya northwards, and in North America and the West Indies. Many are hardy and one is a native of the British Isles. They are used largely for garden decora- tion, and usually give the best results on chalky soil. The tall- growing kinds form handsome small trees, whilst the dwarfer ones are useful for planting on dry banks. The leaves are of two kinds, one being linear, flat, and sharp-pointed, and the other scale-like and pressed closely to the branch. Both kinds are often found on the same plant. Although they prefer chalky soil. Junipers thrive in moist loam, but are not adapted for planting in or about smoky towns. The species are often increased by seeds, and the varieties 240 THE BOOK OF HARDY FLOWERS by cuttings inserted in August in sandy soil in a cold and closed frame. No regular pruning is required, but a little shaping may be done now and then in summer. A selection of the chief sorts is as follows : Chinensis, a Chinese tree, which extends to the Himalaya, and is also found in Japan, though the typical kind has green leaves, there are several varieties, e.g. aurca, with golden foliage, and glauca, with bluish leaves. Com- munis, native of the British Isles, is found as a bush, 2 to 5 feet high, from the South of England to the Highlands of Scotland : there are many varieties, of which alpina aurea, aurea, and fastigiata are dis- tinct. Sabina, the Common Savin, from the mountains of Europe, is a dwarf plant up to 3 feet high, the vars. prostrata and procumbens being scarcely i foot high. Virginiana, an American kind, is interest- ing as being the tree which is most popular for the manufacture of the casings of pencils ; the wood is known as Red Cedar. There are many more species, for descriptions of which textbooks on Conifers should be consulted. Jussieua. — ^Most of these, which belong to the Evening Prim- rose family (Onagraceae), need glass protection, but Jussieua natans, a native of North America, is quite hardy. It is a bog plant, and 4 to 5 feet high, with long Willow-like foliage, which turns deep crim- son in autumn, and yellow flowers, suggestive of those of the Evening Primrose, borne in summer. Kaffir Lily. — {See Schizostylis COCCINEA.) Kalmia. — A small class of evergreen and sub-evergreen shrubs be- longing to the Heather family (Ericaceae), and native of North America. They give the most satisfactory results when planted in moist, peaty soil, but they also thrive in loam providing it contains little or no lime. They are perfectly hardy, and may be planted almost anywhere in the United Kingdom where the hardier kinds of Rhododendrons thrive. Kalmia latifolia, the Calico Bush of North America, is the most vigorous ; growing from 3 to 6 feet high, it is recognised by its large, oval, dark green. Rhododendron-like leaves and heads of white rose-tinged flowers which appear in June. It is usually in- creased by means of seeds, but seedlings grow very slowly for several years. Isolated specimens are sometimes effective objects on the outskirts of lawns. Kalmia angustifolia is sometimes called the Sheep Laurel in North America, its leaves being considered to be poisonous to sheep ; it is a very variable plant, and its numerous varieties are met with from a few inches to 3 feet in height ; the t5^e is from 2 to 3 feet high, with evergreen, ovate leaves, each about I inch long, and the rose-coloured flowers appear in May from the KAULFUSSIA AMELLOIDES 241 leaf axils about the points of the shoots. They are very showy, but the vars. rosea and rubra, dwarfer plants, are superior. Nana is of very dwarf habit. Kalmia glauca is also a showy bush with rose- coloured flowers which open in advance of those of the other species ; it may be partly evergreen or deciduous, according to the season ; the leaves are small and silvery on the under surface. It often blooms in April, and grows from i8 to 24 inches high. Propagation of the last two kinds is by division or seeds. No pruning, but the flower-heads should be removed from Kalmia latifolia when the flowers fade. Kaulfussia amelloides {Cape Aster). — This pretty little summer flowering annual, which belongs to the Daisy family (Compositae), and comes from South Africa, is invariably referred to under the above name in gardens and seed lists, though, according to botanists, it should be known as Charieis heterophylla. It reaches a height of about 6 inches, and forms a mass of light blue Daisy-like flowers, borne on slender stems in summer ; there are white and red flowered varieties. The seed is sown in a warm, sunny spot in April, and the young plants thinned to about 8 inches each way. Kerria japonica {Jew's Mallow) is a showy, golden-flowered shrub belonging to the Rose family (Rosaceae). It is a native of China, and forms a spreading bush of twiggy branches 2 to 3 feet high ; the flowers are about i inch across, and appear during April or early May. There is a double-flowered variety which is much more vigor- ous and of more erect growth than the type ; it grows from 5 to 8 feet high, and its golden flowers are from i| to 2 inches across. It was introduced long before the typical kind, and was at first called Cor- chorus japonicus. There are also varieties with silver and gold varie- gated leaves ; the double-flowered form is, however, superior to the others. Kerrias thrive in well-drained loamy soil, are easily increased by means of soft cuttings in summer, and the old shoots should be well thinned out as soon as the flowers fade. The double-flowered variety is useful for forcing in pots for the greenhouse. Kidney Vetch — {See Anthyllis.) Kitaibelia vitifolia. — A vigorous-growing herbaceous perennial, belonging to the Mallow family (Malvaceae), and native of Eastern Europe. It will reach a height of 6 to 8 feet, and the lobed leaves are of somewhat similar shape to those of a Vine. The flowers, about 3 inches in diameter, are in some cases white, in others rose-coloured. It is more fitted for the wild garden than the herbaceous border ; propagation is by division in autumn. Kniphofia {Torch Lily, Red-hot Poker). — Striking perennials, members of the Lily family (Liliaceae), and native chiefly of South Q 242 THE BOOK OF HARDY FLOWERS Africa ; they are known also as Tritoma. There are many species and a large number of garden varieties. The best of all, and one that has given rise to the best garden varieties, is Kniphofia aloides (Uvaria). The large tufts of grass-like leaves of Kniphofia are of striking appearance, and especially when crowned by the erect spikes of bright-coloured blossoms in late summer and autumn. In some districts Kniphofias are none too hardy ; wet and frost affect the centres of the plants and cause them to decay. Thus in cold or wet districts, or where the soil is heavy, it is a good plan to treat them as is sometimes done with the Pampas Grass : at the approach of winter the leaves are gathered loosely together and protected by bracken. The drawback to this method is that when the protective material is removed in early spring the plants are liable to be injured by harsh winds, so that the practice is not to be recommended if avoidable. Leaves or bracken placed above the roots and about the base of the plants prove sufficient. By the end of the season the leaves often look rather shabby and are cut off, but this is an unwise thing to do, as they afford a certain amount of protection. Deep, well-drained soil is most suitable for the Kniphofias ; it should be dug deeply, well-decayed manure being mixed in. Replanting or dividing the plants should be carried out in spring, as the roots are then active and soon take possession of the soil. The chief species are : Kniphofia aloides, the ordinary kind, orange-red, which varies somewhat, 5 feet ; Burchelli, dark red, passing to orange, 4 feet ; caulescens, a kind that forms a decided stem, clothed with broad, glaucous foliage, dusky red flowers shading to buff, 5 feet ; Macowanii, light coral-red, 2 feet ; Nelsonii, narrow spikes, yellow, 2J feet ; rufa, yellow, tinted red, in thin tapering spikes, 4 feet, rather tender ; and Tuckii, yellow and red, with stiff Yucca-like leaves, 4 feet. Good garden varieties are : Canary Bird, j^ellow, 2 feet ; Chr3's- antha, rich chrome-yellow, 3 feet ; Goldelse, thin, tapering spikes, soft yellow ; John Benary, rich orange-red, 5 feet ; Lemon Queen, lemon-yellow, 5 feet ; Nobilis, orange-red, 6 feet ; Pyramidalis, yellow and red ; Star of Baden-Baden, bronze-yellow, 6 feet ; and Triumph, yellow and scarlet, 5 feet. Kochia {Summer Cypress). — This very distinct annual, which is native of Southern Europe, and belongs to the Natural Order Cheno- podiaceae, has come very much to the front within recent years, at first under the name of scoparia, though now known as tricophj'lla. The flowers are insignificant, and the plant depends for its beauty upon the changing tints of its graceful foliage and its symmetrical AN EVENING PRIMROSE (OENOTHERA YOUNGII) KOELREUTERIA PANICULATA 243 and uniform growth. Throughout summer the foHage is of a delight- ful shade of light bright green, and the plants well deserve their popular name of Summer Cypress, but towards autumn it becomes suffused with purple, gradually deepening until it is of a purplish- crimson. The Kochia is generally used as a " dot " plant in the summer flower garden. It is best to sow seeds in a greenhouse in March, and grow the young plants there or in a frame, giving plenty of air. They will then be well established in 4-inch pots by bedding- out time, and when planted they grow quickly. Seeds may also be sown out-of-doors in April ; the resulting plants will be very effec- tive late in the season. Ordinary garden soil is suitable. Koelreuteria panicuiata is a tree with handsome foliage, belong- ing to the Natural Order Sapindaceae. It is a native of China, and quite hardy in the Midlands and South of England, where it forms a wide-headed tree up to 40 feet high. The leaves are divided into numerous segments or leaflets, and on young, vigorous specimens are 12 to 18 inches long by 9 to 12 inches wide. Towards the end of July, large terminal panicles of small yellow flowers are produced, which in sunny years are followed by inflated triangular fruits, enclosing hard black seeds. Koelreuteria bipinnata, ako from China, is of modern introduction ; its leaves are larger than those of the older kind, but it appears to be less hardy. Plant in ordinary garden soil of good quality, increase by seeds, and prune in summer to keep the plants shapely and the leaders clear. Laburnum. — A popular and important group, belonging to the Pea family (Leguminosae), which contains some of our most orna- mental trees. Three kinds are in cultivation : alpinum, a native of Europe, and often called the Scotch Laburnum ; caramanicum, a shrubby species from Asia Minor, which bears its yellow flowers in September, and is of little value ; and vulgare, the Common Laburnum, a tree found wild in various parts of Europe. In addition there are many garden varieties and a number of hybrids. The Laburnums thrive in any part of the country in ordinary garden soil, and with- stand a fair amount of exposure. The species are increased by seeds, and the varieties and hybrids by grafting upon the Scotch or Common Laburnums. When young, the trees may be pruned sufificiently to keep them shapely, but little pruning should be done to old trees, and it is a mistake to remove old branches. Although usually planted as specimen trees, the Laburnums are sometimes used as hedges and for arches. In such cases the young shoots are cut back annually. Laburnum alpinum is a tree from 15 to 40 feet high, and is distin- guished from the commoner kind by its larger and darker leaves, 244 THE BOOK OF HARDY FLOWERS better habit, and later flowering season. There are several varieties : autumnalis, which often blooms at the normal time in June and again in September ; fragrans, with more fragrant flowers than the type ; and grandiflorum, with very fine inflorescences, are the best. Laburnum vulgare grows into a somewhat similar-sized tree, but the foliage is less luxuriant, and the inflorescences, borne in May, are smaller. It also has many varieties, of which Alschingeri, Carlieri, aureum, and Jacquinianum should be grown. The kinds known as Parksii, Vossii, and Watereri are hybrids between these two species ; the first-named bears racemes up to 15 inches in length, whilst Watereri produces racemes 8 inches or more long and is very floriferous. Laburnum Adami is interesting, as it bears racemes of yellow flowers, purple flowers, and shoots, leaves, and flowers similar to those of Cytisus purpureus. It occurred in the first instance as a graft hybrid after Cytisus purpureus had been grafted upon Laburnum vulgare, and its peculiarities have been perpetuatedj It is often called the Purple Laburnum. Lactuca {Flowering Lettuce). — Perennial and annual herbs, native of Europe, and belonging to the Daisy family (Compositae). Compara- tively few are sufficiently ornamental to find a place in the garden. They are easily grown in ordinary garden soil in sun or partial shade. Increase is by division of the clumps in autumn or spring and by seeds sown on a border outside during April or May. The name Mulgedium is sometimes used instead of Lactuca for some of the kinds. The chief sorts are : alpinum (Blue Alpine Sow Thistle), which has purple-blue flower-heads in July and August, and attractive foliage, 3 feet ; Bourgaei, deep violet, July and August, 3 feet ; gigantea, pale blue, shaded pink, semi-double flowers, 2 inches across, July to September, 5 feet ; Plumieri, bright purple or blue, large graceful panicles of bloom from July to September, very striking, 6 to g feet. Lady Fern. — {See Asplenium.) Lagenaria {Bottle Gourd). — There is only one species, Lagenaria vulgaris, but there are numerous varieties or sorts differing chiefly in the size and shape of the fruits ; they belong to the Natural Order Cucurbitaceae. It is a common climbing annual in the tropics of Asia and Africa, but can be grown outside in this country in summer. Sow the seeds in pots in a cool greenhouse or frame during April, and plant the seedlings late in May or early in June in light, rich soil in a sunny position. Lagurus {Hares Tail Grass). — The only kind, Lagurus ovatus, is a hardy annual Grass (Natural Order Gramineae), of considerable value in the flower border and for cutting both in the green state LAMIUM 245 and dried for use in winter. Seeds may be sown in a cold frame in August or September, and the young plants set outside in tufts in the border in spring. A second method is to sow the seeds in a cold frame during March, or in April or May where the plants are to flower. The Hare's Tail Grass thrives in ordinary well-drained garden soil in a sunny position ; it blooms from June to September, according to when the seeds are sown, and grows about 12 inches high. Lamium {Dead Nettle). — This is not an important class, yet there are two or three plants which are worth growing. They belong to the Natural Order Labiatae, and thrive in almost any soil in sunny or partially shaded positions. Increase is by division of the roots in autumn or spring. Lamium maculatum has purple flowers from June to September, green and white foliage, grows about 6 inches high, and is native of Britain ; the var. aureum has golden-yellow leaves, and is very useful as an edging for borders and summer flower beds and as a groundwork for taller plants. An interesting hybrid is Lamium puralbum, a cross between two of our native wild plants (pur- pureum and album) ; it is a free-growing plant with shell-pink flowers. Lantana {Indian Nettle). — Tender, free-flowering shrubs, mem- bers of the Verbena family (Verbenaceae), very useful in beds and borders in summer. In gardens the species are seldom seen, those grown being forms of the South American kind, Sellowiana. Lantanas are readily propagated by cuttings inserted in pots of sandy soil on a greenhouse stage in spring or autumn. Suitable soil consists of 2 parts loam, i part leaf-mould and decayed manure, together with a sprinkling of sand. For summer bedding, cuttings are rooted in August, kept in a greenhouse during winter, and in February are potted singly in small pots ; these are put in 5-inch wide pots early in April, and planted outside about the end of May. The tops must be pinched off to induce side shoots to form. When larger plants are required they may be kept for several years in large pots, these being plunged in the beds or borders during summer. In autumn lift and store them under the stage in a cool greenhouse, or in a frost-proof shed or cellar which is not too damp. The flowers are arranged in flatfish heads and comprise a fairly wide range of colours. A few of the best sorts are : Chelsea Gem, crimson and amber ; Drap d'Or, rich yellow ; Eclat, reddish-crimson ; Golconda, pink and purple ; La Neige, pure white ; Magenta King, purple-scarlet ; Marquis de Lakorta, yellow and purple ; Raphael, yellow and maroon ; Rayon de Soleil, deep yellow ; salviaefolia (delicatissima), violet-mauve. Lapageria rosea. — A half-hardy climbing plant (Natural Order Liliaceae) from Chili ; it is grown successfully out-of-doors in the 246 THE BOOK OF HARDY FLOWERS FLOWERING SHOOT OF LAPAGERIA south and west counties on a cool wall, but in most places needs a cold greenhouse facing north. It requires well - drained soil of peat, loam, leaf- mould, and sand. Increase is by layer- ing the shoots when- ever convenient. The long wire -like shoots may grow from 12 feet to 20 feet in length. The leaves are thick and dark green. The drooping, bell-shaped flowers, of wax-like texture, are rosy-crimson, and last in good condition for some time ; the flowering season is summer and autumn. Spring is the best time to plant. Larch. — {See Larix.) Lardizabala. — The only species grown is Lardizabala biternata, an evergreen climbing shrub from Chili belonging to the Barberry family, Berberidaceae. Though usually grown in a greenhouse, it tlirives out-of-doors in mild districts. It needs well-drained compost of sandy loam and peat. The flowers are purple, not very conspicuous, in drooping racemes, and open during early winter. Increase is by cuttings inserted in sandy soil under a bell-glass, or in a frame in late summer and autumn. Larix {Larch) is an important class of Conifers (Natural Order Coniferae), for it includes those trees which are known popularly as Larches, They are found in the mountains of Central Europe, more particularly the Tyrol, the Himalaya, China, Manchuria, Siberia, Japan, and North America, and in the majority of cases they are good timber trees. The European Larch (Larix europaea) is one of the most important coniferous timbers on the Continent, and is widely grown in the British Isles. Well adapted for growing in dense woods, it forms long trunks of fairly uniform diameter, trees 12 to 15 inches in diameter at the base often measuring 4 or 5 inches at 70 feet 1 s 1 1 B 1 % Iji 1 1 i. ^jgj ^&S!« H r' ' ' H^^^^ ^1 t^ i W^ r ^, N ^L * ^ 1 1 1 i 1 P ^^iJ 1 1 j 1 1 (KS <€i.;j BLUE FLAX (LINUM PERENNE) TREE LUPIN (LUPINUS ARBOREUS) THE SHOWY JAPANESE LYSIMACHIA FALKLAND ISLAND WOOD SORREL CLETHROIDES (OXALIS ENNEAPHYLLA) LATHRAEA 247 high. This, added to the strength of the wood, makes the Larch pecuHarly useful for telegraph and other poles. The timber is, how- ever, employed for many purposes, and is very popular for fencing. Trees growing in open positions are often from 70 to 100 feet high, with trunk diameters of 2 J to 4 feet. Apart from their value as timber trees, the Larches are decorative, and few trees are more beautiful in early spring when the fresh green leaves are developing, intermixed with the young bright-pink female cones. Larches must not be planted upon low-lying or wet and heavy land, for under such conditions they often fall a prey to the Larch canker disease, which is due to a fungus, Dasyscypha calycina. On exposed hill-sides, how- ever, where the land is well drained, excellent results are usually -obtained. Decorative trees should be planted in well-drained soil. Increase is by seeds which are usually sown in spring out-of-doors; Pruning of decorative trees is limited to keeping the leaders clear and removing lower branches when necessary. The chief kinds are : europaea, 70 to 120 feet, large timber tree, European Alps ; Griffithii, native of the Eastern Himalaya, an orna- mental tree with large cones — it is, however, rather tender. Leptolepis, from Japan, is a vigorous tree, which is often planted under forest conditions ; occidentalis, native of Western North America, a very large tree in its native country, but so far has been little grown here ; it is, however, being tried as a woodland tree. Larkspur. — {See Delphinium.) Lastrea. — {See Nephrodium.) Lathraea {Toothwort). — Lathraea squamaria is a parasite on the roots of trees, especially on the Alder. It belongs to the Natural Order Orobanchaceae. It has an upright, pale rose-coloured stem 6 inches high, a few fleshy scales instead of leaves, springing from a fleshy rootstock in early spring, with dull-purple or flesh-coloured drooping flowers in spring. It is a perennial, native of Britain, and propagated by sowing seeds on the roots of the host-plant. Lathyrus {Sweet Pea, Perennial Pea). — Both the annual and Perennial Peas (Natural Order Leguminosae) are among the most beautiful of garden flowers, and the former are especially popular. During comparatively recent years the popularity of the Sweet Pea has increased by leaps and bounds, until at the present time it is more extensively grown than any other annual. To ensure an abund- ance of good flowers throughout a long season it is essential that the ground be dug quite 2 feet deep in autumn, the surface being left rough until spring. In the lower part of the trench yard manure ought to be mixed together with basic slag at the rate of 6 ounces 248 THE BOOK OF HARDY FLOWERS to the yard run ; in the upper portion bone meal, soot, hme rubble, and wood ashes are useful. A sunny position is essential for the cultivation of good Sweet Peas. Seeds may be sown in pots early in October, the pots being kept in a cold frame during winter. In warm gardens of light soil seeds may be sown out-of-doors in autumn, though when this practice is adopted some losses must be expected. Most growers sow seeds in small pots in a greenhouse or frame in January, the seedlings being grown in a cool and airy atmosphere. The Sweet Pea is hardy, and the plants, even when quite small, must be grown as hardily as possible. Further sowings may be made out-of-doors in March and early April. Seedlings raised in pots in autumn are planted out in March and will bloom in early summer ; those raised in January are planted in April, and will begin to bloom in July. Seeds sown out-of-doors are put about i inch deep ; those sown in flower pots need be covered only by ^ inch or so of soil. There should be at least a distance of 5 or 6 inches between the plants ; those who grow for exhibition often put their plants 10 inches apart. A fort- night before sowing or planting out-of-doors it is a good plan to apply to each square yard or yard run of row 3 ounces of superphosphate of lime and i| ounces of sulphate of potash, mixing these and forking them into the soil some 6 inches deep. When the plants are growing freely an occasional sprinkling of equal parts of nitrate of soda and sulphate of ammonia, ^ ounce per yard, is helpful. It is essential to stake the plants in good time, otherwise they are apt to get broken. Hazel sticks with numerous twiggy branches are chiefly used when the Peas are grown for garden display ; those who cultivate for ex- hibition often use bamboo canes, Simplicitas netting, or wire or string stretched between strong uprights. Wliether Sweet Peas are sown in rows or in circular clumps is a matter for individual choice ; they certainly look very charming in either form. Ordinarily, Sweet Peas need little attention during the summer months beyond water- ing as becomes necessary, hoeing the ground to keep the surface loose, or applying a mulch of manure, and removing dead blooms to prevent the formation of seeds which soon put an end to the blossoming. But those who endeavour to get blooms of the highest quality on long stems pursue somewhat intricate methods of cultivation. Each plant is usually restricted to one or two stems, according to the vigour of the variety (the stronger having the greater number of stems), all side shoots are carefully removed, and artificial manures are used to give size and colour to the blossoms, while, in the first place, the ground is deeply and elaborately prepared for them. Named varieties are now so numerous that it is a difficult matter LAURUS NOBILIS 249 to make a selection of the best. No two growers would probably agree in choosing a dozen sorts for the garden or for exhibition, and, moreover, new varieties appear annually. The following are good varieties : For the Garden — Clara Curtis, primrose ; Elfrida Pearson, pale pink ; Etta Dyke, white ; Lavender George Herbert, lavender ; Mrs. C. W. Breadmore, cream, pink edge ; Mrs. Cuthbertson, white and rose ; Princess Mary, lavender-blue ; Queen of Norway, purple- mauve ; Rosabelle, rose ; Scarlet Emperor, red ; Thomas Stevenson, orange-scarlet ; Zarina Spencer, orange-pink. For Exhibition — Bar- bara, orange-salmon ; Dobbie's Cream, cream ; Edith Taylor, cerise ; Elfrida Pearson, pale pink ; Hercules, pink ; King Manoel, deep maroon ; King White, white ; Maud Holmes, crimson ; R. F. Felton, lavender ; Scarlet Emperor, bright red ; Thomas Stevenson, orange- scarlet ; Wedgewood, pale blue. It is interesting to record here that the parent of the garden Sweet Pea is Lathyrus odoratus, a native of Sicily and Sardinia, and thought to have been first introduced in 1699. The Everlasting or Perennial Peas are favourite climbers for fences, screens, arbours, and porches in many gardens, and may be grown, supported by sticks, in the flower border. The plants thrive in ordinary garden soil, and are propagated by division of the clumps, preferably in spring, and by seeds sown in pots in a cold frame or out-of-doors from April to June. The best-known kind is the European Lathyrus latifolius, 6 to 8 feet high, with rose-coloured flowers from July to September ; alba and White Pearl are free-flowering white varieties ; and delicatus (Pink Beauty) has blush-pink flowers. The flowers, when cut, last well in water. Lathyrus grandiflonis, 5 to 6 feet high, has dainty crimson flowers during June and July ; it is native of South Europe. From the Orient we have Lathyrus rotundifolius, gay with its cherry-carmine flowers during May to July ; its height is from 4 to 5 feet. Laurel. — {See Prunus.) Laurus nobilis is the Bay Laurel, or Sweet Bay, of our gardens (Natural Order Lauraceae). It is a native of the Mediterranean region, and although fairly hardy in the British Isles, is sometimes injured by frost, and only attains its finest proportions in the milder counties. It is usually seen as a large bush 12 to 20 feet high, though sometimes it assumes a tree-like habit, and in South Wales has grown upwards of 40 feet in height. Male and female flowers are borne on different trees, the latter being followed by round black plum- like fruits ^ inch in diameter. It is, however, on account of its fragrant, evergreen foliage that this shrub is grown. The var. angusti- 250 THE BOOK OF HARDY FLOWERS folia has smaller and narrower leaves than the type, whilst undulata is similar to the last-named except that the margins of the leaves are prettily undulated. Plant in ordinary garden soil, increase by cuttings inserted in a cold frame in July or August, and prune during summer to keep the plants shapely. Laurustinus. — {See Viburnum.) Lavandula {Lavender). — The " Sweet-blooming Lavender " (Natural Order Labiatae) is known to every flower lover. As a neat shrubby bush clothed with grey foliage it is ornamental at all seasons, while in summer the spikes of fragrant flowers are de- lightful. A dry day in August is the best time to gather these ; tie them in small bunches, and hang in a cool, dry place to dry for a few weeks before using. Lavender bushes must have a sunny posi- tion and thrive in most soils, preferring that which is light and sandy. Seeds can be sown in a cool greenhouse or frame from April to June, but cuttings form the most popular method of propagation. In October cottagers pull off a few of the side growths with a piece of old stem attached and plant them in the border i foot apart. Another way is to prepare cuttings about 3 inches long in the ordinary way and dibble them in a cold frame or under a handlight in sandy soil during September and October. There are several varieties of Lavender. The typical kind, Lavan- dula vera, grows wild in the Mediterranean region ; old bushes of this, some 4 feet in height, are fairly common in gardens, but, as a rule, young plants ought to be put in every four or five years and the old bushes discarded. Lavender makes a good dwarf hedge, and should be chpped after the flowers are over. The Dutch Lavender is a dwarf variety 12 inches high ; Munstead Variety is a free-flowering sort with long violet-blue spikes ; Bowles' Early is dwarf and early flowering, with purple-blue spikes ; Old Wliite, or alba, a white- flowered sort, is worth growing as a novelty. Lavatera {Mallow). — Annual and shrubby perennials (Natural Order Malvaceae), thriving in ordinary garden soil. Though of peren- nial character, the shrubby kinds are best treated as biennials, except in the warmer parts of the country, where in time they develop into large bushes. Lavatera arborea (the Tree Mallow), 6 to 10 feet high, has large handsome leaves, and is sometimes used in summer bedding ; the purple flowers open from July to September ; it is native of Europe, including some parts of our sea coast. As a decorative garden plant, the var. variegata, of which the leaves are mottled with creamy-white, is more showy ; it is used for summer bedding. Lavatera cashmiriana, native of the Himalaya, 4 to 6 feet high, bears H jglSM ■H^ff i?^ S i». "^JjS^r?^^^! ^^^hSp ^1 s ^Rhb^^B3|^B^ l?C-S8 9 i IP ^ 1 i ^fal ^M R '^ PI ? fe k. -^^Mj^Rbk^ 1 o O 2 LAYIA 251 pale rose flowers in summer ; while Olbia, 4 to 6 feet, has rose-pink blossoms from June to August — it is wild in Southern Europe. These shrubby Mallows are raised from seed sown in a cold frame during July, and except in the warmer counties need the protection of a cold frame during the winter ; those used for summer bedding are also grown from seeds sown in a warm greenhouse in February. The Annual Mallows are very showy plants, about 3 feet high, and thrive best in rich garden soil. Seeds may be sown under glass in March, but as seedling Mallows do not transplant readily, it is better to sow thinly, in April out-of-doors, where the plants are to flower. They are free-growing, and must not be crowded ; a space of from I foot or even 2 feet in good soil is none too much to leave between them. Lavatera trimestris is a native of the Mediterranean region ; the best varieties are : rosea splendens, rosy-pink ; alba splendens, white ; and Loveliness, rosy-red. Lavender. — {See Lavandula.) Layia. — Only one kind, Layia elegans, is grown to any extent. This is a hardy annual, about i foot high, and has large yellow Daisy- like blooms in summer, prettily edged with white. It belongs to the Daisy family (Compositae). The var. alba has white flowers. These plants prefer light, well-drained soil, and last in flower throughout the summer ; they are attractive as an edging to a large bed or in groups along the front of a sunny flower border. Seeds are sown late in March or early in April out-of-doors where the plants are to flower. Ledum. — Three kinds of Ledum are in cultivation, all being per- fectly hardy throughout the British Isles ; they belong to the Heather family (Ericaceae). They are Ledum glandulosum, from the moun- tains of California, British Columbia, and Alaska ; latifolium, from North America, which is sometimes spoken of as Labrador Tea ; and palustre, a native of the northern and arctic regions. They form com- pact bushes several feet across, and from 6 inches to 2 feet high (the latter height being rare), with small evergreen leaves, which are often covered with a dense mass of felty hairs on the under surface and are pungent when bruised. The white flowers are borne freely in dense, flattened heads during late spring and early summer. As is the case with most other plants allied to Heather, they object to soil containing hme, and show a preference for sandy peat and a moist situation. Propagation is often effected by means of layers, but more vigorous and generally healthier plants are those which have been raised from seeds. Such plants, however, grow very slowly for several years. The Ledums may have a position in the front of the shrubbery, or with the Heaths. Pruning is unnecessary. 252 THE BOOK OF HARDY FLOWERS Leiophyilum buxifolium (Sand Myrtle) is a charming little shrub from the mountains of New Jersey, Carolina, Florida, etc., belonging to the Heather family (Ericaceae). It is known under the common name of Sand Myrtle, and has been called various botanical names, including Ammyrsine buxifolia and Ledum buxifolium. Of compact habit, it grows from 6 to 12 inches high, bearing small dark green Box-like leaves, and in May a profusion of small white pink- tinged flowers in close-packed heads. At flowering time little can be seen of the leaves. Soil which will do for Heaths or Rhododen- drons suits quite well for this plant. Propagation is often effected by layers or division of old clumps, but better plants are produced from cuttings or seeds. Pruning is unnecessary. The var. pros- tratum is even dwarfer than the typical kind, and may be planted in the rock garden. Lemna (Duckweed). — Herbaceous annual floating plants (Natural Order Lemnaceae) without stem or leaf, and bearing inconspicuous flowers. On the approach of cold weather the plants sink to the bottom of the pond or lake ; they are common on stagnant water. The Duckweeds increase very rapidly by buds, rapidly forming large floating masses on the surface in warm weather. Lent Lily. — {See Narcissus.) Leontopodium {Edelweiss). — The Swiss Edelweiss, Lepntopodium alpinum (Natural Order Compositae), is the most talked-of alpine plant. Countless accidents have resulted from endeavours to collect it in its native Alps. It is not, as a rule, successful in gardens in smoky districts, but in pure country air it thrives excellently on an exposed rockery in well-drained stony soil and a sunny position. Increase is by division in spring and by seeds sown during spring or summer in well-drained pans of sandy soil, Leontopodium alpinum has small yellow flowers enveloped in white, woolly leaf-like bracts and grey leaves ; it is about 6 inches high, and at its best in June and July. There are several so-called varieties, which are really geographical variations, namely, altaicum, from Russia; himalayanum, Himalaya ; sibiricum, Siberia ; and transylvanicum, from Austria. Leptosiphon. — In some botanical lists Leptosiphon (Natural Order Polemoniaceae) is merged in Gilia, but for garden purposes it is distinct, and the name Leptosiphon is used. All varieties are annuals thriving in ordinary garden soil ; they are useful in the rock garden and as an edging to beds and borders. The seeds are sown outside during August for early flowering, and in April where the plants are to bloom in summer and autumn. The chief sorts are : andro- saceus, lilac-purple, 6 to g inches, California ; aureus, golden-yellow. LEPTOSYNE 253 compact, 3 to 6 inches ; hybridus, a mixed strain, including numerous shades of colour, 3 to 6 inches ; and roseus, delicate rose, 3 to 6 inches. Snow-white is a pure white variety, 3 or 4 inches high, one of the best for an edging. Leptosyne. — Californian annuals and perennials (Natural Order Compositae) with Coreopsis-hke flowers, very useful for cutting, and of value in the garden. Leptosyne Stillmanni, golden-yellow, 18 inches high, blooms throughout the summer ; from seed sown outside in April, the plants flower in five or six weeks ; an excellent annual for beds and groups in the border. Leptosyne maritima, 2 feet, has large bright yellow flowers in late summer and autumn ; this kind is rather tender in some districts, seed being sown in June, and the plants kept in a frame during winter ; or it may be raised in a heated greenhouse in early spring for planting out-of-doors in May. Rather light soil and a sunny position suit these plants. Lespedeza. — Only one species, Lespedeza bicolor, is much grown in gardens ; this is a shrubby plant belonging to the Pea family (Leguminosae), 4 feet or more high, native of North China and Japan. The small. Pea-like, rosy-purple flowers are freely produced in large terminal panicles in autumn, while the pinnate leaflets add to the beauty of the plants. The annual growths should be cut down to the ground each year in February or March. Ordinary light garden soil is suitable, and increase is by division of the rootstocks in spring or by seeds sown in a cool greenhouse or frame from March to June. This plant is not suitable for cold districts. Leucojum (Snow/lake). — A small group of bulbous plants (Natural Order Amaryllidaceae) with leaves resembling those of the Daffodil, and large fragrant Snowdrop-like flowers. They succeed in light loamy soil, and when once planted should be left undisturbed for some years. They are suitable for the rockery, wild garden, and open woodland. September and October are the best months in which to plant the early flowering kinds ; while Leucojum autumnale is planted in spring. Increase is by offsets, which may be lifted and divided at the times recommended for planting. The bulbs should be covered with 3 or 4 inches of soil. The chief kinds are : aestivum (Summer Snowflake), white, tipped with green, several flowers on a stem. May and June, 18 inches, native of Southern and Central Europe, including Britain ; autumnale, white, tinted with rose, September, 4 to 6 inches high, Mediterranean region ; pul- chellum (syn. Hernandezii), white. May, 18 inches, from the Balearic Isles ; and vernum, the Spring Snowflake, white green-tipped flowers in April, native of Southern Europe. 254 THE BOOK OF HARDY FLOWERS Leucophyta. — Only one species is commonly grown, Leucophyta (syn. Calocephalus) Brownii, an Australian shrubby plant with attractive, silvery-grey stems and leaves ; it belongs to the Daisy family (Compositae). It is a favourite plant for summer bedding. Propagation is by cuttings inserted in pots of sandy soil during August ; the plants are often kept for several years, as they grow slowly. During winter both these and the rooted cuttings must be kept on a shelf in the greenhouse, giving httle water ; they are planted out in May or early June, and brought under glass again at the end of September. The plants reach a height of 2 feet or more in time. Leucothoe Catesbaei is the best-known plant in this group, which is a member of the Heather family (Ericaceae). It is an ever- green shrub from the South-East United States, and often grows about 2 feet high, but under good conditions it sometimes attains a height of between 3 and 4 feet. The branches are arching and clothed with ovate, long-pointed leaves 3 to 4 inches long ; the white flowers appear in axillary, pendent racemes, 2 to 3 inches long, in May and June. This is a peat-loving shrub, but can be grown in loam if lime is not present, and gives the best results under conditions favourable to Heaths and Rhododendrons. It increases by stems from the rootstock, and these are sometimes detached and used for propagation, but seedlings form the most vigorous plants. A few old branches may be thinned out each year after the flowers have fallen. A second kind is Leucothoe axillaris, which is also found in the South-East United States. Lewisia. — Californian rockery plants, belonging to the Natural Order Portulacaceae, of considerable beauty and interest. They have fleshy leaves and richly coloured flowers in summer and autumn. A sunny position and a well-drained soil are essential, for while the plants delight in moisture in summer, it is harmful in winter ; a compost of sandy loam, peat, and small pieces of stone is suitable. Increase is by seeds sown in slight warmth under glass in spring, and by division of the roots during March. The chief kinds obtainable are : Cotyledon, rosy-pink, leaves in a rosette ; Howellii, rosy-pink, in long, graceful panicles, thick leathery leaves ; Tweedyi, soft salmon-rose, thick leaves in a rosette ; oppositifolia, pure white, on slender stems, linear leaves, and rediviva, satiny-rose, dark green succulent leaves. Leycesteria formosa {Pheasant Berry). — A vigorous-growing shrub from the temperate Himalaya, belonging to the Honeysuckle family (Caprifoliaceae). It has several attractions, for some people cultivate it in large groups for the sake of its bright green bark in <'\< ■'A' rJ^ THE MARTAGON LILY ^LILIUM MARTAGON) THE WHITE TRUMPET LILY (LILIUM LONGIFLORUM) THE NANKEEN LILY (LILIUM TESTACEUM) THE ORANGE LILY (LILIUM CROCEUM) LIATRIS 255 winter-time, while others prefer its showy inflorescences of creamy- white flowers, which appear amongst prominent dark-red bracts during several weeks in summer ; the bracts are persistent and set off the bright black fruits at a later date. It is better adapted to the warmer than the colder parts of the country, though it is usually only the ends of the branches which suffer from cold. Any good garden soil suits. Propagation is by cuttings or seeds, and pruning depends largely upon the object for which the bushes are grown. Those grown for their bark are cut down each spring, whilst bushes are thinned at the same time. Li air is. — Handsome border perennials, natives of North America, thriving in rich, well-drained, light soil ; they are members of the Daisy family (Compositae). Increase is by division of the fleshy roots in spring and by seeds sown in a cold frame as soon as ripe or in spring. Plant in a sunny open border. Liatris graminifolia bears spikes of rosy-pink flowers in August and September, 2 to 3 feet, (the var. dubia has slender stems, thickly furnished with rosy-purple flowers) ; pycnostachya (Kansas Grey Feather) is crimson-purple, 4 feet, one of our best autumn border plants ; punctata has rosy- pink blooms in August and September, 12 inches ; scariosa, bears dark purple flowers in September, 2 to 3 feet ; spicata, rosy-crimson, 2 feet, blooms in September and October. Libert! a {New Zealand Satin Flower). — The Libertias, which belong to the Iris family (Iridaceae), have grass-like foliage and beautiful spikes of white flowers. As they are natives chiefly of New Zealand, it is desirable to plant in rather a sheltered position in a well-drained compost of sandy loam and peat. Propagation is by careful division of the clumps in spring, and by seeds sown as soon as ripe in early autumn in a cold frame. Even when the plants are not in flower the evergreen grass-like leaves are attractive. The three most useful species for outdoor cultivation are : formosa, spikes of large white flowers, May, 2 to 2| feet. Chili ; grandiflora, pure white in spike-like panicles, June, July, 2| to 3 feet. New Zealand ; and ixioides, white, yellow stamens, June and July, 2 to 3 feet. New Zealand. Libocedrus. — This is a group of evergreen trees belonging to the Natural Order Coniferae. Four species are grown : chilensis, from the Chilian Andes ; decurrens, from Western North America (Oregon to South California) ; macrolepis, a new kind from China ; and Doniana, from New Zealand. Libocedrus decurrens is the most useful tree, the others being better adapted for the milder counties. It may be grown almost anywhere, where cool, moist soil and moist 256 THE BOOK OF HARDY FLOWERS and pure atmospheric conditions prevail. Under such conditions it forms a tall, upright column of dense branches clothed with dark green leaves, specimens 50 feet high being often less than 15 feet wide and always imposing. Increase is by seeds, and pruning is unnecessary. Ligulapia.— (S^g Senecio.) Ligustrum (Privet). — The indiscriminate way in which various kinds of Privet have been planted has brought some discredit upon these shrubs, yet among them are many useful kinds, and even those that have been planted most widely have certain qualifications lacking in many other shrubs. They belong to the Natural Order Oleaceae. Ligustrum ovalifolium grows quite well beneath the shade of trees, whilst there are few cheaper or more rapid-growing hedge plants. It is, however, a " gross feeding " shrub, and soon impoverishes the ground if the roots are not cut well back once a year. It is a native of Japan, whilst various other kinds are found in the same country, China, and Europe. They are increased by cuttings, the hardier kinds placed out-of-doors in autumn and others in sandy soil under glass in summer. When outgrowing their positions they may be pruned vigorously during April, whilst hedges should be clipped several times between May and September if they are to be kept compact and neat. The following are the chief kinds : Delavayi, a graceful Chinese Privet of recent introduction, with small, evergreen, oval leaves and good-sized inflorescences of showy white flowers, suitable for the southern counties ; japonicum, from China and Japan, is a useful evergreen bush with bold handsome leaves, growing from 3 to 5 feet high, and bears upright panicles of white flowers during summer — coriaceum and involutum are compact varieties of rather stunted growth ; lucidum is a vigorous and useful evergreen from China, growing from 12 to 20 feet high and blooming freely ; ovalifolium, already alluded to, is widely grown for hedges, and its golden-leaved var. aureum is a showy and largely grown shrub, being a great favourite with owners of small gardens. Ligustrum sinense, from China, is a large bush or small tree up to 20 or 25 feet high ; its light green leaves are sub-evergreen, or sometimes quite evergreen, and the white flowers are succeeded by clusters of small black fruits ; massalongianum and strongylophyllum are of neat growth and suitable for the southern counties ; vulgare, the common British kind, is planted beneath trees, and is also used for hedges. Lilac. — (See Syringa.) LILIUM 257 Lilium (Lily). — The Lilies (Natural Order Liliaceae) are the most beautiful of all hardy bulbous plants ; they vary in height from a few inches to 10 or even 12 feet, while the blooms are remarkably diverse in shape and rich in colour, and open throughout a long season, from May to October. A few amateurs make the Lily family their special hobby, and are able to cultivate some sixty species and varieties in various soils and positions. Some kinds grow freely in full sun in ordinary border soil, while others require some shade and special soil. The usual method of increasing Lilies is by offsets taken off at the seasons recommended for planting. Home-grown bulbs are best planted during October and November ; bulbs imported from Japan and elsewhere in February and March. The most important exceptions to this rule are candidum and testaceum, which should be planted during August or early September. So far as concerns the depth at which to plant Lily bulbs, they naturally divide into two groups, namely, those that root from below the bulb only and those that root from the base of the stem as well as from the bulb ; the former are covered with about 3 inches and the latter with 5 or 6 inches of soil. Some Lilies are readily raised from seeds, and flower in from two to five years from sowing. Several kinds produce bulbils on the stems, which form a ready means of increase, notably tigrinum, sul- phureum, and bulbiferum. Others must be propagated by means of the scales that go to form the bulb ; they are broken off carefully, laid on pans of light soil, and covered with a sprinkling of sand ; young bulbs grow from the bases of the scales. Notes with regard to the soil and position best suited to individual kinds are given in the following pages. Lilies which prefer partial shade and a peaty, leafy compost, may be grown in association with hardy ferns. A few of the dwarf sorts are useful for planting in the rock garden. Lilium auratum, the Golden-rayed Lily of Japan, has large, fragrant flowers, white, marked with yellow and purple, in August ; it needs a compost of peat, leaf-mould, and sandy loam, and the bulbs should be covered with 6 inches of soil. It grows from 4 to 6 feet high, and prefers partial shade ; the plants are not usually long-lived. A few fine varieties are rubro-vittatum, macranthum, and Wittei. Lilium Brownii, a Chinese Lily, bears trumpet-shaped blooms, white inside and purple-brown outside, in July ; it thrives in peat, leaf-mould, and sandy loam, in a sunny or partially shaded spot, the bulbs being planted 5 or 6 inches deep ; it grows about 3 feet high. Lilium bulbiferum, with orange-red flowers in May and June, grows in ordinary border soil in a sunny spot ; it is from 3 to 4 feet high, and comes R 258 THE BOOK OF HARDY FLOWERS from Central Europe. Lilium candidum (Madonna Lily), having pure white flowers in June, thrives in any ordinary border soil, preferably containing lime. It requires a sunny position, and should be planted in August, the bulbs being covered with 2 or 3 inches of soil. It at- tains a height of from 3 to 5 feet, and is a native of Southern Europe. Lilium chalcedonicum (Scarlet Turk's Cap), a native of Greece, will grow in ordinary ground in a sunny border, and should be covered with 2 or 3 inches of soil. It grows 3 to 4 feet high, and bears rich wax-red flowers in July. Lilium concolor, from China and Japan, bears orange-red blooms in July ; it thrives best in peat in a some- what shady spot in the rock garden, and should be planted 3 inches deep ; its height is from 12 to 18 inches. The var. Coridion has rich 5^ellow blooms. Lilium croceum (Orange Lily), native of Southern Europe, bears orange-red flowers in the latter part of June and through- out July. It grows from 3 to 5 feet high, and should be planted 5 inches deep. Lilium davoiricum or umbellatum (Dahurian Lily) grows from 2 to 3 feet high, and will thrive in ordinary soil in a sunny border ; its orange-red upright flowers are in terminal clusters. The bulbs should be planted at a depth of 5 to 6 inches. This Lily is native of Siberia and has numerous varieties, mostly of Dutch origin. Auran- tiacum, multiflorum, erectum, Cloth of Gold, Incomparable, Sappho, and Tottenhami are some of the most distinct, and all are easily grown. Lilium elegans (Thunbergianum) is a Japanese Lily, possessing numerous varieties that will thrive in the open border in light garden soil. They vary in height from 6 to 36 inches, and flower in June, July, and August, the colours ranging from yellow to rich crimson. The bulbs should be planted 4 inches deep. The following bloom in June and July : Prince of Orange, atrosanguineum superbum, bicolor, Orange Queen, Othello, Peter Barr, sanguineum, Van Houttei, and Willie Barr. The best August flowering ones are Batemanniae, venustum, and Wallacei. Lilium giganteum, a remarkable Himalayan Lily, forms a tuft of unusually large leaves and produces a thick flowering stem that may reach a height of 10 feet ; the immense tube-shaped blooms, which are white with green tinge and shaded with purple inside, open in July and August. This Lily needs a sheltered, partially shaded spot and deep soil consisting of loam, leaf-mould, peat, and sand. The bulb dies after flowering, though offsets are produced which may be used to increase the stock. If small bulbs are planted they take several years to reach flowering size ; larger ones may be expected to bloom in one or two years. The bulbs ought to be covered with 4 or 5 inches of soil. LILIUM 259 Lilium Hansoni, from Japan, bears yellow flowers, marked with brown spots, in June, and should be planted 4 to 5 inches deep, in ordinary border soil in sun or partial shade. Its average height is from 3 to 4 feet. Lilium Henryi, a handsome Chinese Lily, bears orange-yellow flowers in August and September. It grows from 5 to 8 feet high in ordinary border soil, and likes partial shade ; the bulbs should be planted 6 to 8 inches deep. Lilium longiflorum (Trumpet Lily), native of Japan, grows from 2 to 3 feet high, and may be planted 4 to 5 inches deep in ordinary, light border soil, to which a little peat and leaf-mould have been added. Lilium Martagon (Turk's Cap Lily), from Central and Southern Europe, bears reddish-purple blooms in June and July. It needs merely ordinary soil in a half-shady position, and grows from 3 to 5 feet high. The bulbs must be covered with 3 inches of soil. The var. album is a lovely white border Lily. Lilium monadelphum Szovitzianum (colchicum), having citron yellow blossoms in May and June, grows well in ordinary border soil in a sunny position, the bulbs being planted 3 or 4 inches deep. It grows from 4 to 6 feet high and is native of Caucasus and North Persia. Lilium pardalinum (Panther Lily), from California, with yellow blooms, shaded with orange and red, in July and August, needs a deep soil consisting chiefly of leaf-mould and peat, and requires shade from the midday sun. It grows from 5 to 8 feet high, and the bulbs should be covered with 3 inches of soil. Lilium pomponium, a Lily from Lombardy, growing 3 to 4 feet high, bears flowers of sealing-wax red shade, in June ; the bulbs should be planted 4 inches deep in ordinary soil in a sunny border. Lilium pyrenaicum, whose home is in the Pyrenees, will grow in ordinary soil in either sun or shade. It reaches a height of 3 feet, in its flowering season in May and June, when it bears greenish-yellow blooms marked with dark spots. It should be planted 2 to 3 inches deep. Lilium speciosum (lancifolium), a popular Japanese kind, thrives in ordinary soil to which a little peat and leaf-mould have been added, in sun or partial shade. It grows some 3 to 5 feet high, and has numerous varieties, varying from rosy red, through pink to white. Its flowering season is during late summer and autumn. A few distinct sorts are : album Kraetzeri, magnificum, Melpomene, punc- tatum, roseum, and rubrum. The bulbs should be covered with 4 or 5 inches of soil. Lilium sulphureum, a Burmese Lily, bears in September and October very large trumpet-shaped flowers, sulphur- coloured, with brownish shading outside. It grows from 5 to 7 feet 260 THE BOOK OF HARDY FLOWERS high in ordinary, well-drained border soil in a sunny spot. The bulbs should be planted 6 to 8 inches deep. Lilium superbum, native of the United States, grows about 5 to 7 feet high, and the bulbs need planting 4 inches deep in a soil made up of sandy loam, peat, and leaf-mould in a somewhat shady position. The graceful reflexed flowers, which are at their best in July and August, have an orange yellow centre shading to reddish-crimson, and are prettily spotted. Lilium tenuifolium is a graceful Siberian Lily, from 12 to 18 inches high, with narrow leaves, slender stems, and waxy-scarlet blooms in May and June ; it requires light loamy soil to which leaf -mould has been added. The bulbs must be covered with 2 inches of soil, and are preferably planted in a sheltered position in the rock garden: Lilium testaceum (Nankeen Lily) (also known as isabellinum and excelsum) bears fragrant citron-yellow blossoms in June and July, on stems 4 to 5 feet high. This kind is supposed to be a hybrid between candidum and chalcedonicum. It thrives in ordinary border soil in a sunny place, and the bulbs should be covered with 3 inches of soil, planting being done in August. Lilium tigrinum (Tiger Lily), from China and Japan, bears orange- red, black-spotted flowers, with refiexing segments in August and September. It grows about 3 to 5 feet high, and thrives in ordinary soil in a sunny border. The bulbs should be covered with 4 or 5 inches of soil. There are several varieties : Fortunei, with woolly stem, flowers somewhat later than the typical kind ; giganteum, has rich orange-scarlet flowers ; fiore pleno has double blooms ; and pseudo- tigrinum CMaximowiczii) is a late-flowering (October) variety without bulbils in the axils of the leaves; Lily of the Valley. — (See Convallaria.) Lime Tree. — {See TiLiA.) Limnanthemum peltatum (Fringed Buck Bean). — Though wild in Britain, this is a beautiful water plant ; it belongs to the Gen- tian family (Gentianaceae), and is sometimes known as Villarsia nymphaeoides. The roundish leaves float on the surface of the water freely, and in summer and early autumn the fringed yellow blossoms are very attractive. The Buck Bean thrives in shallow water where the roots can reach the mud ; if planted by a muddy bank it will gradually spread out into the water. Propagation is very easy by division, while seeds may be collected when ripe, and sown in mud along the water's edge. Though a pretty plant, it increases rapidly under congenial conditions, and is apt to encroach on choicer kinds; Limnanthes. — The only species grown in gardens is Limnanthes Douglasii, a hardy annual, native of North-West America, and LINARIA 261 member of the Geranium family (Geraniaceae). It thrives freely in ordinary soil and is one of the best dwarf annuals for aatumn sowing. Sow seeds in autumn or spring where the plants are to flower. Self- sown seedlings may often be found. It grows 6 inches high, is of spreading growth, and bears fragrant yellow flowers edged with white. Linaria {Toadflax). — Annual and perennial plants, of dainty character, belonging to the Snapdragon family (Scrophulariaceae) ; valuable in the rock garden and border. Propagation of the peren- nial kinds is by cuttings inserted in a cold frame during August and September in pots of light sandy soil, by division of the clumps in March, or by seeds sown in a frame during April or May. The annual Toadflaxes should be sown during April where they are to flower. Well-drained, rather light soil suits the Toadflaxes best. The chief perennials are : alpina, purple and orange, a charming trailing plant for the rock garden and old walls, flowers freely from June to September and sows itself, native of Europe (there are white, alba, and rose-coloured, rosea, varieties) ; Cymbalaria (Kenilworth Ivy or Ivy-leaved Toadflax) bears lilac-blue flowers freely from May to September ; though a British wild plant, this is pretty in the rock garden and on old walls (the vars. alba and rosea are attractive). Dalmatica (syn. macedonica) has blossoms with orange-yellow lip, from June to August, a valuable border plant, 3 to 4 feet high, native of Dalmatia ; genistifoha is a showy border kind with light yellow flowers from June to September and pretty glaucous foliage, 4 feet, Europe and Asia Minor ; hepaticaefolia, a dainty trailing alpine for the rockery and old walls, with lilac blossoms, from June to August, Corsica ; origanifolia, violet flowers, orange throat, June to September, 4 inches, rockery. South Europe. Linaria pallida, bearing violet flowers from June to August, is only 3 inches high and suitable for the rockery or edge of the bog garden, Italy ; purpurea bears maroon-purple blossoms on slender, graceful stems in July and August, it has glaucous leaves and grows about 3 feet high, Europe ; vulgaris Peloria is a curious form of our Wild Toadflax, 2 feet high, with pale yellow and orange blooms in July and August. The chief annual Toadflaxes are bipartita, lilac-purple and yellow, 12 inches. North Africa ; maroccana White Pearl, a beautiful Toad- flax with white flowers, 12 inches (the var. Yellow Prince has yellow flowers) ; reticulata aureo-purpurea, purple-crimson and orange, 9 inches. Lindelofia {Himalayan Hound's Tongue). — One species and two varieties of this blue-flowered perennial are grown in a few gardens. 262 THE BOOK OF HARDY FLOWERS They belong to the Borage family (Boraginaceae). Ordinary well- drained border soil and a sunny position supply their needs. Pro- pagation is by division in autumn or spring, and by seeds sown under glass in spring or out-of-doors during April and May. Lindelofia spectabilis bears purple or violet-blue blooms from June to August, i8 inches, Himalaya ; the var. afghanica, deep purple, is summer blooming ; and praecox has bright blue flowers from April onwards. Lindera. — This is a group of shrubs belonging to the Natural Order Lauraceae, their near relative in the outdoor garden being the Sweet Bay (Laurus nobilis). Although of no special decorative value, their fragrant leaves make them interesting, wnilst the small golden flowers of some kinds are produced with sufficient freedom to render the plants attractive. Plant in light loamy soil or in loam containing a little peat. Increase is by seeds or cuttings, and pruning is carried out in summer merely to keep the bushes shapely. A few good kinds are : Benzoin, the Spice Bush or Benjamin Bush of the United States ; and glauca, hypoglauca, and triloba, from Japan; Linnaea {Twin Flower). — Linnaea borealis, the only species, is a trailing or creeping evergreen shrub belonging to the Honeysuckle family (Caprifoliaceae), native of Britain and other countries. This dainty little plant needs a rather shady position and peaty soil. The flesh-coloured, fragrant, pendulous flowers are in pairs, and open from May to July. It is propagated readily by division in autumn or spring, and by cuttings inserted in pots of sandy peat in a frame during August and September. Linum (Flax).— H.a.vdy perennial and annual plants (Natural Order Linaceae) notable for their graceful growth and free-flowering. They should be grown in a sunny position in rather light, well-drained soil. Some are suitable for the rock garden, others for the border. Seed forms a ready means of increasing both perennial and annual Flaxes, and is generally the most satisfactory method of propagation, as these plants dislike being disturbed. A few, notably arboreum, are increased by cuttings inserted in sandy soil in a cold frame during August ; while perenne is easily raised by division of the roots in spring; Sow seeds of the perennials out-of-doors during April and May, and the annuals in April where the plants are to flower. The annual sorts are : grandiflorum, brilliant red, 12 inches, summer, native of Algeria (var. rubrum, which is of richer colour, is generally grown) ; usitatissimum (Common Flax), pale blue, 18 inches to 3 feet, July and August, found wild in Europe. The most showy perennials are alpinum, blue, trailing, 4 to 6 inches, June to August, suitable for the rock garden, native of Europe, etc. ; ' ■ ''v? T < w w W Q W CO 2 u < a, oi w Q Pi o CQ O g S w o w w fa I LIPPIA CITRIODORA 263 arboreum, lemon- yellow, 12 inches, a showy shrubby kind, best planted in the rock garden, native of Crete ; austriacum, pale blue, 12 inches to 2 feet, June and July, Europe ; flavum, golden-yellow, 12 inches, June to September, Southern Europe, very effective in the rock garden ; monogynum, white, 18 inches, June to August, New Zealand ; nar- bonense, blue, 18 inches to 2 feet, June to August, Southern Europe ; perenne, pale blue, the most popular and easily grown perennial Flax, 12 to 18 inches, June to August, northern temperate regions ; perenne album is a pretty white variety. Lippia citriodora {Scented Verbena). — A popular shrub on account of its lemon-scented leaves ; it belongs to the Natural Order Ver- benaceae. It is native of South America, and is not generally hardy in the British Isles, although it might profitably be planted in more gardens, especially if placed at the foot of a warm wall. It thrives and makes a good-sized bush in the south and west counties and on the west coast of Scotland. Bushes 3 or 4 feet high have even been known to grow for many years in Essex gardens. It is also grown as a greenhouse and as a room plant. Cuttings may be rooted in sandy soil during spring and summer, and it thrives in ordinary garden soil. Cut the longer branches back in spring in order to keep the plants shapely. Liquidambar {Siveet Gum Tree).- — Three kinds, all trees, have been introduced : formosana, from China and Japan ; orientalis, from Asia Minor ; and styraciflua, from the United States. They are members of the Witch Hazel family (Hamamelidaceae). The last- named is the only one of any value in the British Isles, where it grows from 50 to 80 feet high, and is distinguished by silvery bark, glossy Sycamore-like leaves, and Plane-like fruits. Its chief asset is the rich autumnal colouring of the leaves, and at that season it is one of the showiest trees in the garden. It is known as the Sweet Gum Tree in America, and it is there valuable on account of its timber, which has a wide use for cabinet work, etc., being used under the names of Red Gum, Yellow Gum, and Satin Walnut. The last name is usually applied to the wood in this country. This tree is raised from seeds or layers, may be planted in ordinary garden soil, and should be pruned in summer to keep the trees shapely whilst young. Liriodendron Tuliplfera {Tulip Tree). — ^This was for long con- sidered to be the only representative, but within recent years a new kind has appeared from China under the name of Chinensis. They belong to the Magnolia family (Magnoliaceae). Liriodendron Tulipi- fera is found in the United States, where it forms a very large tree and produces valuable timber. Here, it often exceeds 100 feet in 264 THE BOOK OF HARDY FLOWERS height, with a trunk diameter of 3 feet. It is commonly known as the Tuhp Tree, and is popular alike, for its handsome, curious- shaped leaves and yellow and green Tulip-shaped flowers, Thq timber is imported into this and other countries under the names of Wliite Wood and Yellow Poplar, and it is largely displacing Deal for the backs of cabinets, drawers, and other kinds of work. Plant in good, deep, loamy, well-drained soil, increase by imported seeds, and prune when young to keep the trees shapely. There are several variegated varieties, but they are no improvement on the type. The Chinese tree, Chinensis, appears to be quite as vigorous as its better-known relative. Liriope. — Only one species is grown in gardens, namely, Liriope spicata (syn. graminifolia), a native of China and Japan. It is a member of the Natural Order Haemodoraceae. The plants are ever- green with arching leaves 10 or 12 inches long ; the deep violet-blue flowers are small, closely arranged on the upper part of a stem 9 to 12 inches high, and open from September to November. The Liriope thrives in ordinary garden soil, and prefers a sheltered, half-shady position. Increase is by division of the clumps during March and April, which is also the best time for planting. Ev^en more beautiful than the type is the variety variegata, with yellow leaves striped with green ; this is frequently used as a summer bedding plant. Lift the plants in autumn and store in a cold frame, planting out-of- doors again during May. Ophiopogon spicata variegata is another name for Liriope spicata. Lithospermum {Gromwell). — Dwarf alpine or rockery peren- nials, belonging to the Borage family (Boraginaceae). They thrive in well-drained sandy, peaty soil, and need a sunny spot. Increase is by seeds sown as soon as ripe or in spring in pots in a cold frame, by division of the clumps in autumn and spring, and by cuttings inserted in a cold frame during August. The most useful species are angustifolium, bright yellow, June, narrow foliage, 9 to 12 inches. North America ; canescens, rich yellow, June and July, grey foliage, 9 inches, North-West America ; Gastoni, azure blue with white centre, 12 inches, Pyrenees ; graminifolium, deep blue drooping flowers, June to August, tufts of grass-like leaves, Italy ; prostratum, dark Gentian-blue flowers from spring to autumn, a dwarf evergreen of great beauty, the most popular kind for the rockery, native of South- West Europe — the var. Heavenly Blue has lovely azure- blue flowers. Loasa. — This is a comparatively little-known though a rather large group of hardy and greenhouse annual and perennial plants (Natural Order Loasaceae). Only three are worthy of mention here : LOBELIA 265 hispida, yellow, a free-flowering half-hardy annual, July to August, 12 inches, Peru ; lateritia (Chili Nettle), coral or brick-red, July and August, a twiner or climber for warm walls and fences, 6 feet or more high, a half-hardy perennial, but usually treated as a half-hardy annual, the plants being raised under glass in spring and put out-of- doors early in June ; vulcanica, white with red and yellow centre, July and August, half-hardy annual, 12 inches. New Grenada. The Loasas are readily raised from seeds sown under glass in spring, either in a warm greenhouse or cold frame, the former for preference. Plant out on a warm, sunny border in well-drained soil early in June. Lobelia. — This is a very large class of tender and hardy perennials and annuals, belonging to the Bellflower family (Campanulaceae). The best known are the dwarf summer bedding sorts. Lobelia car- dinalis and fulgens, which blossom in autumn, are also very popular. The herbaceous perennials are propagated by division of the roots or clumps in March, by cuttings made of the young shoots during April and May, inserted in pots of sandy soil in a frame ; a third method of increase is to sow seeds in a greenhouse during February to produce flowers in summer, or in a cold frame in May to give plants the following year. They delight in rich, moist soil and a partially shaded position. In cold and wet soil it is desirable to lift the roots in October and store them in boxes of light sandy soil in a frost-proof shed for the winter. Another method of protection is to place little mounds of old coal ashes over the clumps from Novem- ber to March. The four perennial species generally cultivated are cardinalis, scarlet, August to October, dark green leaves, 2h to 3 feet, North America ; fulgens, brilliant scarlet, August to October, dark bronze-red foliage, Mexico ; syphihtica, blue, July to October, 3 to 4 feet, North America ; Tupa, reddish-scarlet, August to October, 4 to 6 feet, ChiH. For garden decoration the following sorts obtained by cross-breeding are very showy ; the plants produce slender graceful spikes of flowers, 3 to 4 feet in height, clothed with blossoms of various shades from August to October ; Queen Victoria, Gloire de St. Anne's, Firefly, Lord Ardilaun, Carmineus, caerulea grandiflora, Gerardi, Magnificent, multiflora, Milleri, Orion, Jupiter, and Purple Emperor. The dwarf Lobelias are popular flowers for summer bedding. Lobelia Erinus, from South Africa, a tender perennial, is the parent of the numerous named varieties. There are two methods of pro- pagation : by seeds sown in a heated greenhouse during February or early March, and by cuttings taken in August and kept on the greenhouse shelf during winter. In February further cuttings may be rooted by taking off the young shoots and putting them in pots 266 THE BOOK OF HARDY FLOWERS of sandy soil in a case in the greenhouse. LobeUas grow rapidly in spring, and in a month from inserting cuttings the tops of these can be taken off to form others. From fifty stock plants as many as a thousand can be obtained in spring ready to plant outside by the end of May. The plants thrive in rich, light garden soil in sunny beds and borders. The follovvmg are good named sorts, which must be propagated by cuttings : Barnard's Perpetual, rich blue, white centre ; Emperor William, deep violet ; Kathleen Mallard, deep blue, double ; Queen of Whites, dwarf, compact white ; Swanley Blue, bright blue ; Waverley, rich blue. Bedding Lobelias, taller and of spreading growth, are : speciosa, dark blue ; gracilis, blue (or white) ; and Hamburgia, a lovely blue trailing sort. These are especially useful for window boxes, vases, and hanging baskets. Lobelia tenuior (ramosa) is a beautiful half-hardy annual kind from Australia. It grows 12 inches high, and flowers freely from June to September. Seeds are sown in a heated greenhouse during February and March, the plants being put out-of-doors in beds and borders, or in window boxes and vases late in May. There are varieties, seeds of which are sold separately, with rich blue, pale blue, pure white, and rose-coloured blooms. Loiseleuria procumbens is a dwarf, prostrate shrub belonging to the Heather family (Ericaceae), closely allied to Rliododendron, and sometimes called the Alpine Azalea or Azalea procumbens. It is a native of the European Alps and other cold parts of the Continent, Asia, and America, whilst it also occurs in the Highlands of Scotland. Scarcely rising a couple of inches above the ground when at its tallest, it is frequently quite prostrate. The evergreen leaves are very small, and the white or pinkish flowers, each i to ^ inch across, appear during early summer, often in June. It should be planted in peaty soil in the rock garden, and increased by cuttings or seeds. Pruning is unnecessary. Lomaria (Hard Fern). — These are interesting and distinct ferns (Natural Order Filices) of dwarf growth. Division of the clumps is the usual means of increase, though if many plants are required they may be raised from spores. March is a good time to lift, divide, and replant. Plant in a shady spot in ordinary, well-drained soil con- taining a little leaf-mould. The best-known species is Lomaria Spicant, our native Hard Fern, sometimes grown as Blechnum Spicant. It has barren fronds, 8 or 9 inches, and fertile fronds, 12 inches long. There are numerous varieties, the best known being Aitkinianum, crested ; concinnum, crenulated margins to fronds ; cristatum, crest at ends of fronds ; plumosum, prettily divided fronds ; and trinervum coronans, divided pinnae, and crested. J*-— *1I. LONICERA 267 Lonlcera {Honeysuckle). — This group (Natural Order Capri- foliaceae) includes the climbing and bushy shrubs which are known popularly as Honeysuckles. They are found in Europe, Asia, and North America, and two species are included in the British Flora. As a rule, the bushy kinds produce their flowers in pairs from the leaf axils of young shoots from the previous year's growth, whereas the blossoms of the climbing sorts are in fairly large bunches in the upper leaf axils or from the points of similar growths. The bushy kinds are suitable for planting in shrubberies or for forming specimen bushes, while those of climbing habit can be used on pergolas, fences, walls, or other supports. The last-named, with a few exceptions, such as sempervirens and etrusca, which are rather tender, are better adapted for northerly gardens than for those in the south, for in gardens in the warmer counties they often become covered with greenfly. Bush Honeysuckles are, as a rule, seen to the best advan- tage when planted in sunny positions where the shoots become thoroughly ripened. Pruning should take the form of thinning the branches after the flowers have fallen. Loamy soil is the most satis- factory, and increase is by seeds and cuttings. The chief kinds are : Caprifolium, a climbing kind with showy, fragrant, yellowish flowers ; etrusca is a very vigorous climbing plant from Southern Europe, it flowers with great freedom, the ends of the branches for a length of 3 feet being often covered with yellowish flowers : the var. superba is an improvement on the type, and may be grown out-of-doors in the southern counties and in a cold, sunny greenhouse elsewhere. Fragrantissima and Standishii are two Chinese bush kinds that bear white and cream-coloured flowers respectively during January and February ; Heckrotti is a climber which bears red flowers freely ; involucrata, one of the best of the bush kinds, is from North-West America, its golden tubular flowers are enclosed by dark reddish bracts which remain until the black fruits are ripe ; japonica is a free-flowering Chinese and Japanese climber bearing yellow fragrant flowers ; flexuosa and Halliana are good forms, whilst aureo-reticulata has golden variegated leaves ; Maackii is a free- flowering bush kind from China. Lonicera Periclymenum, the Common Woodbine or Honeysuckle, is one of the best climbers ; the vars. belgica and serotina are often grown. Two other useful plants are : sempervirens, a climber, and tatarica, a bush. Loranthus is a parasitic plant closely allied to the Mistletoe, belonging to the Natural Order Loranthaceae. Loranthus europaeus is a native of Southern Europe and the Orient ; it grows upon the Olive 268 THE BOOK OF HARDY FLOWERS and various other plants, and may be introduced to gardens in the south-west counties. Loropetalum Chinense is a semi-tender Chinese shrub belonging to the Witch Hazel family (Hamamelidaceae). It may be grown out-of-doors in the warmer counties, but must have the shelter of a greenhouse elsewhere. Mature specimens may be from 3 to 5 feet high. The flowers are white, with narrow thread-like petals, reminding one of those of the Witch Hazels, and are borne in winter or early spring. It should be planted in warm, well-drained loamy soil containing a little peat or leaf- mould, and in the south- west may either have a place in the open or against a wall. Cuttings may be rooted during summer, and regular pruning is unnecessary. Lotus {Bird's foot Trefoil). — The only hardy kind worth growing is Lotus corniculatus flore pleno, a double variety of the wild Bird's- foot Trefoil ; it belongs to the Pea family (Leguminosae). The flowers, opening in summer and autumn, are yellow striped with red, and are effective in a sunny rock garden or old wall. A second kind from the Canary Islands, Lotus pelio- rhynchus, is really a green- house plant, but is grown out- of-doors in warm gardens ; it has long trailing growths, greyish stems and foliage, and crimson-scarlet Pea-like flowers in summer ; on account of its grey leaves and stems it is sometimes used as a carpeting plant in summer bedding. In- crease is by seeds sown in a greenhouse in summer. Lunaria (Honesty). — Lu- naria annua or biennis, mem- ber of the Wallflower family (Cruciferae), is a favourite plant in old-fashioned gardens ; it is biennial, and thrives in almost any soil and position, SEED PODS OF HONESTY ^^^^ ^" S^^^^" ^^ ^' ^ "^^^^^ (Lunaria biennis) of Northern Europe. Sow the LUPINUS 269 seeds outside during April and May on a border, and transplant in autumn where the plants are to flower. Self-sown seedlings usually come up freely every year. The plants grow about 2 feet in height, and have lilac-purple flowers in early summer, followed in autumn by silvery seed pods which are much valued for winter decoration when cut and dried ; there is a beautiful white variety. Lunaria rediviva, a perennial, native of Europe, has fragrant purple flowers in May and June, smaller than those of the common kind. Lupinus (Lupin). — The Lupins, which belong to the Pea family (Leguminosae), comprise hardy annuals, herbaceous perennials, and shrubs. All thrive in ordinary garden soil, and prefer a sunny position. They are equally valuable for large and small gardens, being showy and easy to grow. The Annual Lupins are suitable for groups in borders and for beds ; they vary from 12 inches to 3 feet in height, and flower from late June or early July until the end of September. Seeds are sown in a heated greenhouse or cold frame during March, and out-of-doors in April, where the plants are to flower. The Mexican Lupin (Hart- wegii) grows about 2 feet high and has blue and white flowers ; the vars. alba and azurea, azure-blue, are distinct and attractive. Lupinus subcarnosus, from Texas, 12 inches high, has violet-blue flowers with white centre ; mutabilis, 3 to 4 feet high, has blue and white or pink and cream flowers, its native home is New Grenada ; densiflorus (Menziesii) is a lovely yellow Lupin, 18 inches high, from California; from the same country comes nanus, 12 inches high, having dainty lilac and blue flowers. Then we have a few garden Lupins, for instance : hybridus atrococcineus, scarlet and white, 2^ feet ; Dwarf Blue and White, I foot ; Dwarf Yellow, fragrant, i foot ; Dwarf Carmine and White, I foot ; Dwarf Pink, i foot ; and Tall Dark Blue, 3 feet. The Perennial Lupins are invaluable hardy border flowers. They are of easy cultivation in ordinary soils. In addition to the old blue kind, Lupinus polyphyllus, from California, and its white variety, many sorts have been raised in gardens during recent years. A few of the best of these are : Moerheimi, pink ; Blue Cloud, lavender- blue ; Butterfly, purple and white ; Dusky Prince, dark violet-purple ; Excelsior, mauve ; Rosy Gem, rose ; and Taplow Purple, purple. The plants grow from 3 to 5 feet high, according to the quality of the ground, and bloom in May and June ; or, if seedlings are also grown, one can have Lupin flowers until frosts spoil their beauty. September or early October is the best time to plant or to replant. Seeds sown in a heated greenhouse during February will produce plants to bloom in late summer and autumn, or they may be sown 270 THE BOOK OF HARDY FLOWERS out-of-doors from April to June to obtain flowering plants a year later. A great variety of shades of colour can be raised from a packet of mixed seeds. Lupinus nootkatensis is a North American Lupin, 2 feet high, bearing purple, white, and yellow blooms in early summer. The North American Tree Lupin (Lupinus arboreus) forms a large shrubby bush, 3 to 5 feet or more in height and as much in diameter. In exposed positions the young shoots are cut during frosty weather, but, as a rule, this natural pruning only seems to make the plants flower more freely the following summer. In fact, to secure good, shapely bushes it is desirable to prune if the long, straggly growths escape harm from frosts. Increase is by cuttings inserted in sandy soil in a cold frame during late summer, and by seeds sown in a frame when ripe or in spring. The typical kind has pale yellow flowers ; varieties are Snow Queen, pure white ; Somerset, yellow ; Golden Spire, deeper yellow ; Milkmaid, primrose-yellow and white ; and Dorothy, blue and white. These beautiful Tree Lupins flower through- out the summer, and are fragrant. In exposed gardens, where these plants sometimes suffer in winter, they should be planted at the foot of a sunny south wall ; in fact, they need a sunny position and well- drained soil in all gardens. Lychnis (Campion). — In this group, which belongs to the Pink family (Caryophyllaceae), there are several useful annuals and numer- ous beautiful perennials with richly coloured flowers. They thrive in ordinary garden soil which has been well dug and manured. Pro- pagation of the perennials is by division of the roots in autumn or spring, by seeds (of the single-flowered kinds) sown on a border out- of-doors from April to June, and by cuttings made of young growths in spring and inserted in light, sandy soil in a frame. Lychnis alpina, 4 to 6 inches, purple-red, April to June, native of Europe, is a pretty little plant for a sunny spot in the rock garden ; Haageana, from Japan, is one of the most showy Campions on light, well-drained soil ; there are scarlet, white, rose, and pink sorts that flower during July and August, the plants are about 12 inches high, and are suitable for the rock garden or the front of a sunny border. Lagascae, a Spanish kind, is a charming alpine, 4 inches in height, with dainty, rose-coloured, white-centred flowers from May to July ; rosea, deep pink, and alba, white, are desirable varieties ; pyrenaica, from the Pyrenees, is a low- growing, glaucous-leaved plant bearing white flowers, May to July, suitable for the rock garden. The European Lychnis Viscaria grows about 12 inches high, and bears rosy-red flowers during June and July ; better than this for the rockery and front of the border are the varieties LYCIUM CHINENSE 271 alba grandiflora, white, splendens, rich red, and splendens plena, a most valuable plant with double, rosy-red flowers. The best perennial species for the flower border are : chalcedonica, the Jerusalem Cross, a slender-growing kind, 3 to 4 feet high, with showy scarlet flowers during July and August — an invaluable plant. The Crowned Campion from Southern Europe, coronaria (Agrostemma coronaria) will thrive in sun or partial shade, even among hardy ferns in the shady border ; it has grey leaves and stems, grows 2 to 3 feet high, and bears rosy-crimson flowers in summer ; alba, white ; atro- sanguinea, rich crimson-purple ; oculata, white, rose centre ; and Walkeri, blood crimson, are distinct varieties. From a packet of mixed seeds a number of colours can be raised. Two varieties of our native Ragged Robin (Flos-cuculi) are grown in gardens ; alba plena, double white ; and rubra plena, double rose ; these are 18 inches high, flower freely from June to September, thriving particularly in moist soil and the bog garden. Lychnis Flos-jovis, the Rose Campion, 18 to 24 inches in height, has bright pink flowers in summer. One of the most beautiful Campions is Lychnis vespertina alba plena ; it is a double white-flowered variety of our native Evening Campion, 2 to 3 feet high, with fragrant flowers, from June to September. The annual Campion, Lychnis Coeli-rosa (syn. Agrostemma Coeli- rosa), the Rose of Heaven, is native of the Levant ; it grows 18 inches high, and bears rosy-purple flowers during summer. There are several varieties of distinct colours which come true from seeds, or seeds may be purchased in mixture. Dwarf Carmine, 6 inches high, is valuable as an edging ; the seeds are sown outside during April on a sunny border, where the plants are to flower. Lycium Chinense is the well-known Box Thorn or Tea Tree, a strong-growing Chinese shrub with trailing branches, belonging to the Potato family (Solanaceae). It is often planted where a quick and dense-growing plant is required to mask unsightly objects. Its attractions centre in the small purple flowers, each about | inch across, and in the bright red fruits which are very showy in autumn. Lycium pallidum, from New Mexico and Arizona, is not so well known ; it is a loose-growing bush 4 feet high, with glaucous leaves, greenish flowers, and orange- coloured fruits. Plant in ordinary garden soil, give a sunny position, increase by means of seeds in spring, and thin out the shoots of the former kind occasionally. Lycopodium (Club Moss). — There are seven native British Club Mosses (Natural Order Lycopodiaceae) ; they are more interesting than beautiful, and appeal to the botanist rather than to gardeners. They revel in a moist, peaty soil in the bog garden, or in low parts 272 THE BOOK OF HARDY FLOWERS of the rockery. The plants are increased by division, spring being the best time ; they are flowerless evergreen plants, allied to ferns, and produce spores instead of seeds. The species are : clavatum, a fairly common plant in the North of England, Scotland, and Wales ; annotinum, fairly common in Scotland, and found in one or two places in England and on Snowdon ; complanatum, found in Gloucester- shire and Worcestershire ; alpinum, common in Scotland and North of England ; inundatum, selaginoides, and selago, the Fir Club Moss. Lycoris. — Bulbous plants (Natural Order Amaryllidaceae), suit- able for planting on a well-drained, sunny border in sandy loam, peat, and leaf-mould. Plant the bulbs 3 to 4 inches deep in September or October and 6 inches apart. They grow 12 to 24 inches in height. The best species are : aurea, golden-yellow, August and September, China ; radiata, a Chinese species with pinkish-red flowers in June and July ; squamigera, a Japanese plant, with fragrant, rosy blossoms in July and August. Lyonia ligustrina is a North American bush, from 2 to 3 feet high, belonging to the Heather family (Ericaceae). It is of rather dense growth, and produces racemes of white flowers freely during late spring and early summer. Conditions similar to those required by Rhododendron are necessary. Increase is by seeds or cuttings in summer, and pruning is limited to the occasional thinning out of the older branches. Lysimachia {Loosestrife, Creeping Jenny). — Several very useful hardy perennials are found in this group, which belongs to the Primula family (Primulaceae). The plants thrive in ordinary garden soil, including that of a rather wet, boggy nature. Increase is by division from October to March, while seeds may be sown in a cold frame, or outside from April to June. A sunny or partially shaded spot is suitable. Lyismachia clethroides, a Japanese plant, 2 to 3 feet high, has spikes of white flowers in July and August and prettily tinted foliage in autumn ; Ephemerum, from Southern Europe, grows 3 feet high, has grey leaves and erect spikes of white flowers in July and August, it is a useful water-side plant ; Henryi is a new Chinese species of low growth with large yellow flowers in summer, and is suitable for the rock garden ; longifolia, from North America, reaches a height of 2 feet, and bears showy yellow blooms in July and August. Lysi- machia Nummularia (Creeping Jenny, Moneywort), the best-known kind, is a native trailing plant that will grow anywhere, and its yellow blooms in summer are familiar ; it spreads very rapidly ; the golden-leaved var. aurea is very handsome, and much used as a carpet lor summer bedding ; punctata (syn. verticillata), a European kind, LYTHRUM 273 3 feet high, has spikes of yellow flowers in July and August ; it is useful for the water-side. Lythrum {Purple Loosestrife). — The Loosestrifes (Natural Order Lythraceae) are good-natured plants, thriving in sun or partial shade and in ordinary soil. While attractive in the mixed flower border, they are particularly suited for cultivation by the water-side, the north border, and wild garden. Increase is by division of the clumps from October to March, by cuttings inserted in pots of sandy soil in a frame in April, and by seeds sown in a heated greenhouse during February to flower the same year, or outside from April to June to blossom the following year. The Common Purple Loosestrife (Sali- caria) is a British wild plant, and the plants cultivated in gardens are varieties of this. Three good ones are : rosea, rich rose ; superba, deep rose ; and Brightness, rose-pink, which grow 3 to 4 feet in height and flower freely from July to September. Also flowering during the same period is Lythrum virgatum Rose Queen, 3 J feet high, having long graceful spikes of bright rose-coloured flowers ; alatum, 2 feet high, bears crimson-purple flowers from June to September. Madura aurantiaca, the Osage Orange of the Southern United States, is a tall deciduous tree armed with ferocious spines. It belongs to the Natural Order Urticaceae, and is allied to the Mulberry. Neither flowers nor leaves are of special interest, but the round, orange-like fruits are ornamental. The leaves are sometimes used in America as food for silkworms, whilst the spiny branches, and the fact that the plant withstands severe pruning well, make it a good hedge plant, and as such it might be used in this country. It grows well in ordinary garden soil, and may be pruned during winter. Male and female flowers are produced on different trees. Macrotomia. — {See Arnebia.) Magnolia {Lily Tree). — This group (Natural Order Magnoliaceae) is a very important one to gardeners, for it includes a large number of ornamental trees and shrubs, many of which are hardy in numerous parts of the United Kingdom. Others are only suitable for the milder counties or for planting against walls, but the majority which have been introduced may be grown in one part or another of the British Isles. The head-quarters of the Magnolia is in China, but some occur in the Himalaya, Japan, and the United States. The various kinds thrive in warm, well-drained loamy soil, but appreciate a little peat or leaf-mould, especially in the soil placed immediately about the roots at planting time. It is advisable to put the larger- growing sorts in permanent positions early in life, for they are rather difficult to transplant after they have attained a moderate size. Plant- S 274 THE BOOK OF HARDY FLOWERS ing should be conducted either early in autumn (say in September), or during April or early May. Propagation is effected by seeds, grafts, or by layering branches. Pruning should be directed toward shaping the bushes, but the plants need not be pruned very severely. Summer is the best time for the work. A selection of the best kinds is as follows : Magnolia acuminata is a tall tree with large handsome leaves, native of the United States, where it is called the Cucumber Tree or Mountain Magnolia ; its greenish-white flowers are not very showy. Campbellii, a native of the Eastern Himalaya, is one of the showiest of all, but, unfortunately, it can only be grown in the mildest districts ; forming a large tree in its native country, it grows between 20 and 30 feet high here, the flowers often exceed 9 inches across, and are rich red without and white flushed deeply with rose within. Delavayi is a new evergreen species from Yunnan, bearing very large leaves and cream-coloured flowers ; it must be planted against a wall in the southern counties. Magnolia conspicua, the Yulan of China and Japan, is one of our earliest flowering trees, and it is often at its best during late March and early April ; the white, cup-shaped, fragrant flowers cover every part of the leafless branches. There are numerous trees between 15 and 40 feet high in the neighbourhood of London. It is sometimes grown against walls. Crossed with obovata, a bushy, purple-flowered Magnolia from China, a number of very beautiful hybrids have been produced ; these bloom profusely, the fragrant flowers usually being white, more or less deeply stained with purple. Good ones are : Alexandra, Norberti, and Soulangeana. Fraseri is a deciduous summer-flowering species from the Southern United States ; its flowers are 6 to 8 inches across and buff- coloured. Glauca, the Swamp Bay or Laurel Magnolia, from North America, may be either evergreen or deciduous ; it forms a large bush with white flowers. Magnolia grandiflora, the Bull Bay of the Southern United States, is often grown as a wall plant in this country, although in the south and west it forms a handsome bush or small tree in the open ground. Its large evergreen leaves are very attractive, but during summer attention is diverted to the handsome white blossoms which are often 9 inches across ; of the several varieties, that known as gloriosa is probably the best. Hypoleuca is a comparatively new Japanese species, with large deciduous leaves and white flowers. Lennei is a hybrid, it is said, between conspicua and obovata, but from the shape and colouring of its flowers the first-named and Campbellii appear to be the most likely parents ; it blooms in May, the flowers being crimson on the outside with very large shapely petals; :'i *^ A LILY TREE (MAGNOLIA SOULANGEANA) THE MONKEY MUSK (MIMULUS CARDINALIS) / •.■/<>.■ ;/'. //. IVa/f,' HIMALAYAN POPPY (MECONOPSIS ACULEATA) NARCISSUS JOHNSTONI QUEEN OF SPAIN MAIANTHEMUM 273 Magnolia macrophylla is only available for the southern counties, but it is a magnificent plant both by reason of its handsome foliage and large buff-coloured flowers ; it forms a small tree, and is native of the Southern United States. Parvifiora, from Japan, is a deciduous bush with white shapely flowers enclosing a mass of crimson stamens ; the flowers appear in May and June. Watsoni, from the same country, is a somewhat similar shrub, though larger in all its parts. MagnoHa stellata is a handsome Japanese bush 4 to 12 feet high, with a similar diameter ; its glistening white star-like blooms are borne with exceptional freedom in April (var. rosea has rose-tinted blooms). Salicifolia, a new Japanese bush or small tree, bears pretty white flowers 3 to 4 inches across in May. Tripetala, the Umbrella Tree of the United States, is distinguished by large foliage, white flowers, and red fruits Mahonia. — {See Berberis.) Maianthemum (Two-leaved Lily of the Valley). — The only kind available for our gardens is Maianthemum Convallaria, a native of the north temperate regions ; it is of herbaceous habit, and belongs to the Lily family (Liliaceae). The plant is generally hardy in the British Isles, and should be planted in shady or semi-shady places in soil rich in humus, such as is found in an Oak or Beech wood, and it is a good plant for naturalising in wild gardens, its requirements being very similar to those of the Lily of the Valley. It spreads by means of underground stems, and may be easily propagated by digging up and dividing the roots or rhizomes any time between the fall of the leaves in autumn and the beginning of growth in spring. In height it rarely exceeds 9 inches, and the white flowers appear in May. In some parts of the British Isles it is found wild. Maidenhair Tree. — (See Ginkgo.) Maize. — (See Zea Mays.) Malcolmia (Virginian Stock). — The plants found in this group of the Wallflower family (Cruciferae) are mostly of annual duration, the best known being the common Virginian Stock (Malcolmia mari- tima), from the Mediterranean region. There are, however, other species, some confined to Greece and others being more widely dis- tributed in Southern Europe. They thrive in any good garden soil, and are excellent for groups along the front of the herbaceous border, or for large masses upon ground which it is wished to clothe quickly. Seeds are sown out-of-doors where the plants are to bloom ; those sown in March or early April will bloom during June and July, whereas those sown late in May or in early June will bloom in August and September. It is wise to thin the seedHngs to a distance of 3 inches 276 THE BOOK OF HARDY FLOWERS apart. Malcolmia maritima grows from 6 to 9 inches high and bears white, lilac, rose or red flowers. Good varieties are : alba, white ; and Crimson King, crimson. Mixed kinds are, however, very effective. Other useful sorts are : bicolor, 6 inches, pink and yellow, Greece ; Chia, 6 to 12 inches, purple or lilac, Greece ; and littorea, 6 to 12 inches, purple or reddish-purple. Southern Europe. The flowers of the various kinds are fragrant, especially in the evening. Mallow. — {See Malva.) Malope.^ — ^The IMalopes, which belong to the Mallow family (Malvaceae), contain one species of considerable decorative value, namely Malope trifida, an annual, native of Spain and North Africa. It grows to a height of 2 feet, and branches freely, each shoot bear- ing a number of large crimson flowers, upwards of 2 inches across, which resemble those of a single Hollyhock. There are several varieties, that known as grandiflora being really a glorified form of the typical kind, whilst grandiflora alba has white flowers and rosea, rosy-pink blossoms. Malopes are among the most beautiful of hardy annuals, and are of the easiest possible cultivation providing they are given deeply-dug, loamy soil, enriched with manure. It is wise to sow the seeds, where the plants are to flower, during the latter part of March or early in April. Sow thinly and cover the seeds with about one-third of an inch of soil. As soon as the seedlings are large enough to handle, thin them to at least 10 inches apart. They mature seeds freely which may be kept from year to year if they are stored in a drawer in a cool room. Malva (Mallow). — Numerous hardy herbaceous plants of annual, biennial, or perennial duration are found among Malva (Natural Order Malvaceae). Several are natives of the British Isles, two common ones being moschata, the Musk Mallow, and sylvestris, the Marsh Mallow. Although several of them bear showy flowers in profusion, they cannot be considered to be amongst the most attractive her- baceous plants, and are certainly of less decorative merit than Malope trifida and the Hollyhock. But they have advantages, for they thrive in poor soil, and the British kinds are effective amongst wild plants. The kinds usually found in gardens are Alcea, a European perennial growing 4 feet or more high, with pink or reddish flowers, commonly called the Vervain Mallow ; crispa, an annual, native of Europe, 2 to 4 feet high, flowers white ; moschata (Musk Mallow), perennial, 2 to 3 feet, rose ; the variety alba has white flowers. They are easily grown from seeds, which may be sown as soon as they are ripe, or they may be kept in a cool room and sown in March. In either case they can be sown in an open border. MALVASTRUM 277 Malvastrum {False Mallow). — Most of the species of this group of the Mallow family (Malvaceae) are natives of the New World, being found in Western North America, Parana, Uruguay, and Chili, though one or two kinds are widely distributed through the warmer regions of the world. They are not very hardy, but a few kinds can be grown in the herbaceous border and rock garden in the South of England. They thrive in warm, loamy soil, and are increased by seeds sown under glass in February. Their decorative merits are not pronounced. Malvastrum coccineum, 6 inches, scarlet, North- West America ; Gilliesii, 6 inches, red, Parana ; lateritium, 6 inches, red, Uruguay ; and campanulatum, i to i^ feet, purplish-rose. Chili, are amongst the best. All bloom during summer. Mammillaria. — Mammillaria belongs to the Cactus family (Cactaceae), and consists of a large number of quaint-looking leaf- less plants, which are thickly armed with spines. They are found largely in the arid regions of Mexico, Arizona, and Texas, and are usually dwarf and compact in habit. Some kinds do not grow more than I inch or 2 inches high, whilst others may attain a height of 6, 9, or 12 inches. The stems are usually round and divided into numerous regular-sized, cushion-like excrescences from which the small tufts of spines, which in some species are short and in others of considerable length, are produced. The flowers in most cases are very attractive, being red, rose, yellow, or white in colour, whilst they are followed by pretty red fruits. They require a sunny green- house to bring them to perfection, but fairly good results can be obtained by growing them in a sunny window, and the stronger- growing kinds can be plunged in beds out-of-doors for the summer months. Cultivation is simple, for they thrive in well-drained pots in a compost of 2 parts good loam to i part of broken lime rubble, and coarse sand with a little leaf-mould. They can be left in the same pots for several years. During winter practically no water should be given. Of the large number of species available, the following is a selection : barbata, a dwarf plant with rose flowers and white spines ; bicolor, dwarf, purple, covered with small spines ; dasyacantha, 3 inches, red ; elongata, 3 to 4 inches, yellow ; formosa, red ; Mis- souriensis, dwarf, yellow or red. Southern United States — this is one of the hardiest kinds, and can be grown out-of-doors in a few places in the British Isles. Mandragora {Mandrake). — Herbaceous plants of perennial dura- tion, which belong to the Potato family (Solanaceae). They are pecu- liar on account of their thick, fleshy rootstocks which frequently bear a resemblance to the human form. Probably on this account, together 278 THE BOOK OF HARDY FLOWERS with their medicinal properties, many weird legends are attached to the plants. In some countries people would not upon any account pull the plants from the ground, for such work could not be done without some breakage of roots, which was said to cause the plants such pain that they screamed, and bad luck was sure to dog the foot- steps of any person who injured them. As the roots were required, however, the collectors dug round the plants to loosen them, and then tied an animal to each plant, causing it to pull the plant from the ground. They are not of any great value for decorative pur- poses, but are sometimes planted in semi-shade, where the soil is moderately deep. Propagation is by division of the crowns in spring or by seeds sown out-of-doors, or in a frame during February or March. Mandragora autumnalis grows about i foot high and bears purplish flowers in early autumn, and officinarum (the Medicinal Mandrake) bears white or blue flowers in May. Both are found in the region bordering the Mediterranean. Maple. — {See Acer.) Marigold. — [See Calendula.) Mariposa Lily. — (See Calochortus.) Marjoram. — {See Origanum.) Marrubium {White Horehound). — Herbaceous perennials, remark- able for their somewhat pungent odour and bitter taste. They belong to the Sage family (Labiatae), and few of them have any decorative value. One species, however, the Common Horehound (Marrubium vulgare), a native of Europe (including the British Isles) and North Asia, is usually grown amongst collections of medicinal plants and herbs, for at one time it possessed a considerable reputation as a simple domestic medicine by reason of its tonic properties. Except in some country places, however, it appears to have fallen largely into disuse. Plant in ordinary garden soil, increase by division in February or March, or by cuttings dibbled in sandy soil in a frame, when the shoots are 2 or 3 inches long, in April. Marsdenia erecta. — This is a climbing shrub (Natural Order Asclepiadaceae) from Eastern Europe and Asia Minor, suitable for planting in the milder counties. Its slender stems are clothed with broadly ovate or heart-shaped leaves, and the small white flowers are produced from the upper leaf axils and the points of the current year's shoots towards July or August. Plant in ordinary garden soil against a wall for preference. Cuttings can be rooted during summer if inserted in sandy soil in a close frame. Pruning should take the form of cutting the previous year's shoots well back in February once the plant has covered the available space. J9^Sr>^tJr^*^ ) > f I' » I < \ A ?^ MATRICARIA 279 Marigold. — {See of Peru. — {See Marsh Caltha.) Marvel MiRABILIS.) Matricaria {Mayweed). — Annual and perennial herbs, often of a weedy character, are found in this genus of the Daisy family (Compositae). Some of them are rather pretty when in flower, "and they thrive in poor soil. Matricaria inodora, a white-flowered native plant, grows on waste ground in most parts of the country, and is sometimes a troublesome weed on cultivated land ; Tchihat- cheffii, a dwarf, white-flowered species from Turkish Armenia, is one of the best kinds for the garden, and is sometimes planted in the rock garden ; it is increased by seeds sown in spring or by division in Feb- ruary or March. Matricaria Chamomilla, a widely distri- buted European plant, is known as the Wild Chamomile ; its flowers have tonic properties similar to the true Chamomile (Anthemis nobilis), for which they are sometimes substituted. Matthiola {Stock).— A number of very useful and ornamental annual, biennial, and perennial border plants are included in this group of the Wallflower family (Cruciferae). They are well known under the name of Stock, and various species have produced such kinds as Ten-Week, East Lothian, Brompton, Night-scented, etc. Matthiola incana (sometimes called annua), a native of Southern Europe, etc., is perhaps the most important species, for it is the parent of most of the garden Stocks. It may be either of annual or biennial duration, whilst occasionally, in the case of the Brompton Stock, plants may live for two or three years ; for this reason incana and THE TEN-WEEK STOCK (Matthiola) 280 THE BOOK OF HARDY FLOWERS annua were at one time kept separate, the former being credited with the production of the Brompton and the latter with the Ten-Week kinds. Now, however, all are grouped under incana, a plant which is sometimes found wild near the coast in the South of England. The typical kind grows i foot to 2 feet high, and bears purplish flowers, but the cultivated forms vary greatly not only in growth, but in the colour and form of the flowers. Seeds of the Ten-Week Stock should be sown under glass in March. When large enough to handle prick out the seedlings 2 or 3 inches apart in a compost of 3 parts loam, i part leaf-mould, and i part well-rotted manure, in boxes, or a bed in a frame. About the middle of May plant them permanently in good soil. The chief consideration should be to keep them growing without a check from the seedling to the flowering stage. Many varieties are offered by seedsmen, good ones being : Canary-Yellow, Crimson, Purple, White, Rose ; all are double. Packets of mixed colours, however, usually give quite good results. A large-growing strain of Ten-Week Stock is known as Giant Perfection, and a dwarf strain as Dwarf German. Both can be procured in all the colours mentioned above. A class of Stocks which may be grown either as Ten-Week or winter-flowering for pots under glass is known as New Admiration ; white, rosy- lilac, flesh and crimson-coloured kinds can be obtained. The Brompton Stock is a biennial, though it sometimes lives to bloom a second or even a third time. Seeds should be sown in June or July of one year, out-of-doors, to produce flowering plants the following year. Double-flowered kinds with purple, scarlet, white, or rose-coloured flowers can be procured. The Intermediate or East Lothian Stock is a biennial. Seeds are sown in summer to obtain plants that will bloom the following year. In the warmer parts of the country the plants may be left out all winter, but in colder places they should be kept in a frame until spring. These kinds are useful for flowering in the greenhouse. Varieties with double crimson, scarlet, purple, and white flowers can be procured. Crystal White is a very attractive white-flowered variety, whilst a good group is known as May Queen ; it can be obtained in scarlet, purple, or white. Wallflower-leaved Stocks are simply Ten- Week varieties, with leaves resembling those of the Wallflower. As a rule it is not advisable for the amateur to save his own seed. By sowing seeds of Intermediate Stocks under glass in February and growing them without a check, they can often be got to flower out-of-doors in August and September. Matthiola tristis, the Night-flowering Stock, is a native of Southern MECONOPSIS 281 Europe, forming a sub-shrub with red or purplish flowers. It is not very hardy, and should be given a sheltered position. Matthiola bicornis, the Night-scented Stock, is a free-flowering annual, about 12 inches high, with lilac blooms that are very fragrant in the evening. Seeds are sown in March or April where the plants are to bloom: May Tree. — (See Crataegus.) Mayflower. — {See Epigaea.) Meadow Sweet. — {See Spiraea.) Meadow Rue. — (See Thalictrum.) Meconopsis {Poppywort). — Biennial and perennial herbaceous plants belonging to the Poppy family (Papaveraceae) : they are repre- sented in the British Flora by the Welsh Poppy (Meconopsis cam- brica), a perennial plant 9 to 12 inches high, which bears yellow flowers freely during late spring and early summer. It is useful for naturalising on stony ground, for planting on walls, or for the rock garden. Seeds are sown in spring from which plants may be pricked out in beds in June and be planted permanently in autumn. Mecon- opsis aculeata is a very beautiful plant from the temperate Himalaya ; it is of biennial duration, and seeds sown in May or June produce good plants with considerable tufts of hairy leaves by autumn. In spring they grow vigorously if in moist and good soil, and a strong inflorescence appears from the centre of each plant, reaching 2 to 3 feet high, and bears large blue or purplish flowers. Meconopsis bella is a rare species from the Himalaya, growing from 4 to 6 inches high and bearing solitary blue flowers in June ; it should be planted in the rock garden. Meconopsis integrifolia is a remarkable plant from China ; it is a biennial, and blossomed for the first time in this country in 1905. From seedlings raised in May or June a strong central flower spike appears the following May or June, which produces large flowers of a pretty, soft yellow colour. Another attractive Chinese species of recent introduction is punicea. This is correctly a perennial of dwarf habit, which produces large red, solitary, Sarracenia-like flowers on slender stalks ij to 2 feet high in May. It is raised from seeds sown as soon as ripe, but is rather difficult to keep owing to its dislike of a damp atmosphere in winter. Meconopsis WalUchii, from the Himalaya, is one of the most beau- tiful of all when at its best. Plants raised from seeds sown in June flower in the following June ; the inflorescences rise to a height of 3 or 4 feet and bear large numbers of blue or purplish flowers, each one about 3 inches across. Some people prefer to sow seeds of this 282 THE BOOK OF HARDY FLOWERS and other kinds under glass in March to plant out in June, but such plants are apt to bloom prematurely. Meconopsis nepalensis, also a Himalayan species, is sometimes called the Nepaul Poppy. Its flowers are yellow : heterophylla is an annual from California, its flowers are copper or crimson-coloured. The biennial sorts should have well- drained soil, for they are liable to suffer from damp in winter. It is a wise plan to cover large plants with a sheet of glass in order to throw off the worst of the rain. All the Meconopsis (except the annual kind, heterophylla) like a shady place and peaty, loamy soil. Medeola {Indian Cucumber Root). — The only species known of this North American genus of the Lily family (Liliaceae) is virginica, a hardy herbaceous plant growing about 9 inches high and bearing small yellowish-green flowers in June. It increases by means of fleshy underground stems which have a Cucumber-like flavour, hence the common name. Division of the clumps in February or March forms a ready means of increase, and the plant thrives in ordinary garden soil. It, however, has little decorative value. Medicago arborea {Moon Trefoil).- — A showy shrub from Southern Europe belonging to the Pea family (Leguminosae). Growing 3 or 4 feet high, it bears bluish-green leaves and a profusion of golden flowers in summer. It is essentially a sun-loving plant, and should be given the sunniest position available, preferably against a south or west wall, for it is not very hardy ; or in the extreme south it may be given a place in the rock garden. Plant in loamy soil, increase by means of seeds, and confine pruning to shaping the bushes or shorten- ing shoots which may have been injured by frost. There are numer- ous herbaceous species of Medicago, which are valuable as fodder plants, especially sativa, which is known under the common name of Lucerne. It is a very deep-rooting plant, and keeps green in times of drought when most other fodder plants are burnt up. Medicago Echinus, the Calvary Clover, is sometimes grown in gardens on account of its legendary associations. This is an annual, bearing yellow flowers in July, and is raised from seed sown in pots in April, the plants usually being grown in a greenhouse ; the leaves are marked with dark purplish blotches, and the fruits are curiously curled. Medlar. — (See Crataegus.) Melianthus {Honey Flower). — Two species, major and minor, are grown of this genus of the Sycamore family (Sapindaceac). Both are natives of South Africa and are semi-tender plants of loose, bushy habit, although major is often grown out-of-doors in summer with other bedding plants for the sake of its large, glau.ous green, pinnate leaves. When planted against a pillar in a conservatory its long. THE YULAN (MAGNOLIA CONSPICUA) THE FAVOURITE WISTARIA SINENSIS MELIOSMA 283 rather gaunt branches grow 10 to 20 feet high, but out-of-doors it is often but 3 or 4 feet high. In the milder parts of the country it survives the winter out-of-doors, especially when planted in warm, well-drained soil at the foot of a wall. In other districts the root- stock can be saved by covering it with ashes, though the branches may be killed. Cuttings inserted in light soil in a warm and close frame in August root quite easily, and may be stored in a cool green- house for winter to supply more cuttings in March. By the end of May they will be ready for planting out-of-doors. It may also be raised from seeds sown under glass in February. Plants which are kept on from year to year may be cut back a little in February to keep them bushy. The reddish flowers are borne in summer in long racemes. Minor, with flowers of reddish-brown, grows about 4 or 5 feet high, and is much smaller in all its parts. Similar treatment to that recommended above suffices. IVIeliosma. — Two or three kinds of Meliosma (Natural Order Sabicaceae) have been known for many years, but little attention was paid to the family before the early years of the present century, when several kinds were introduced from China from districts with a climate very similar to that of the British Isles. So far as it is possible to tell at present, the Chinese plants will fulfil early expecta- tions, and be hardy enough for general cultivation except in the coldest parts of the country. The Meliosmas have usually conspicu- ous oval or oblong leaves and large inflorescences of small cream- coloured flowers. They should be planted in good, well-drained loamy soil, are usually increased from seeds, and require no regular pruning. Where they cannot be grown out-of-doors their cultivation had better not be attempted, for they are too coarse growing for an ordinary greenhouse. Meliosma myriantha, native of China and Japan, one of the older kinds, is suitable for the south and west counties. IVIelissa (Balm). — One species, officinalis, of this group of the Sage family (Labiatae) is usually included in collections of herbs, principally for the sake of its fragrant leaves. Sometimes truly herbaceous, it is more often met with as a sub-shrub i foot or 2 feet high, or sometimes taller ; the leaves, when bruised, emit a very pleasant odour, owing to the liberation of an essential oil, and they are considered to possess slight medicinal properties, being one of the old-fashioned remedies for colds when steeped in water or made into " tea." The white or yellowish flowers are borne during summer, but are not very showy. Propagation is by seeds, sown either under glass or outdoors in March, or by cuttings placed in a cold frame in May ; division of the plants in spring may also be practised. Varie- 284 THE BOOK OF HARDY FLOWERS gata is a variety with variegated leaves ; it is grown from cuttings inserted in a cold frame in autumn or by division in spring, and is grown as a border and bedding plant. It is easily kept dwarf by pruning. Melittis {Bastard Balm or Honey Balm). — Melittis Melissophyllum, a handsome herbaceous perennial, native of Europe, including the British Isles, is the only cultivated species of this group, which be- longs to the Sage family (Labiatae). Growing from 12 to 18 inches high, it forms a dense plant, and produces showy flowers in May. A few blooms only are borne upon each inflorescence, but they are about i^ inch long and creamy-white with a purple Hp. It enjoys a certain amount of shade, and may be included with good results amongst plants for naturalising in thin woods. It is not very fastidious regarding soil, as it grows in any kind that is moderately good. In- crease is by division during February or March and by seeds sown out-of-doors during the latter month. The variety grandiflora has rather larger and brighter-coloured flowers than the type. Menispermum. — Two climbing plants belonging to this genus (Natural Order Menispermaceae) are sometimes found in gardens. They are Canadense, the Moonseed, from North America, and dauricum, from Siberia, China, and Japan. Both are perfectly hardy and thrive in ordinary garden soil, either against walls or trellises or over rough posts or bushes in the open garden. The foliage is rather distinct by reason of its bright green colour and peculiar shape, but the flowers are not showy. The round black fruits are, however, conspicuous, for they resemble small bunches of grapes. Increase is by seeds or by division of the clumps. Superfluous growth may be cut out during February. Mentha (Mini). — Several valuable herbs are found in this group of the Sage family (Labiatae), and there are few gardens throughout the country which do not contain one or more representatives. The Spearmint (viridis) is widely grown for flavouring purposes, a sprig or two being usually boiled with new Potatoes and Peas, whilst it is in great demand for Mint sauce. Groups are easily established by taking cuttings of young shoots when they are about 4 inches long in spring ; they should be removed below the ground, in order to secure a few roots, and be dibbled into ordinary garden soil. Growth is rapid by means of underground stems. Division of the roots k also a means of increase, but cuttings are usually preferred. Mentha Pulegium is the Pennyroyal of gardens, grown for its aromatic pro- perties ; it, like the former, is a native of Europe, including Great Britain, and can be grown under similar conditions. Mentha piperita MENTZELIA 285 and its variety officinalis are, however, the most important Mints from a commercial point of view. They are known by the common name of Peppermint, Mentha Requieni (known also as Thymus corsicus) is a charming, low-growing, creeping plant for the rock garden bearing purplish blossoms in July. Mentzelia. — This group of New World herbaceous plants is in- cluded in the Natural Order Loasaceae. It comprises several showy kinds which are usually of biennial duration, but they are rather difficult to grow successfully. The seeds should be sown under glass in May or June in light sandy soil, the seedlings being pricked out in boxes in a compost of 3 parts light fibrous loam to i part each of leaf-mould and sand. When large enough they are potted singly in 3-inch pots, and as soon as established are plunged in ashes in a sunny position until autumn ; they are removed to a cold frame for winter, and planted on a warm, sunny border in April. Good kinds are : Lindleyi, 8 to 12 inches, yellow, California ; laevicaulis, 2 feet, yellow, California ; oligosperma, 2 feet, orange, Louisiana ; ornata, 2 feet, white. North America. Some people treat all these kinds as annuals by sowing the seeds during early February in a greenhouse and growing the plants under glass to plant out in May. Menyanthes {Bog Bean). — Menyanthes trifoliata, which belongs to the Gentian family (Gentianaceae), is the only kind ; it is a widely distributed plant throughout the Northern Hemisphere and is wild in the British Isles, in shallow pools and streams, growing in mud a few inches below the surface of the water, and is also found in bogs and marshes. It is easily recognised by the Broad Bean-like leaves produced on strong stems a foot or more high, and by its racemes of prettily fringed flowers, which are white, suffused with pink. By lift- ing the rhizomes and placing them in baskets of soil it is easy to establish plantations by sinking the baskets in ponds or streams. Such work must be done in spring. Menziesia globularis is a shrubby plant belonging to the Heather family (Ericaceae). It is found in the Alleghany Mountains, from Pennsylvania to Georgia, where it forms a small bush sometimes several feet high. Here it is often less than 2 feet in height. Its small bell-shaped flowers are white or pinkish in colour, pendent, and appear in summer, but they are amongst the least conspicuous of those of the various plants of the Heather family. Conditions which suit the Heath will suit this shrub also. Increase is by seeds and no pruning is needed. There is a variety called ferruginea or hirsuta. Merendera. — Bulbous plants, belonging to the Lily family (Lihaceae) ; they are allied to the Colchicum, and some blossom in 286 THE BOOK OF HARDY FLOWERS autumn, others in spring. Well-drained, light loamy soil is suitable, and they may be planted in beds, borders, or as clumps in the rock garden. They can be transplanted any time after the fall of the leaves, and increase is by division of the clumps of bulbs, and by seeds sown in boxes in a frame as soon as ripe. Good sorts are : Bulbocodium, 4 inches high, flowers large, pinkish-lilac, autumn, Spain, etc. (the var. bulbocodiodes produces larger flowers and is more vigorous) ; persica, 2 to 3 inches, lilac, autumn, Persia and Afghanistan ; sobolifera, 3 inches, lilac, spring, Asia Minor and Persia. Mertensia {Smooth Lungwort). — These plants are of herbaceous habit, and resemble the ordinary Lungwort or Pulmonaria, but may be easily distinguished by their smooth leaves, those of Pulmonaria being rough and hairy. Most are natives of North America, but a few are found elsewhere, one inhabiting Siberia and another being widely distributed through the north temperate and arctic regions. They belong to the Borage family (Boraginaceae), and the more vigor- ous kinds are suitable for the herbaceous border, the weaker ones being more at home upon the rockery. They require moderately light and well-drained soil, and are increased by division in February or March or by seeds sown in a frame in March. Mertensia alpina, from North- West America, is a charming little plant suitable for the rock garden ; its flower-stems, terminated by pretty blue flowers, appear in May or June ; maritima is found in the maritime regions of the British Isles, and is widely distributed through the north temperate and arctic regions ; it is quite a dwarf plant, and bears pretty blue flowers ; in some places it is called the Oyster Plant. Mertensia paniculata, i| feet, blue, July, North America ; pul- monarioides (Virginian Cowslip), i| feet, blue. May, North America ; and sibirica, i| feet, blue. May, Siberia, are other good kinds. Mesembryanthemum (Fig Marigold). — Trailing or bushy plants with succulent leaves, and often showy flowers, are found in Mesem- bryanthemum (Natural Order Ficoideae). They are natives of South Africa and require the sunniest possible position. Few kinds are thoroughly hardy even in the South of England, although in the milder parts of Cornwall a good many can be grown as ordinary rockery plants, and Mr. Dorrien Smith cultivates nearly a hundred kinds in his famous garden at Tresco Abbey in the Scilly Islands. There they are planted out upon rockwork, and provide a most brilliant display during summer. The Common Ice Plant, crystallinum, is one of the hardiest kinds : it is of annual duration, seeds being sown in warmth in February or March, and the young plants grown in pans or boxes to be planted out in May. Growth is very rapid, and NEPETA MUSSINI. A FREE- FLOWERING PLANT A PRETTY ALPINE (NOCCAEA ALPINA NEMESIA STRUMOSA. A BKAUTIKUL ANNUAL WHITE TRUMPET DAFFODIL (NARCISSUS LADY OF THE SNOWS) " MEUM 287 it may be planted in borders or upon walls or rockwork ; its chief attractions are the cool-looking leaves and glandular stems and foliage, which give the plants a jewelled appearance. The flowers may be red or white, but are not so showy as those of other kinds. Mesem- bryanthemum cordifolium variegatum is often grown for carpet bedding, its heart-shaped leaves being prettily variegated with gold. It is a perennial plant, and cuttings are rooted in August under glass, and kept in pots until January, when they are potted singly. Growth is rapid, and the points of the shoots are removed on several occasions during spring and used for cuttings. The young plants are put out with other bedding plants during late May and early June. Mesem- bryanthemum tricolor, or pyropeum, as it is sometimes called, is one of the Fig Marigolds ; it is an annual plant of bushy habit, growing freely from seeds sown under glass in March or out-of-doors in April. The flowers are an inch across, and various shades of purple, rose and white in colour. Other kinds, such as edule (yellow), albidum (white), floribundum (red), roseum (rose), spectabile (red), and vio- laceum (purple), may be rooted from cuttings under glass in August, and be kept in a sunny greenhouse throughout winter to plant on the rockery or in a sunny border in May. Meum [Baldmoney or Spignel). — The only kind commonly grown is Meum athamanticum (Natural Order Umbelliferae). It is a very pretty herbaceous plant, about 12 inches high, and is found wild in many parts of Europe, including the British Isles. It is of neat growth and available for border or rockery, where its finely-cut leaves and white flowers during early summer render it a conspicuous object. It is quite hardy, and thrives in ordinary garden soil, and is easily increased by division in February and early March. Michaelmas Daisy. — {See Aster.) Michauxia. — This is a small but attractive group of the Bell- flower family (Campanulaceae). Two species may be grown, cam- panuloides and Tchihatchefhi, both natives of Asia Minor. At their best they rank amongst the most stately and beautiful of herbaceous plants, but are rather difficult to manage and the best results cannot be looked for with any degree of regularity. Although they may con- tinue to live for three or four years, like the Foxglove, they are usually grown as biennials, seeds being sown during the summer of one year to produce plants that will flower in July of the succeeding year. It is wise to sow the seeds in pots or boxes under glass, and to grow the young plants in a frame until they are well established. Some of them should then be planted out in light, well-drained loam, and the remainder kept in a frame to put out in spring. As the plants 288 THE BOOK OF HARDY FLOWERS are a little tender, a well-sheltered but not heavily shaded position is desirable. Campanuloides produces large branched inflorescences, 3 to 4 feet tall, and bears large, bell-shaped , white blossoms, which are shaded on the outside with purple. Tchihatcheffii is a rather more vigorous plant, which also bears white flowers. In the event of dry weather being experienced in May, it is wise to mulch the plants with well-rotted manure. Michelia.— Trees or shrubs belonging to the Natural Order Magnoliaceae, and closely related to the Magnolias, with which they are sometimes included. At least three species are in cultivation, compressa, an evergreen bush or small tree from Japan ; fuscata, a Chinese bush ; and Champaca, a tree from the Malaya. The first two are grown out-of-doors in the South of England and Ireland, but have nowhere attained any considerable size. Michelia fuscata is a very interesting shrub, for in addition to being evergreen, it pro- duces flowers freely from the leaf axils during summer. The flowers are small for a Magnoliad, reddish within and buff without ; they are peculiar by being fragrant at certain times of the day, and whereas the scent can rarely be detected before eleven o'clock in the morning, it is very pronounced from that time until late afternoon. They should be treated as advised for the Magnolias, but need a little more peat in the soil. They, with the early flowering Magnolias, can be grown in pots or tubs for greenhouse decoration. Micromeria. — This is a group of herbs and woody plants be- longing to the Sage family (Labiatae). Many have little garden value, but a few can be grown for the herbaceous border or rockery. They succeed in any good garden soil providing it is moderately well drained. The herbaceous kinds can be increased by seeds or by division in February or March, seeds being sown in pots in a frame or greenhouse, and those of a shrubby character are propagated by cuttings in July and August, or by seeds in February or March. They require a little thinning and the removal of the points of the shoots in February. Micromeria croatica, of herbaceous habit, bearing rose and violet flowers in July, is native of Croatia ; graeca is a sub-shrub producing pink flowers in June, native of Greece, etc. ; rupestris, 12 inches high, has flowers in June, and is from Carniola ; and Juliana, 6 inches, with red blossoms in July, comes from the Mediterranean region. Mignonette. — {See Reseda.) Mi I la. — Bulbous plants belonging to the Lily family (Liliaceae), though now usually included in Brodiaea ; the kinds here mentioned are classed as Brodiaea by botanists- They are all moderately low- MIMULUS 289 growing plants, being usually less than 12 inches in height. In most cases the flowers are showy, and the flowering time depends largely upon whether the plants are grown under glass or out-of-doors. They are not very hardy, and can only be grown with success out-of-doors in the milder parts of the country, and even then it is wise to plant them in a border of well-drained, rather light soil at the foot of a wall. It is usual to obtain imported bulbs and to plant them in October or November about 3 inches below the surface of the ground. Where groups have been established, surplus bulbs or offsets may be removed to plant elsewhere, hfting being done as soon as the leaves die. The chief kinds are : biflora, 12 to 15 inches, white, May, Mexico ; Leicht- linii, 4 inches, white, autumn, Chilian Andes ; macrostemon, 12 inches, lilac, May, Buenos Ayres ; porrifolia, 12 inches, blue and white, summer, Chih ; and uniflora, 6 inches, white, February to April, Buenos Ayres. WTien grown under glass they should be placed several together in 5- or 6-inch pots, and be given full sun. Mimulus {Monkey Flower, Musk). — A number of very attractive herbaceous plants and sub-shrubs are found in Mimulus (Natural Order Scrophulariaceae). Perhaps the best known is the sweet-scented Musk (moschatus), a herbaceous perennial native of North America ; it is well known by reason of its viscid, fragrant leaves, its yellow flowers, and its habit of spreading rapidly by underground stems. If it finds a support the branches may grow 12 or 15 inches high, though it is usually much dwarfer. It is popular for growing in pots, and is usually one of the flowers grown in cottage windows. Good potfuls can be made up by dibbling half a dozen pieces, each with a few roots, into 5-inch pots filled with a compost of 3 parts loam to I part each of leaf-mould and sand, in March. The var. Harrisonii, with flowers an inch across, is also useful for pots, but is less hardy than the type. One form of Mimulus moschatus appears to have lost much of its fragrance, and when patches are being planted care should be taken to secure the fragrant kind. Mimulus luteus, also from North America, is another popular Musk ; it is very hardy, and suitable for planting in moist soil about the margins of lakes or streams. Under favourable conditions it becomes naturalised, and is very effective over a considerable period in early summer by reason of its profusion of yellow blossoms which are borne on stems 12 to 18 inches high. It is easily raised from seeds sown in light soil as soon as ripe or kept in a cool room and sown in spring ; the var. alpinus, also known as cupreus, is very distinct by reason of its large flowers, which are heavily spotted with brown. By crossing it with the other variety of luteus, which is variously called guttatus T 290 THE BOOK OF HARDY FLOWERS and variegatiis, a handsome race of hybrids has been obtained which are remarkable for their large, handsome, spotted flowers. As a rule, the ground colour is white, cream, or yellow, with large irregular- shaped blotches of brown or reddish-brown. These hybrids are known under the common name of Monkey Musk, and are very popular for summer bedding. Seeds are usually sown under glass during February or early March, and the seedlings are pricked out in pans or boxes for planting out-of-doors in May. They blossom throughout summer. In some gardens they are used for greenhouse decoration, and are grown in shallow pans. Mimulus cardinalis is a red-flowered perennial from North America, growing from 2 to 3 feet high and blooming during early summer. It can be grown in the herbaceous border and in pots. Mimulus Lewisii grows 9 inches high and bears rose-coloured flowers in August ; it is a native of North-West America. A very different plant is found in Mimulus glutinosus, for it is of shrubby habit. As it is not very hardy it must be grown under glass except in the milder parts of the country. It forms a bushy plant 4 to 6 feet high, and bears brownish flowers freely throughout a great part of the year. It is a native of California, and easily increased by cuttings during spring and summer. Plants which have bloomed for some considerable time should be cut back and allowed to form new growth from the lower parts of the shoots during early spring. Mina. — Mina lobata is the only species of this group of the Bind- weed family (Convolvulaceae), and it is now included in Ipomoea, under the name of Ipomoea versicolor. It is, however, so well known in gardens as Mina lobata that the name is retained here. It is a climbing plant with showy crimson and j^ellow flowers, a native of tropical America, and of annual duration. Seeds may be sown in pots under glass in February, the young plants being put out in good soil in May, or the seeds can be sown in late March where the plants are to bloom. It may be used for covering fences or trellises, or be given a circle of Birch branches over which to climb. Vigorous plants bloom from June onwards for two or three months. Mirabilis {Marvel of Peru). — Showy herbaceous perennials be- longing to the Natural Order Nyctaginaceae. Mirabilis Jalapa, a tropical American species, is the best known. In two years it forms a plant i^ to 2 feet high, and nearly 3 feet across, producing its flowers for a considerable period from the end of May onwards. Red, white, yellow, and lilac flowers are borne by different plants, whilst red and white or striped blossoms may be found on the same plant. In warm, well-drained soil in the warmer parts of the country it withstands MISCANTHUS 291 the cold of winter without injury, but in other places it is wise to lift the roots and place them in a frame covered by ashes or leaves for the winter. It can, however, be grown as an annual, for, from seeds sown in warmth in February, young plants can be obtained to plant out in May, and they will flower finely all summer. Seeds are produced freely and a few should be collected each year. Other good kinds are : longiflora, 2 to 3 feet, white, pink, or violet, summer, Mexico ; and multiflora, i| feet, crimson-purple, July and August, California. When a position in full sun, in a border at the foot of a wall can be provided, these plants are especially attractive. Miscanthus. — Vigorous and decorative herbaceous plants are found in these members of the Grass family (Gramineae). They are desirable for isolated clumps in conspicuous positions, but are specially suitable for moist places such as the bank of a lake or stream, and are pecuHarly adapted for associating with Bamboos. Rich soil must be provided, and when preparing for planting it is a good plan to add cow manure when the ground is light or horse manure when it is heavy. Established plants also benefit by a surface dressing of decayed manure each spring, and they appreciate an occasional applica- tion of liquid manure. Plants which are not growing near water must be kept moist at the root during dry weather. Propagation is by division of the clumps in March or early April. The best kinds are : japonicus, 3 to 6 feet, native of Japan ; its var. variegata has silver variegated leaves, whilst zebrina has leaves mottled with gold ; sac- charifer, also from Japan, grows 12 feet high, with glaucous leaves ; while the Chinese and Japanese kind, Sinensis, is a very graceful, green-leaved plant between 3 and 4 feet high. All should be cut down before new shoots commence to grow in spring. Mistletoe. — (See ViscuM.) Mitchella {Partridge Berry). — Mitchella repens (Natural Order Rubiaceae) is a creeping plant from North America, and is suitable for a position in the rock garden, its attractions being the pretty, white, purple-flushed, fragrant blossoms which appear in summer, the bright red berries in autumn and the evergreen leaves in winter. Rather light peaty soil and a semi-shaded position should be pro- vided. Propagation is by division in February or March and by seeds sown about the same time in light soil in a frame or greenhouse. It can be associated with the dwarf Gaultheria with satisfactory results. Mock Orange. — {See Philadelphus.) Moltkia petraea. — This very pretty little shrub belongs to the Borage family (Boraginaceae), and possesses pretty rich bluish flowers. It is a native of Dalmatia, and forms a stiff bush 12 inches 292 THE BOOK OF HARDY FLOWERS to 2 feet high, which, when out of bloom, is rather suggestive of Lavender. The flowers, which open in June, however, at once show that it is quite distinct. It gives the best results in a sunny position in the rock garden, preferably in a crevice between stones or rocks. Loamy soil suits it, and increase is by seeds or cuttings. Except for the removal of the old flower-heads, pruning is unnecessary. Monarda {Horsemint, or Horsebalm). — Several showy and per- fectly hardy herbaceous plants are included in this group of the Sage family (Labiatae). They are natives of North America, and are characterised by fragrant leaves. All are amongst the easiest of plants to cultivate, for if planted in any good garden soil they spread rapidly and bloom profusely over a considerable period from early June onwards. Propagation is by division of the clumps any time during late autumn, winter, or early spring. It is unwise to leave plants more than two or three years in one position. When dividing the plants the outer parts should be chosen for replanting, for they are usually more vigorous than the centre. Monarda citriodora. Lemon-scented Balm, from North- West America, grows 2 feet high and bears pink flowers ; didyma, the Oswego Tea, is the best known kind ; it is i| to 2 feet high, and bears bright red blooms (the variety called Cambridge Scarlet is finer) ; fistulosa. Wild Bergamot, grows 2 to 4 feet high, and its flowers may be red or rose, its var. moHis is recognised by its hairy leaves. All bloom in summer. Monkshood. — {See Aconitum.) Montanoa. — Tender or half-hardy shrubs, members of the Daisy family (Compositae). They are only available for planting out-of- doors in the mildest parts of the country, but in many other gardens they can be grown out-of-doors during summer. Cuttings of young shoots root quite well if inserted in sandy soil in a closed frame in April or July. Plants in pots should be given a compost of 3 parts loam, I part leaf-mould, and i part sand. Those grown out-of-doors require well-drained, rather light loam. Montanoa bipinnatifida grows 3 to 4 feet or sometimes more in height, and bears yellowish flowers during summer, it is a native of Mexico ; tomentosa, 3 feet high, bears white flowers in September, it is also from Mexico. Both may be cut back well in February. Montbretia. — Bulbous plants belonging to the Iris family (Iridaceae). Though the name Montbretia is still kept up in gardens, these plants are now called correctly Tritonia. They are generally very showy, and blossom during July and August ; they give excellent results when planted, about 3 inches deep, in a well-drained border of light loamy soil which is moderately rich. The bulbs may be planted MORAEA 293 in autumn or not until February or early March ; most kinds can be allowed to remain undisturbed for several years. Offsets are pro- duced freely and they are usually used for increase of stock, although seeds sown as soon as ripe in a bed of sandy soil in a sunny frame produce flowering plants in the course of two years. Like other plants of South African origin, they require all the sun available, and it is little use planting them in shady places if they are to thrive really well. Montbretia aurea, 2 feet, yellow, and Pottsii, orange shaded red, are two of the best known kinds. Between them a hardy and vigorous hybrid has been raised, called crocosmiaeflora, 2 to 2| feet high, with orange-scarlet flowers, but there are also many more sorts, remarkable for their large and brightly-coloured flowers. Good ones are : America, orange-red ; Anneau d'Or, orange-yellow, purple base ; California, yellow and purple ; Congo, dark orange-red ; George Davison, golden-yellow ; Le Pactole, apricot ; Prometheus, orange and crimson ; Westwick, orange, maroon ring. Moon Daisy.— (5^6 Chrysanthemum.) Moraea. — The Moraeas are Iris-hke plants (Natural Order Iridaceae), natives of South Africa. They are not very hardy, but a few kinds thrive when exposed to full sun in a border of well- drained, hght loamy soil, at the foot of a wall for preference. They are increased by division of the clumps in spring. The hardiest kinds are iridioides, 6 to 12 inches, white, with brown or yellowish spots, summer ; and Spathacea, 12 inches, yellow, spring. A very fine green- house kind is found in Robinsoniana ; it grows 5 feet high, and has long and wide, strap-shaped, evergreen leaves and large inflorescences of white flowers. It is sometimes called the Wedding Flower. Morina. — This group of the Natural Order Dipsaceae is allied to the Teasel family and consists of a number of perennial herbaceous plants chiefly from the Himalaya. They are of vigorous growth and have usually large and ornamental leaves, and rather curious but attractive Thistle-like flowers. Their proper place is towards the middle or back of the herbaceous border, and they should be planted in fair-sized groups. During severe weather in winter it is well to cover the crowns with dry leaves and Spruce or other evergreen branches. They like good deep soil which is moist, but well-drained, and are increased by seeds sown in light sandy soil in a close frame as soon as ripe. It is wise to keep the young plants in a frame until they are at least six months old. Good kinds are : Coulteriana, 3 feet, yellowish, summer ; longifolia, 3 feet, purple or reddish-purple, summer ; persica, 3 feet, red and white. All are found in the Himalaya, but the last-named extends to Persia as well. 294 THE BOOK OF HARDY FLOWERS Morisia. — H3^pogaea is the only kind eivailablc for cultivation ; it belongs to the Wallflower family (Crucifcrae). This dainty little herbaceous plant is suitable for the rock garden, and grows scarcely 3 inches high, but forms a distinct rosette of pretty little pinnate leaves, from amongst which yellow flowers, about ^-inch across, appear on stout upright stalks during late spring and early summer. Although introduced from its home in vSardinia and Corsica as long ago as 1833, it is not very common ; it requires light soil, and should be given a position where it will be sheltered from excessive damp during winter. Increase is by seeds sown as soon as ripe and by de- taching side growths and inserting them as cuttings in pots of sandy soil in a closed frame in spring. It is especially attractive when grown in shallow pans to bloom in a cold greenhouse in spring. A few small pieces of sandstone should be placed between the plants when they are grown in this way. Morning Glory. — {See Ipomoea.) IVIorus {Mulberry). — Trees of considerable importance in their native countries and in other places where they have been introduced ; they belong to the Natural Order Urticaceae. There are three dis- tinct kinds : alba, from temperate and sub-tropical Asia, which is a very variable plant, and of which the Chinese have distributed numer- ous varieties ; nigra, the common Mulberry of our gardens, which has been in cultivation from time immemorial, and of which the native country is unknown ; and rubra, the Red Mulberry, of North America. The last-named is not sufticiently hardy for general cultivation, even in the South of England ; but the other two are both grown. Morus alba is cultivated in practically all silk-producing countries, for its leaves form one of the most suitable foods for silkworms. The American Mulberry is used for the same purpose, but is not considered to be so good as the white kind. Morus nigra, as is well known, is grown both as an ornamental and fruiting tree, and many fine examples are to be found throughout the Midlands and South of England. There is one objection to it as a lawn tree, for its fruits fall in quantities when ripe and are apt to stain children's and ladies' clotliing. It is very tenacious of life, and fine trees may often be found cooped between high walls in smoky towns. In fact, such a one exists and fruits annually almost within a stone's throw of the Guild- hall in London. The Mulberries like well-drained loamj^ soil, are easily increased by cuttings in autumn, and only require sufficient pruning to keep the trees in shape. That can be done during summer. Mountain Ash. — {See Pyrus.) MUEHLENBECKIA 295 Muehlenbeckia.— This group (Natural Order Polygonaceae) is made up of a number of shrubs of erect or climbing habit, except Muehlenbeckia axillaris, which is of dwarf, prostrate growth. They are natives of New Zealand, Austraha, the Solomon Islands, and South America. Some are hardy in the South of England, and those are the only ones that demand attention. The dwarf kind, axillaris, may be planted on the rockery ; adpressa, complexa, and varians are climbers with an abundance of slender growths clothed with tiny dark leaves, the flowers are small and yellowish. They must only be planted where they can have plenty of room and should be placed at the foot of a large bush over which they may ramble at will. In- crease is by cuttings. Plant in ordinary garden soil and prune in spring to keep within bounds. Mullein. — {See Verb.\scum.) Musa {Banana). — The Banana belongs to the Ginger family (Scitamineae), and two kinds are sometimes grown for the outdoor garden in this country. They are Basjoo, a native of Japan, and Ensete, from Abyssinia. Musa Basjoo grows lo or 12 feet high, and is hardy in a few of the most favoured parts of Cornwall ; it has been grown for many years in gardens in Falmouth and also in the Scilly Islands. Elsewhere it must be kept in a cool greenhouse for the greater part of the year, but can be placed out-of-doors in summer. At its best it is seen with a stout stem surmounted by leaves 3 to 4 feet long and 7 to 9 inches wide ; the flowers are not very ornamental, and the stems die after the death of the flowers or after perfecting seeds. Constant renewal of stems is, however, going on from the rootstock, and stems in all stages of development may be found on a clump. It is not a very satisfactory plant, as the leaves are easily injured by wind. It requires rich soil, and is increased by division of the clumps in spring. Musa Ensete is also grown now and then in Cornish gardens, but, as a rule, it is planted in large pots or tubs and used for sub-tropical bedding in summer, spending the rest of the year under glass. When planted out in rich soil in a greenhouse it forms a magnificent specimen, with a stout trunk 10 or 12 feet high and 12 or 15 inches through, surmounted by an immense head of leaves, each one of which may be 12 feet in length and 2 feet wide. The leaves of pot-grown plants are smaller, but very ornamental. Unfortunately, they are easily injured by wind, and when placed out-of-doors often look very ragged before the end of summer. This species does not produce suckers, but dies after seeding. Propagation is thus entirely by seeds which are imported. They should be sown in loamy soil in warmth as soon as received. 296 THE BOOK OF HARDY FLOWERS Muscari (Grape Hyacinth). — A considerable number of very pretty and easily grown bulbous plants are found in Muscari (Natural Order Liliaceae). They are widely distributed through Southern Europe and Asia Minor and accommodate themselves very well to conditions in the British Isles, growing and flowering well, even where the soil is poor. The flowers are usually some shade of blue, though a few bear purple, yellow, or white flowers. All are dwarf, the tallest being about 9 or 12 inches high ; others, however, rarely grow more than 6 inches, whilst some are but 3 inches high. The weaker kinds should be planted in a border where they can be readily looked after, but some are excellent for carpeting beds of shrubs. One of the best for this purpose is conicum, native of Europe, and often called Heavenly Blue ; it grows 6 inches high and bears its spikes of rich blue flowers freely in April. Very effective displays can be made by carpeting beds of white-flowered shrubs, such as Magnolia stellata or Amelanchier Canadensis oblongifolia, which bloom at the same time, with this plant. It increases with great rapidity both by forming new bulbs from the old ones and from self-sown seeds. Other good ones are : botryoides, 6 inches, blue, April, Italy, with its vars. album, white and pallida, pale blue ; comosum, 6 inches, blue, April, Southern Europe (the var. monstrosum, 9 inches, has curious but ornamental, malformed, pale blue inflorescences of large size). Muscari commuta- tum, 6 inches, bears blue flowers in April and is native of Italy ; grandifolium, 9 to 12 inches, is dark blue, its habitat is unknown ; micranthum, 6 inches, bears violet flowers in April, its habitat, too, is unknown ; moschatum grows 9 inches high and has blue flowers in April, it is native of Asia Minor (the var. flavum is yellow) ; racemosum (Starch Hyacinth), 3 to 4 inches, has blue flowers in April and is native of Europe. All should be planted as early in autumn as possible, for they soon begin to form new roots. Musk. — {See Mimulus.) Myoeotidium nobile {Chatham Island Forget-me-not). — This, which belongs to the Borage family (Boraginaceae), is a fine herba- ceous plant from the Chatham Islands. It is one of the most beau- tiful of all hardy plants when seen at its best, for it forms large, glossy, evergreen leaves 12 to 18 inches high, from amongst which, during late spring and early summer, stout inflorescences appear which bear large and beautiful blue Forget-me-not-like flowers well above the leaves. Unfortunately it is difficult to grow and only gives really good results in a few localities. It appears to thrive most satisfactorily in the mild and moist climate of the south-west counties within a comparatively short distance of the coast. There, in borders, often MYOSOTIS 297 at the foot of a wall, it is found in rude health and flowering magni- ficently, giving the happy owners the idea that it can be grown as easily as a Cabbage, whereas a few miles away it may fail entirely. Propagation is by seeds sown as soon as possible after they are ripe, and by division of the clumps in spring. It has been noted in first- rate condition in Cornwall, planted in loamy soil. It has been tried in cold frames in some places, with little success, however. Myosotis {Forget-me-not). — Annuals, biennials, and perennials are included in this familiar group of the Borage family (Boraginaceae). Some are distinctly alpine plants, and others are found in woods, grassland, and marshes at low elevations, several being natives of the British Isles. All are easily raised from seeds sown as soon as ripe, or they may be kept until the following May. Seeds of the com- moner kinds can be sown out-of-doors, but those of rare sorts should be sown in pots of sandy soil in frames. Com- mon Forget-me-nots are excellent for undergrowth for thin shrubberies, beds, or borders, and should always be in- cluded amongst spring bedding plants, but rare kinds give the most satisfactory results when planted in the rock garden. In most cases the flowers are a delicate shade of blue, but there are varieties with white and rose Hewers. Myosotis alpestris is a very beautiful kind from the Swiss Alps ; it forms dense rosettes of growth and produces inflorescences 3 to 6 inches high of charming blue flowers in spring. It suffers a little from damp in winter, and should be planted on the rockery in gritty soil amongst small bits of sand- stone ; the var. albus has white flowers, whilst Victoria is a garden kind with pretty blue flowers. Myosotis azorica is a very beau- tiful but rather tender perennial from the Azores ; it grows 6 to 9 inches high, and bears rich blue flowers. Plant in a well-drained position in the rock garden. Myosotis dissitiflora is the Common Early- flowering Forget-me-not, an excellent plant for naturalising, and its varieties for spring bedding. Seeds are sown in May or June to produce flowering plants for the following summer. Good garden varieties are : Blue King, deep blue ; White Queen, white ; Princess THE GRAPE HYACINTH (Muscari) 298 THE BOOK OF HARDY FLOWERS Rose, rose ; Blue Pyramid, blue ; Star of Love, ?)luc. Myosotis palustris is the Water Forget-me-not, a pretty blue-flowered plant ; repens is a dwarf, blue-flowered kind, native of Britain ; and sylvatica is the Common Wood Forget-me-not of the British Isles. Myrica. — A group of hardy shrubs, mostly from North America, but one kind, Myrica Gale, the Boy Myrtle or Sweet Gale, is found throughout the Northern Hemisphere, and is a familiar object in boggy land in the British Isles. Myrica cerifera, the Wax Myrtle of the United States, is so called by reason of its fragrant leaves and a waxy exudation from the fruits. Myrica californica is the Cali- fornian Wax Myrtle. Perhaps the most attractive plant is the North American Myrica asplenifolia, which has elegant pinnate leaves ; it is, however, difficult to grow if not given moist peaty soil. Other kinds do better in the ordinary garden, but are best adapted for boggy land. Increase is by seeds and no regular pruning is needed. Anyone who has to deal with wet peaty land at a considerable eleva- tion would do well to remember the hardier kinds of Myrica. These plants belong to the Natural Order Myricaceae. Several tender species are natives of Africa and Asia. Myricaria germanica, belonging to the Tamarisk family (Tama- ricaceae), is a native of Europe and other countries, and is closely allied to the Tamarisk. It has sometimes been called Tamarix germanica, but is a distinct shrub. Growing at least 4 or 5 feet high, it is noticeable by reason of its graceful growth and tiny leaves, and by its terminal panicles of pinkish or sometimes almost white flowers in June. Like the Tamarisks, it may be planted in exposed places near the sea, but also thrives inland. Plant in ordinary garden soil, increase by cuttings of ripened shoots inserted out-of-doors in October, and cut back the previous year's shoots in February. Myrrhis (Sweet Cicely). — Myrrhis odorata, a native of the British Isles, is the only member of this group (Natural Order Umbelliferae) available for our gardens. It was at one time grown as a pot-herb and for salads, but is rarely now used for that purpose. It is, how- ever, sometimes grown for its aromatic foliage ; it grows 2 to 2^ feet high and produces white flowers in May. Any kind of soil suits and increase is by seeds or division during early spring. Myrsine. — Several shrubs from South Africa, Australia, Mexico, India, and New Zealand are comprised in Myrsine (Natural Order Myrsinaceae), but they are not of sufficient interest to warrant their being grown under glass, although one kind, africana, is a useful ever- green for out-of-doors in the South of England. It is a low-growing bush of rather attractive appearance, with small dark green foliage MYRTUS 299 and tiny brownish flowers in spring. A position in the rock garden suits it, whilst propagation is by cuttings of half- ripe shoots in summer. Pruning is unnecessary. IVIyrtus (Myrtle). —This is an important and popular group of shrubs (Natural Order Myrtaceae), for it includes the Common Myrtle. The various kinds are distributed through New Zealand, Australia, Brazil, Peru, Chili, Southern Europe, etc., those from the cooler countries being of the greatest use in the British Isles. Though not generally hardy, several kinds give excellent results in the south and west counties, whilst further north they may be grown against walls, or in tubs to stand out-of-doors in summer, being kept in a cold green- house or outhouse in winter. In many instances the white flowers are exceedingly beautiful, whilst they find a capital setting amongst the evergreen leaves. They thrive in loamy soil to which a little peat or leaf-mould has been added, and are increased by means of cuttings of half-ripe shoots inserted in sandy soil in a closed and warm frame during summer. Pruning is sometimes required to shape the bushes and to rejuvenate those which are becoming thin and leggy ; this should be done in April. Myrtus communis, the Common Myrtle of Southern Europe, is a fragrant-leaved evergreen with white flowers and black fruits ; it grows quite well against a wall about London. The var. tarentina has neat growth and small leaves ; it is popular for mixing with flowers at weddings. Myrtus Luma is a handsome evergreen from Chili, and is one of the chief attractions of Devon and Cornish gardens in September when covered with its white flowers. Myrtus Ugni is also from Chili ; it grows well in the gardens of the south-west. Other useful sorts are : bullata, myrsi- noides, and obcordata. Nandina domestica. — This is an interesting shrub, from China and Japan, belonging to the Barberry family (Berberidaceae). Though rather tender, it may be grown with success out-of-doors in the south and west counties of England and in Ireland. The most satisfactory position for it is a sheltered corner at the foot of a south or west wall, where the stems can become thoroughly ripened. Its attractions are the large pinnate leaves which are produced in clusters about the points of the branches, and its large panicles of white or pink flowers in July. Many forms are recognised by the Chinese and Japanese, with whom it is very popular. Here it has never been planted extensively. Plant in ordinary garden soil, and increase by seeds or division of the clumps. Prune away old shoots when necessary. Narcissus (Daffodil). — The Narcissi, which belong to the Natural Order Amaryllidaceae, and are native of various European countries, 300 THE BOOK OF HARDY FLOWERS form an extensive group of popular flowers. Apart from their great value for the embellishment of the outdoor garden, they are also largely grown in pots or bowls for flowering under glass. Exhibitions of Narcissi are now commonly held during spring, and large sums are often obtained for bulbs of the choicer varieties. It does not, how- ever, follow that these are the best for garden display, for many of the cheapest kinds are unsurpassed for this purpose. The soil best suited to Narcissi in general is sandy loam that has been enriched with some manure a year or so previously. Fresh manure ought never to be used when planting. The best substitute is bonemeal, a little of which should be scattered in the soil beneath the bulbs, or if a bed or border is being planted, the bonemeal may be scattered on the surface at the rate of 6 ounces to the square yard, and dug in. Most amateurs plant the bulbs of Narcissus too near the surface ; there should be 3 inches of soil over the largest ones and 2 inches or so over those of medium size, while the smallest ought to be covered by at least i inch of soil. If possible, the bulbs should be planted not later than September, though those who grow to produce the finest blooms for exhibition plant in July and August. In the outdoor garden Narcissi are planted in various ways. Frequently they are put in beds that have contained tender plants during the summer months, either alone or grouped with other spring flowers. In masses or clumps in the front of shrubberies they are seen to advantage, and there may remain undisturbed and thus become established ; whereas in beds they must be cleared away to make room for the tender plants in summer. In the latter case the bulbs must be carefully lifted in May, disturbing the roots as little as possible, and laid in some out-of-the-way spot until the leaves have turned yellow ; they are then taken up, cleaned, and stored ready for plant- ing in late summer or early autumn. Another purpose for which many kinds of Narcissus are adapted' is for planting in grass that is not often cut, and where they may come up year after year. The grass must not be cut until the leaves have died away, or the bulbs will deteriorate quickly. In planting bulbs in turf, one needs to be careful to arrange them as naturally as possible; straight lines must be avoided. A good plan is to scatter the bulbs broadcast, and plant them exactly where they lie, subsequently adding a few small irregular groups here and there on the margin. Narcissi are, according to the classification of the Royal Horti- cultural Society, grouped in eleven divisions, and the length of the cup or trumpet portion of the flower is the chief factor in their classification. A NEW ZEALAND DAISY BUSH (OLEARIA STELLULATA, NARCISSUS 301 First, there are the Trumpet Daffodils, in which the central trumpet is as long as, or longer than, the perianth or spreading por- tion of the flower. This section is subdivided into White, Yellow, and Bicolor Trumpet Daffodils, according to their colour. The following are some of the best : Yellow — Admiral Togo, Emperor, Glory of Leyden, Golden Spur, Henry Irving, King Alfred, Lord Roberts, Maximus, Minimus (a tiny Daffodil), Obvallaris, P. R. Barr, Van Waveren's Giant. White — Albicans, Cernuus, Madame de Graaff, Lady of the Snows, Mrs. Thompson, Pallidus Praecox, Peter Barr, W. P. Milner. Bicolor — Apricot, Duke of Bedford, Empress, Glory of Noordwijk, Grandis, Horsfieldii, J. B. M. Camm, Mrs. Walter Ware, Princeps, Victoria, Weardale Perfection, William Goldring. In the incomparabilis or chalice-cupped Narcissi, the cup is not less than one-third of the length of the perianth segments, but never equal in length. A few of the best varieties are : Autocrat, Beauty, Blackwell, C. J. Backhouse, Frank Miles, Gloria Mundi, Lucifer, Orangeman, Red Star, Sir Watkin, Stella Superba, White Wings. In the section known as Barri (which includes varieties formerly classed as Burbidgei), the central cup is of a length less than one- third of the rest of the flower. Some of the best are : Agnes Barr, Albatross, Beacon, Conspicuus, Crown Prince, Dorothy E. Wemyss, Falstaff, Flora Wilson, John Bain, Seagull. The Leedsi section comprises those varieties of chalice-cupped (incomparabilis) and star Narcissi (Barri), which have white or creamy- white perianth, and a white, cream, or otherwise pale cup. Among the best are the following : Ariadne, Bianca, Duchess of Westminster, Elaine, Katherine Spurell, Mary Magdalene de Graaff, Minnie Hume, Mrs. Langtry, Peach, Salmonetta, Waterwitch, WTiite Lady. Those kinds known as Triandrus hybrids have been derived from Narcissus triandrus ; they are distinguished by reflexed or spread- ing perianth and long, narrow cup, and usually have more than one bloom on a stem. Triandrus albus is the lovely Angel's Tears Daffodil, suitable for gritty soil in the rock garden or for growing in flower pots ; triandrus calathinus has much larger blooms. Queen of Spain is a charming Narcissus of clear yellow colour, suitable either for the rock garden or pots. A few of the kinds raised during recent years are : Agnes Harvey, white ; Cingalee, cream, with more deeply coloured trumpet ; J . T. Bennett Poe, cream, with primrose trumpet ; and Little Queen, which is remarkable for the fact that the trumpet is white and the perianth pale yellow. 302 THE BOOK OF HARDY FLOWERS The Cyclamineus or cylamen-flowered Narcissi have reflexing perianth and long, narrow tube, and have been derived from Nar- cissus cyclamineus, a charming little flower of rich yellow colour- ing, the earliest of all the Daffodils to open. It likes a soil of loam and peat and a somewhat shady spot in the rock garden, while it is delightful for growing in flower-pots for the cold greenhouse. The Jonquil, and those Narcissi that have been raised from it, give the name to another section known as Jonquilla. The single yellow Jonquil is a favourite kind, for it is easy to grow, and has fragrant yellow blossoms late in the season or in early May. The Campanelle Jonquil, with very narrow leaves and fragrant yellow blooms, and odorus rugulosus, with sweet-scented flowers of similar colour, are others of this class. A particularly fine new sort is called Buttercup ; the bloom is of greatly improved form, and has some of the Jonquil scent. The Tazetta (Polyanthus or Bunch-flowered) Narcissi are great favourites both for out-of-door cultivation and for growing in pots and bowls. A few of the best are : Grand Monarque, white, pale yellow cup ; Grand Soleil d'Or, yellow, orange cup ; and Mont Cenis, white, with yellow cup. The favourite variety for forcing, the Paper White Narcissus, belongs to this group. The Poetaz Narcissi, raised by cross fertilisation between the Poet's and the Bunch-flowered kinds, are in this class and comprise some splendid kinds, such, for instance, as Aspasia, white, with yellow cup ; Elvira, white, with orange-yellow cup ; Jaune a Merveille, pale yellow, with deep yellow cup ; and Triumph, white, with yellow cup. The flowers are in bunches on tall, stout stems. The Poet's Narcissi (Poeticus) form another group ; they have usually a white perianth and a small, flat crown, in the newer varieties often of vivid colouring. Among the large number now existing some of the best are the following : Almira, Cassandra, Epic, Homer, Horace, Lycidas, and Virgil. The old Poet's Narcissus and its var. poetarum, which has an orange-red crown, are still invaluable ; they are among the last of the Narcissi to bloom. • The next group consists of Double Daffodils, and contains, among others, the Old Double Yellow kind (Tclamonius plenus), Butter and Eggs, Codlins and Cream, and Orange Phoenix. The last group comprises various species of Narcissus, many of which are very charming. The Hoop Petticoat Daffodil (Narcissus Bulbocodium and varieties), which are delightful for pots, or may be grown in loam and peat in the rock garden ; juncifolius (the small Rush-leaved Daffodil), with dainty little yellow flowers ; serotinus. NARTHECIUM OSSIFRAGUM 303 that bears quite small blooms, white, with yellow cup, in October ; and viridiflorus, the green Narcissus, which has little green blossoms in late autumn. Prominent among the newer kinds are those known as Engle- heartii Narcissi, which are distinguished by broad, spreading, perianth segments and flat, large crown, often of bright colouring. The larger varieties are now classed as incomparabilis or chalice-cupped Narcissi. Narthecium ossifragum (Bog Asphodel). — This pretty plant, which belongs to the Lily family (Liliaceae), and is native of Europe (including Britain), thrives only in boggy spots and where it is fully exposed to the sun. It produces grass-like leaves, while the yellow flowers are borne towards the end of the summer on stems about 12 inches high. Propagation is readily effected by division in early spring. Nasturtium {Water Cress) — The only species to mention is the Common Water Cress (Natural Order Cruciferae), a well-known British plant which will thrive in boggy spots. In many districts it is much cultivated for the sake of its tender shoots, which are largely eaten as a salad. It is increased by cuttings, division, or by seeds in spring. Nasturtium. — {See Tropaeolum.) Navel Wort. — {See Omphalodes.) Neillia is a group of shrubs closely allied to Spiraea ; they belong to the Rose family (Rosaceae). A number of the species are coarse- growing shrubs, but a few are of graceful appearance. The best- knov/n kinds bear white flowers in May, but there are one or two new Chinese sorts which bear pink flowers. Neillia opulifolia is perhaps the best known ; a native of North America, it grows from 6 to 9 feet high ; there is a golden-leaved form called lutea, which is valued for its yellow foliage. Neillia capitata and NeilHa Amurensis are other vigorous sorts suitable for the back of a shrubbery. NeilHa Sinensis, from Central China, is a new shrub of graceful growth with pink flowers ; thyrsiflora, from the Himalaya, is also a graceful bush, but not very hardy. Plant in ordinary garden soil and cut out old branches sometimes. Increase by cuttings in summer. Nemesia. — The chief interest in the members of this genus (which belong to the Snapdragon family, Scrophulariaceae, and are natives of South Africa) is centred not in the half-dozen species or so, but in the splendid race of hardy annuals that have been obtained from them. The kind that has played chief part in the production of the modern varieties is Nemesia stnimosa, of which the flowers are of yellow or orange tint. New varieties with blooms in shades of 304 THE BOOK OF HARDY FLOWERS blue, white, yellow, orange, pink, carmine, scarlet, and crimson, can be obtained. Those with the larger flowers grow 12 inches or more higli. but there is a dwarf strain with smaller blossoms, borne in pro- fusion, the best being Blue Gem of Forget-me-not blue. For early flowering the seeds of the Nemesia are usually sown under glass in March, and the young plants put out when danger from frosts is over. The possession of a glasshouse is not necessary for the cul- tivation of these beautiful flowers, as seed sown out-of-doors late in April germinates freely, and produces a wealth of blossom in July and August. Seedlings of the ordinary varieties may be put 6 or 8 inches apart, the dwarf kinds being somewhat closer. The Nemesias are not of vigorous growth, and are useful, for example, for carpeting the ground beneath tall plants, such as Standard Roses. They are seen at their best in well-dug sandy loam, and in a sunny position. Nemophila {Californian Blue Bell). — One of the most delightful of our hardy annuals (Natural Order Hydrophyllaceae) is Nemophila insignis, which was introduced from California as long ago as 1822. It is of a free, spreading growth, and a succession of blossoms is kept up for a long time. The ordinary kind has blue flowers with white centre, but there are several varieties. Another species, commonly known as Nemophila atomaria, but which botanists tell us should be Menziesii, has spotted flowers ; so, too, has the nearly allied Nemo- phila maculata. The Nemophilas may be sown in autumn for May flowering, and in spring for July blossom. Like most Californian annuals they need hght soil and a sunny spot ; they may be planted in a bed to themselves, or used as an edging or carpeting. Nepeta (Catmint). — Some of the Nepetas are little more than weeds, though a few kinds are attractiv^e. They belong to the Sage family (Natural Order Labiatae). Included among the best are Nepeta Glechoma variegata, a variety of our own British Ground Ivy, of which the leaves are margined with white ; it is a pretty creeping plant for moist spots in the rock garden. Nepeta macrantha is a good border plant that reaches a height of about 3 feet, and bears spikes of deep lavender- blue flowers from July to September. The most useful of all is Nepeta Mussinii, from the Caucasus, which forms a much-branched tuft about 18 inches high ; the leaves are greyish and fragrant. A continuous display of pretty pale-blue flowers is kept up throughout the summer. The last to mention, Nepeta spicata, is a pretty blue-flowered perennial, from the Himalaya, that reaches a height of about 2 feet and blooms during summer. The Nepetas named are perennial and will thrive in ordinary garden soil, and can be readily increased by division in autumn. Nepeta NEPHRODIUM 305 Mussinii is well suited for planting on an exposed sunny part of the rock garden, for there the grey foliage takes on its finest colouring. Nephrodium {Male Fern). — Most of the Nephrodiums (Natural Order Filices) are natives of the Tropics, and therefore require the temperature of a warm greenhouse for their successful cultivation. The finest of all the hardj^ kinds is our own native Nephrodium Filix- mas or Male Fern (often called Lastrea). It often forms quite a stem or trunk, from the apex of which the fronds are developed in a regular circular manner. Under cultivation many varieties have been raised, so that a selection of the varieties of Nephrodium Filix- mas alone is sufficient to form an interesting fernery. Some of the crested kinds are very fine. Nephrodium dilatatum (Prickly Buckler Fern), which is more spreading than the Male Fern, with triangular shaped fronds ; Goldieanum, with spreading bright green fronds ; montanum, a pretty mountain species ; and Thelypteris, with slender creeping stems, are other kinds. Nephrodium Thelypteris is known as the Marsh Shield Fern, and needs a shady, moist, somewhat boggy spot. All the others thrive in shade or half shade in soil with which leaf-mould has been freely mixed. These ferns may be increased by division during winter. Nertera depressa (Bead Plant). — A charming little plant (Natural Order Rubiaceae), native of the mountainous regions of South America. It forms a dense tuft of creeping shoots, clothed with tiny, ovate, fleshy leaves ; the flowers, which appear in summer, are insignificant, being of a dull greenish colour, but they are succeeded by berries which, when ripe, are of beautiful orange tint, and last in beauty for a considerable time. Nertera is more generally grown in pots or pans than in the open ground, but it will thrive in a partially shaded spot in the rock garden provided it is protected from wet in winter. It is readily increased by division carried out in spring. Until the plants are nicely rooted they should be kept in a slightly warm green- house, but subsequently a semi-shady airy frame is the place in which fruits are likely to form. Neviusia alabamensis, sometimes called Snow in Summer, by reason of its profusion of fluffy white blossoms, is a native of Alabama and belongs to the Rose family (Rosaceae). In ordinary garden soil ft grows into a wide-spreading bush 3 to 4 feet high. The flowers are borne in profusion during May or June, and out-of-doors are white or greenish-white in colour. When forced, however, they are pure white, and a well-flowered bush is a charming object. Propagate by means of cuttings in July, and thin the plants after flowering, cutting away some of the older shoots, u 306 THE BOOK OF HARDY FLOWERS New Zealand Bur. — (See Acaena.) New Zealand Flax. — (See Phormium.) Nicotiana (Tobacco). — Some of the Tobaccos, which belong to the Natural Order Solanaceae, and are natives of South America, are grown for the sake of their handsome summer flowers, while others are remarkable for their large and striking foliage. They are usually looked upon as half-hardy annuals, though there is some doubt as to the correctness of this point of view. At all events, for the out- door flower garden they should be treated as such ; that is to say, the seed is sown in warmth early in March, and the young plants are potted and finally hardened off ready for planting out late in May. They need rather rich soil and a sunny situation. The best kinds are : afhnis (also known as alata), of which the long tubular white flowers exhale such a delicious perfume in the evening ; there are now many forms or varieties with colours ranging from white to violet and crimson, through various intermediate shades, all grow about 3 feet high. Nicotiana colossea and colossea variegata have huge leaves, and reach a height of 6 feet. Nicotiana Sanderae has deep rose or carmine flowers, and is about 3 feet high. Nicotiana sylvestris is of bold growth with large deep green leaves and pendent clusters of white flowers, 5 feet. Nicotiana Tabacum, interesting as yielding the Tobacco of commerce, is a handsome foliage plant, 4 to 6 feet high. Nierembergia.— Though several species of Nierembergia, which belong to the Potato family (Solanaceae), and are natives of South America, are known to botanists, there is only one kind in general cultivation, namely, Nierembergia rivularis, a pretty little trailing plant which, though reaching a height of only two or three inches, soon covers a considerable space. It should be grown in the rock garden, in loamy soil with which a little leaf-mould and sand are mixed. The comparatively large, erect, bell-shaped flowers are borne through- out the summer. A second kind is Nierembergia frutescens ; this, which is of a compact, somewhat shrubby habit, reaches a height of 18 inches, and bears pretty blue flowers. Nierembergia rivularis can be readily increased by division in spring, while frutescens should be propagated by cuttings put in sandy soil and protected by a frame in August; Nigella (Love in a Mist). — A charming class of hardy annuals, belonging to the Buttercup family (Ranunculaceae), and natives of the Mediterranean districts. Nigella damascena, known popularly as Love in a Mist and Devil in a Bush, has been long popular in this country. It grows from 18 inches to 2 feet high, and has finely- cut Fennel-like leaves, some of which surround the pale blue flowers. o w CQ 2 D W DQ < 2 < a, o w w o H C/3 H a. NOCCAEA 307 There is a greatly improved variety known as Miss Jekyll, of which the blossoms are of deeper colouring. There is also a white variety (alba). The only other species of any value in the garden is Nigella hispanica, with purplish-blue flowers. The Nigellas are quite hardy, hence seed may be sown in autumn for an early display, and in April for a succession thereto. They do not transplant readily, for which reason they should be sown where they are to flower. Noccaea [Hutchinsia). — Noccaea alpina is a pretty little Euro- pean plant somewhat like a small Iberis, belonging to the Wallflower family (Cruciferae). It needs a warm, sunny spot and sandy soil in the rock garden, and bears white flowers throughout the sum- mer. Noccaea petraea is a tiny plant of annual duration and of no particular value. Notospartium Carmichaeliae, belonging to the Pea family (Leguminosae), is a curious and rare bush native of New Zealand. Growing but a few feet high, it has curious slender rush-like branches, bearing dry-looking scales in place of leaves, but in June it produces a profusion of small Pea-shaped blossoms of a very pretty shade of pink. It can only be grown out-of-doors in the southern counties, and even then must have a sunny position. A place at the foot of a wall, where it can grow freely without being trained to the wall, is excellent. Give loamy soil and increase by seeds. Pruning is not required. Nuphar {Yellow Water Lily). — A genus of free-growing aquatics with yellow blossoms. They belong to the Natural Order Nym- phaeaceae, are widely distributed in north temperate countries, and are very nearly related to the Nymphaeas. Nuphar advena, the large Water Lily of America, is too vigorous for small spaces of water. The leaves, and the flowers which are yellow outside and reddish within, rise considerably above the surface of the water. Nuphar lutea may be looked upon as the European form of the preceding. Nuphar minimum, sometimes known as Kalmianum, being of far less vigorous growth, may be planted in small ponds. If there is suffi- cient soil or mud at the bottom of the water all that is needed in planting is to tie the plant to a brick or some other weight, and drop it in the water at the spot where it is to grow. The weight will soon cause it to sink into the mud, where, pushing forth roots of its own, it quickly becomes established. Planting is best done in the spring: Nuttallia cerasiformis. — This is the Oso Berry of California, belonging to the Rose family (Rosaceae), and one of our earliest flowering shrubs, for its blossoms often expand in February. It attains a height of 5 or 6 feet, and adds to its width fairly rapidly 308 THE BOOK OF HARDY FLOWERS by means of suckers from the rootstock. Male and female flowers are borne by different plants, and it is necessary to plant the two sexes together if a crop of the red Cherry-like fruits is desired. The flowers are white, but not very showy. Ordinary garden soil suits ; increase is by seeds or division of the clumps, and regular pruning is not required. IMymphaea {Water Lily). — The genus Nymphaea (Natural Order Nymphaeaccae) contains but few hardy species, but there are many varieties. Few phases of gardening have made so much advance in popular favour within the last decade or two as Water Gardening, and a great deal of this is no doubt owing to the numerous and many- coloured Water Lilies that have been raised. In nurseries where these beautiful Water Lilies are grown for sale, they are kept in pots for convenience of transit. When it is desired to establish them in ponds or spaces of water having a certain amount of soil at the bottom, the Lilies are usually planted in turfy loam in a loose, shallow wicker- basket that will easily decay ; the basket is merely to hold the soil in position until the plants are well-rooted. To prevent the plant from floating a few pieces of string should be run across from side to side of the basket to hold the roots in place. The months of April and May are the best times to plant. A suitable depth of water for Nymphaeas is from 12 inches to 3 feet, according to their vigour. A running stream is not suitable for them, for the water is too cold. Some of the most desirable Water Lilies are Nymphaea alba, the common White Water Lily ; Andreana, bright red ; candidissima plenissima, double white ; Carisbrookii, blush pink ; colossea, flesh- coloured ; Froebelii, deep crimson, passing to carmine-purple ; Glad- stonii, pure white, semi-double ; James Brydon, pink ; Marliacea chromatella, yellowish ; Marliacea ignea, carmine-red ; Marliacea rosea, bright rose ; Robinsoniana, violet-purple, shaded red ; sanguinea , bright crimson ; W. Doogue, deep pink ; and W. Falconer, ruby-red Less vigorous sorts suitable for small ponds and pools are : Candida, white ; Ellisiana, purplish ; Laydekeri fulgens, amaranth ; Lay- dekeri rosea, carmine-rose ; Laydekeri lucida, rose-red ; odorata, white, fragrant, and pygmaea, white, the smallest of all. Nyssa is a group of trees belonging to the Dogwood family (Cornaccae). The species are natives of North America, where they often occupy wet land, and are known under the common name of Tupelo. Their principal attraction here is the brilliant autumnal colouring of the leaves, and for this reason they deserve more ex- tended notice in the South of England. The two kinds most suit- able for the British Isles are : aquatica and sylvatica. Plant in moist OCIMUM 309 land, such as the bank of a lake or stream where the roots can enter the water, and choose a position exposed to south and west. Increase by seeds in spring and prune in summer to shape the trees. Oak Fern. — (See Polypodium Dryopteris.) Ocimum (Basil). — Annual or perennial plants belonging to the Sage family (Labiatae), few of which have any particular horticul- tural value. The best known is the Sweet Basil (Ocimum Basilicum), a well-known fragrant herb with white blossoms ; it is readily increased by means of seeds sown in spring. Oenothera {Evening Primrose). — An extensive group of plants (Natural Order Onagraceae), natives chiefly of North America. Some are annuals and others biennials, but the majority are of perennial duration. By far the best known is the common Evening Primrose (Oenothera biennis), of which the golden-yellow blossoms are so conspicuous towards the close of the day. Though some kinds are suitable for the rock garden they are not particular as to soil, and will thrive in sandy loam, provided they are in a sunny spot. The common Evening Primrose and some of the other strong-growing kinds are well suited to the wild garden or woodland. Oenotheras may be increased by seeds, division, or by root cuttings. Seeds should be sown in spring, division being practised and root cuttings taken in autumn. The chief kinds are : acaulis (also known as taraxacifoHa), with large white flowers on trailing stems throughout summer, and leaves like those of the Dandelion, 6 inches ; biennis, common Evening Primrose, 4 to 5 feet ; eximea (caespitosa), large white flowers in July and August, changing to pink with age, 12 inches high ; Fraserii (glauca), golden-yellow flowers all summer, 2 feet ; fruticosa major, deep yellow, June until autumn, 2 feet ; Missouriensis, with rich yellow blooms in summer, is a charming trailing plant for the rock garden ; ovata has 4-inch high tufts of narrow leaves and golden-yellow flowers from April to June ; pumila is a tiny plant, 4 inches high, with yellow flowers in summer ; speciosa bears satiny-white blossoms from June to September, 2 feet, and tetraptera rosea bears rose-coloured blooms all the summer, 12 inches high. The annual kinds of Oenothera are more commonly known as Godetia, and are described under that name. Olea (Olive) is a group of evergreen trees and shrubs (Natural Order Oleaceae), the most familiar of which is the Common Olive (Olea europaea). This is cultivated extensively in Southern Europe, South Australia, California, and elsewhere for the sake of the oil expressed from the pulp of the fruits. This oil is known as olive oil, and is used for cuHnary purposes, the manufacture of the higher grades 310 THE BOOK OF HARDY FLOWERS of soap, and other things. Pure ohve oil is very valuable, but it is often adulterated for minor uses. The Common Olive can be grown out-of-doors in Devonshire, Cornwall, and other places with a similar climate ; elsewhere it needs the protection of a wall. Plant in ordinary garden soil, increase by seeds or cuttings, and prune only to keep the bushes shapely. Plants grown for fruit in Southern Europe are often pruned into bush form to facilitate the collection of the fruits, and resemble bush Apple trees. Olea glandulifera, from the Himalaya, and verrucosa, from South Africa, may also be grown out-of-doors in the milder counties. The Common Olive is the host of several kinds of Mistletoe, one with red and another with yellow berries being effective in winter. Olearia (Daisy Bush). — ^This is an interesting and useful group of evergreen shrubs, natives of New Zealand and Australia, belonging to the Daisy family (Compositae). Only one species can be said to be genuinely hardy throughout the British Isles, but many may be grown in the south-west counties, and others thrive in selected situa- tions elsewhere. They are often called Daisy bushes by reason of their Daisy-like heads of flowers which are borne with considerable freedom during summer. They thrive in ordinary garden soil, prefer- ably rather light. Some kinds are increased by cuttings in summer and others by seeds. Pruning is usually confined to shaping the bushes and keeping them from outgrowing their positions. As a rule they stand severe pruning well, providing it is done in spring, April being a good time. Less severe pruning may be conducted after the flowers have fallen. The chief kinds are : Haastii, a New Zealand species, the hardiest of all and one of the most generally useful shrubs we possess ; it usually grows from 3 to 4 feet high, forming a shapely bush with little attention to pruning. The ovate leaves are deep green, about i inch long and thick in texture, and the white flowers appear with great freedom in July. It may be used for large masses, groups in shrub- beries, isolated specimens or hedges, either inland or fully exposed to sea air. Olearia macrodonta, from the same country, is a more vigorous bush, sometimes exceeding 6 feet in height ; its oblong leaves have prettily wrinkled margins ; it thrives fairly well in many parts of the country. Olearia stellulata is an exceedingly pretty little bush 2 feet or so high, with small greyish-green leaves, and bears a profusion of white flowers in May or June ; an excellent plant for the rock garden, or for a sheltered position elsewhere ; it may also be grown in pots for greenhouse decoration: Olearia argophylla, from Australia, is familiarly termed the Muskwood by reason of its Musk- THE COTTON THISTLE (ONOPORDON ACANTHIUM) THE MADEIRA ORCHIS (ORCHIS FOLIOSA) REST HARROW (ONONIS FRUTICOSA) THE PRICKLY PEAR (OPUNTIA) OMPHALODES 311 scented leaves ; it attains tlie dimensions of a small tree, but is only of value for the warmer counties. Other useful kinds for warm gardens are : compacta, Forsteri, insignis, nitida, nummularifolia, pannosa, and Traversii. Omphalodes [Navel Wort). — These attractive plants belong to the Borage family (Boraginaceae), and are natives principally of the Mediterranean region. Omphalodes linifolia is a charming little hardy annual, which is seen to advantage in a sheltered, partially shaded spot in the rock garden ; it is usually somewhat less than 12 inches high, and the neat white flowers are freely produced ; once established from seeds sown in spring it very often reproduces itself from self- sown seeds. Of the perennial species the best are cappadocica (corni- folia), from Asia Minor, with rich blue Forget-me-not-like flowers in early summer, 12 inches ; nitida, native of Portugal, with bright blue flowers from March to June, 12 inches ; verna, from Southern Europe, intense blue, May to August, 6 inches ; and Luciliae, from Greece, with glaucous leaves and lilac-blue flowers in June. The perennials need a sheltered position in the rock garden and well- drained sandy loam. The most difficult to grow is Luciliae, which needs gritty loam and half shade ; nitida ought to be kept in a frame during winter, for it is not very hardy. Seeds sown in autumn or spring afford a ready means of increase. Onoclea sensibilis. — A very pretty hardy fern (Natural Order Filices), native of North America, nearly related to the Royal Fern (Osmunda), and, like this, bearing its spores on separate fronds. It attains a height of 18 inches to 2 feet, and grows freely in good soil in a moist and moderately shaded spot. It is increased by division of the creeping rhizomes before growth recommences. Ononis {Rest Harrow). — Shrubby, sub-shrubby, or herbaceous plants from temperate climes, belonging to the Pea family (Legu- minosae). Ononis spinosa is the British plant which is known familiarly as the Rest Harrow ; it is a pretty half-shrubby kind with showy pinkish Pea-shaped flowers, and is found in dry pastures and sandy wastes near the sea throughout the country. One of the best of the shrubby kinds is Aragonensis, a dense bush i to 2 feet high, native of the Pyrenees ; its Pea-shaped flowers are golden and borne in pro- fusion during May and June ; it is a sun-loving plant, and excellent for an exposed position on the rockery. Propagate by cuttings or seeds and remove the old flower-heads after the flowers have faded. Ononis fruticosa and rotundifolia are showy shrubs with rather soft wood ; both produce pinkish flowers in profusion during early summer. They are natives of Southern Europe, and require full sun with light 312 THE BOOK OF HARDY FLOWERS loamy soil. Increase is carried out l)y means of seeds. Pruning may take the form of shortening the longest shoots in spring. They are equally at home in the rock garden or border. Onopordon (Cotton Thistle).— Some of these striking plants are well worth a place in the wild garden or woodland, or even in a large border ; they belong to the Daisy family (Compositae), and are natives of Europe and Asia Minor. The best are Onopordon Acan- thium (Scotch Thistle), bracteatum, and opolucephalum. The flowers of each are purplish-white, the plants reach a height of 6 to 8 feet. They are readily raised from seeds and will grow in ordinary soil. Seed should be sown in spring. Onosma (Golden Drop). — Pretty plants belonging to the Borage family (Boraginaceae) with flowers chiefly of some shade of white or yellow. They thrive in sandy loam, but are apt to suffer unless the soil is well drained, for which reason they are seen at their best in the rock garden in a spot fully exposed to the sun. They grow from 6 to 12 inches high, and bear their tubular- shaped flowers in terminal, partially drooping, racemes. The principal species are : albo-roseum, white, changing to pink ; Bourgaei, pure white ; echioides (often known as taurica), golden-yellow ; and stellulatum, yellowish. They all bloom more or less throughout the summer, and can be increased by seeds or by division. Seeds should be sown in spring and division carried out in early autumn. All have hairy foliage, and they must be in a sunny spot ; it is wise to protect the plants from rain in winter by a pane of glass supported some inches above them. They are natives of Southern Europe and Asia Minor. Ophioglossum (Adder's Tongue). — This strange-looking plant, which grows wild in Britain, would not be looked upon by the un- initiated as a member of the Fern family (Natural Order Filices), as in general appearance it is widely removed from plants of that order. In a wild state it frequently occurs in grassy meadows, where in a moderately moist situation it will grow I2 inches high, but in drier uplands its height is much less. It is deciduous, and forms a bud, not a tuber, from which fleshy horizontal roots are produced. These occasionally develop a bud, and thus form a plant some inches from the parent. The simple barren fronds of Ophioglossum are borne on long stalks, and are similar in shape to an arrow-head. The fertile frond is like a tongue, the spore cases being arranged in two opposite rows. Wonderful medicinal values were formerly attached to Ophioglossum. It will thrive in a cool, fairly moist part of the rock garden in loamy soil. Ophrys (Bee Orchis). — A group of Orchids (Natural Order Orchi- daceae), found wild in Britain, that form roots of a more or less tuber- OPUNTIA 313 ous nature. They are not at all showy, but are extremely interesting from the fact that the flowers bear a certain resemblance to insects, etc. ; hence their popular names. They succeed best in chalky loam and in a partially shaded position. Some of them occur freely on the chalky downs in the South of England. The chief kinds are : apifera (Bee Orchis), flowers green and rose ; Arachnites (Black Spider Orchis), rose-purple and green ; aranifera (Spider Orchis), green and brown ; bombilifera (Humble Bee Orchis), chocolate-brown and green ; lutea, yellow and purple ; speculum, green, yellow, and blue ; and muscifera (Fly Orchis), green and dark red. All bloom in early summer. Opuntia {Prickly Fig).— The hardy kinds, of which there are very few, are dealt with under the heading of Cactus. Orchis. — The various kinds of Orchis (Natural Order Orchidaceae) are terrestrial Orchids, native chiefly of Europe and Asia Minor, while some are found wild in Britain. Orchis foliosa, which comes from Madeira, is one of the most handsome of all. In peat and loam, in a cool, moist spot, the flower stems will reach a height of from 18 to 24 inches ; the blooms are purplish-rose and open in May. The Marsh Orchis (latifolia) is a showy native plant, about 12 inches high, bearing purplish blossoms in June. The Spotted Orchis (macu- lata), also found wild in Britain, has handsomely spotted leaves and rose-purple blooms in early summer. A variety of this, known as superba, is especially fine. Others are : mascula, 4 or 5 inches high, with purplish flowers in April— one may sometimes find a meadow carpeted with this kind ; pyramidalis, 12 inches, having rose-coloured flowers in June ; and the Soldier Orchis (militaris), which grows about 15 inches high, and bears purplish blooms in April. All these kinds may be grown in loam and peat with which sand is mixed, and need a fairly cool spot ; they dislike being disturbed, and should be planted as early in autumn as the roots can be obtained. Origanum (Marjonmi). — One species of Origanum (Natural Order Labiatae), namely vulgare, is a well-known herb, being extensively grown under the name of Marjoram. It is of no particular ornamental value, but the others are exceedingly pretty little bushy plants, about I foot high, that form a pleasing feature on a sunny part of the rock garden where they bloom during summer. The little ovate leaves are densely hairy, and the popular name of pink Hops conveys a good idea of the general appearance of the inflorescence. The best are Dictamnus (Dittany of Crete), and hybridum, both with pink flowers, and pulchmm, in which the blooms are pale rose. Origanums thrive in ordinary sandy soil, and may be increased by division when 314 THE BOOK OF HARDY FLOWERS domiant, or by cuttings of the young shoots taken when they are about 3 inches long, inserted in pots of sandy soil, and placed in a close frame until they root, after which they can be planted out-of- doors. Ornithogalum. — An extensive group of bulbous plants (Natural Order Liliaceae), natives principally of the Mediterranean region and South Africa. The South African kinds can only be planted in a well-drained border, close to a warm wall, such as is recommended for Babiana. Many of the others, however, are quite hardy and of considerable value in the garden. The best are : arabicum, having large white flowers with dark centre, on spikes i8 inches high ; nutans, with drooping Blue Bell-Hke flowers of silvery-grey and greenish tint ; pyramidale, pure white, striped with green at the back ; pyrenaicum, greenish-yellow ; and umbellatum (Star of Bethlehem), whitish starry flowers, borne close together on a short sturdy spike. The last- named flowers in spring, the others in early summer. The bulbs should be planted by the end of September in sandy loam. Ornitho- galum umbellatum is a most accommodating plant, and thrives excellently in a shady border, or may be planted in grass. Orobus. — {See Lathyrus.) Orobus vernus (Spring Vetch). — This is a pretty little border plant, native of Europe, and member of the Pea family (Legumi- nosae) ; it grows about 12 inches high, thrives best in sandy, well- drained border soil, and bears purplish-blue flowers in April. Orontium (Golden Club). — A plant belonging to the Natural Order Araceae, and native of North America ; in general appearance it is similar to Arum. It has a fleshy rootstock, from which thick, dark green, ovate leaves are produced, while in May the golden club- like blossoms are produced. This Orontium is an aquatic, and if planted in good soil at the bottom of 6 to 12 inches of water, it will grow rapidly. Orris Root. — (See Iris florentina.) Osmanthus.— This is a useful family of evergreen shrubs be- longing to the Olive family (Oleaceae). The commonest species is Osmanthus Aquifolium, from Japan ; it forms a shapely bush, 3 to 5 feet high, with Holly-like leaves, possessing the pecuharity of those of the Common Holly, namely, of being spiny-margined on young plants and almost spineless on aged specimens. The flowers are white, fragrant, and borne during winter. The variety purpureus differs from the type by having purplish leaves, whilst variegatus has silver variegated foliage, and rotundifolius small and more rounded leaves than the typical kind. There are other kinds, such as lati- riwto . r. <.r. I illaia HARDY HERBACEOUS FLOWERS IN A FORMAL GARDEN OSMUNDA 315 folius, with larger leaves ; and Delavayi, a smaller bush, with rather small leaves and pretty white flowers. All thrive in loamy soil con- taining a little peat, and may be increased by cuttings inserted in sandy soil in a warm and closed frame in summer. Pruning to shape the bushes may be done during summer. Osmunda {Royal Fern). — Of our various hardy Ferns, Osmunda regalis (Natural Order Filices), is unsurpassed, for, given a suitable position, it will grow from 6 to 8 feet in height, or even more. It is popularly termed the Royal Fern, and certainly that title is well deserved. This fern, which is found wild over the greater part of the globe, is seen at its best in this country in wet, marshy districts. There it forms a mass of solid rootstocks, bound together by stout black wiry roots, totally unlike those of any other fern. The fronds — which are bi-pinnate or twice divided — are from 3 to 6 feet in length. The spores are borne, not at the back of the fronds, but on spike-like masses towards the upper part of the fronds in the centre of the plant. For waterside planting this fern is one of the best plants we have. Two North American species are also very beautiful, but they do not need so moist a spot as the Royal Fern, although they must be watered freely in summer. They are : cinnamomea and Claytoniana, which form handsome tufts 2 feet high and twice as much through ; the fronds are but once divided instead of twice, as in Osmunda regalis. Strange to say, when only barren fronds are produced cinnamomea and Claytoniana are difficult to distinguish from each other, but the fertile fronds of the former are wholly spore-bearing, while in Claytoniana the capsules are confined to the middle of the frond, both the lower and upper part being barren. A pretty small Osmunda is japonicum corymbiferum, which grows only about 12 inches high, while the points of the spreading fronds are prettily crested ; it is not adapted for planting under such conditions as the others, but for a damp spot in the rock garden it is well suited. Ostrowskia magnifica (Asiatic Bell Flower). — When well grown this must be regarded as one of the most striking of herbaceous peren- nials. It belongs to the Natural Order Campanulaceae, and is native of Central Asia. The roots, which are thick, fleshy, and excessively brittle, produce stout stems 4 to 5 feet high, terminated by numerous open bell-shaped flowers, about 6 inches across, mauve and white. The plant should not be disturbed ; the best results are obtained by planting it in deep, rich, well-drained loam with which some old mortar has been mixed. A warm and sheltered position, such as at the foot of a south wall, is essential. Ostrowskia can be raised from seeds sown in sandy soil as soon as ripe, and placed in a frame. 3i6 THE BOOK OF HARDY FLOWERS The young plants, when sufficiently advanced, should be planted in their permanent quarters. Ostrya.— This is a group of trees allied to the Hornbeam and belonging to the Natural Order Corylaceae. The commonest species is carpinifolia, the Hop Hornbeam, of Southern Europe and the Orient. The common name refers to the general aspect of the tree, which resembles that of the Hornbeam, whereas the fruit has a Hop-like character. It forms a moderate-sized round-headed tree with ex- ceptionally hard and heavy wood. Ostrya japonica, a native of Japan, is less well known, and quite young trees are its only representatives in the British Isles ; the fruits are rather ornamental and Hop-hke. Ostrya virginica, the Ironwood of North America, is a distinct tree suitable for park planting. All thrive in ordinary garden soil, preferring that of a loamy nature. They are increased by seeds and pruning is directed towards keeping young trees in shape and the leaders clear. This may be done in summer. Othonnopsis cheirifoiia. — The only member of the genus Othon- nopsis in general cultivation is cheirifoiia, which forms a spreading plant about 12 inches high, clothed with grey, thick evergreen foliage. It belongs to the Daisy family (Compositae), and has yellow Marguerite-hke flowers on long stems. It is a first-rate plant for a dry, sunny position in the rock garden, where it will flower from June until August ; a thoroughly drained spot is necessary. It can be propagated by division, or by cuttings of the young shoots in spring as soon as they are sufficiently advanced. They must be pro- tected by a frame or hand-light until rooted. Ourieia coccinea.- — A charming perennial that will keep up a succession of its scarlet Pentstemon-like blossoms from summer until autumn. It belongs to the Snapdragon family (Scrophulari- aceae), and is native of the island of Chiloe, South America. It grows from 9 to 12 inches high. The conditions most favourable to its success are a moist soil and a partially shaded spot. It is increased readily by division in early spring. Oxalis (Wood Sorrel). — The Wood Sorrels form an extensive group of low-growing plants, native of South America, South Africa, and other countries, and belonging to the Geranium family (Gera- niaceae). Many of them have tuberous roots. A few of the hardy kinds are favourite rock garden flowers. The British Wood Sorrel, or, as it is sometimes called, Shamrock (Oxalis Acetosella), is a pretty little native wild flower, found wild in partially-shady spots and in leafy soil ; its dainty white flowers open in April ; it is charming for grouping here and there in odd corners of the rockery or the wood- OXYCOCCUS 317 land. Oxalis adenophylla, pink, and enneaphylla; white, veined with lilac, are invaluable flowers for the rock garden ; they have grey, deeply-cut, rounded leaves, and in summer bear their beautiful blooms in profusion. Rosea is an attractive variety of Oxalis enneaphylla, having rose-coloured blooms. A half-shady spot and a compost of loam and leaf-soil, together with a free sprinkling of sand and grit, suit them well. Both kinds are natives of the Falkland Islands. Oxalis corniculata rubra is a free-growing creeper with bronze leafage and yellow flowers in spring ; it spreads very quickly, and should not be grouped among choice plants. Oxycoccus is a group of shrubs (Natural Order Vacciniaceae), allied to Vaccinium. Two species are sometimes grown : macro- carpus, the American Cranberry, and palustris, the Common Cran- berry of the Northern Hemisphere. Both are of shrubby character, but of more or less prostrate growth, the branches rarely rising more than 9 inches above the ground. Essentially bog-loving plants, they do little good in dry positions, though they may sometimes be kept alive in borders by giving the soil a mulch of sphagnum moss to conserve the moisture. The flowers are pinkish, and the red fruits are showy in autumn and winter. Increase is by seeds or division. Pruning is not required. Oxydendron arboreum is the Sorrel Tree or Sourwood of North AiYierica. It belongs to the Heather family (Ericaceae), and here is seen as a bush or sometimes as a small tree 12 to 15 feet high. The leaves are deciduous, and turn to a brilliant scarlet or orange-scarlet tint in autumn, while about July or early August the large panicles of white flowers are also attractive. It is a somewhat fastidious plant, and only gives the best results when planted in naturally moist peat or sandy loam containing a little peat, and in a sunny position. Its beauty, both as regards flowers and autumnal colouring, however, entitles it to consideration. It is increased by seeds. The flower- heads should be removed when the flowers fade ; regular pruning is unnecessary. It gives good results in some parts of Surrey. Oxytropis. — Dwarf Vetch-like perennials, belonging to the Pea family (Leguminosae), growing about 12 inches high. They thrive best in hot, dry soils, and bloom during summer. The chief kinds are : alpestris, cream ; argentea, white ; Lambertii, rosy-carmine ; and ochroleuca, yellowish. They can be raised from seeds sown in spring and placed in a frame until the seedlings are sufficiently advanced to be removed to the open ground. Pachysandra. — A small group of low-growing evergreen shrubs, belonging to the Spurge family (Euphorbiaceae). Two species 3i8 THE BOOK OF HARDY FLOWERS are sometimes grown, procumbens, from North America, and ter- minals, from Japan. They usually grow about i foot high, and spread by means of shoots from the rootstock. Plant on the rockery or in a border in light loam, increase by division, and do not prune regularly. These plants are of no great value. Paeon i a {Paeony). — As far as actual species or wild types are concerned, the genus Paeonia, which belongs to the Buttercup family (Ranunculaceae), is not a particularly extensive one. There are, however, innumerable garden varieties which serve to place Paeonies in the front rank of hardy herbaceous plants. The Paeonies are divided into two classes, firstly, those that are herbaceous — i.e. dying to the ground during winter — and secondly, the so-called Tree Paeonies. These are not strictly trees, but they are of a woody character, and form permanent shrubs. Prominent among the herbaceous kinds are : albillora, white, the parent of many garden varieties ; anomala, from Siberia, prettily cut leaves, rose-coloured flowers ; arietina, native of the Orient, rose ; Emodi, from China, white ; officinalis, native of Europe, rich crimson ; peregrina, from the Orient, bright crimson ; tenui- folia, dark crimson ; and Wittmanniana, yellowish. Paeonia officinalis, the commonest of all, is a magnificent plant and among the earliest of the Paeonies to expand, being at its best towards the end of May and early June ; it is, however, forestalled by Paeonia anomala. Even before the blossoms appear Paeonia officinalis is attractive, as the young foliage and leaf stalks are heavily tinged with red ; by the time the flowers expand the leaves acquire their normal deep green tint. This species is one of the most vigorous, and will hold its own under varied conditions. In the herbaceous border it forms a striking feature, but is seen to even greater advan- tage in bold groups in the shrubbery or other conspicuous places. The fact that this magnificent Paeony can be purchased cheaply is another point in its favour. Of the garden varieties of herbaceous Paeonies there is a very long list, from which a selection serves to maintain a display in late May and throughout June. All the following are good : Abel de Pujol, clear rose ; Albatross, white ; Ambrose Verschaffelt, violet- crimson ; Canary, yellowish ; Caroline Allain, soft pink ; Constance Devret, ruby-carmine ; Duchesse de Nemours, white, shaded in the centre with lemon ; Faust, pale pink ; Festiva maxima, white ; Gloire de Douai, rich amaranth red ; Henri Demay, crimson-rose ; Jules Lebon, rich rose ; Marie Lemoine, creamy-white ; Madame Emile Galle, rich pink ; Millais, amaranth red ; Octavie Demay, PAEONIA 319 pink, very early ; Reine des Roses, rose ; Surpasse Pottsii, dark crimson ; Tricolor, rose, yellow, and lilac ; Vicomte de TAlma, violet- red ; Victor Lemoine, carmine ; and Virginie, light lilac-rose. The above-named varieties have double or semi-double flowers. The following are single : Abyla, rose ; albiflora carnea, pale pink ; albiflora simplex, white ; Dorothy, silvery-pink ; Enchantress, rich rose ; Kathleen, rose, shaded white ; Rosy Morn, pale blush ; and Twynham Glory, pink. In order to have Paeonies at their best the soil should be deeply dug, some well-decayed manure being mixed in, though the ground must not be made too rich. The most suitable soil is sandy loam ; it is far preferable to heavy land, though this may be improved by adding sand, wood ashes, and fine mortar rubble. The time and manner of planting are of some importance. Paeonies ought not to be transplanted often, for once established they will continue to flower in a satisfactory manner for years, especially if given a mulch- ing of decayed manure in early spring. Transplanting should be done towards the end of September and in October, not later. In trans- planting old clumps of Paeonies, success cannot be looked for if they are simply lifted and planted undisturbed in their new quarters. The clumps should be broken up into pieces, consisting of four or five crowns. It is not sufficient to chop them into pieces with a spade ; the way to proceed is to take two garden forks placed back to back and drive them into the roots well below the crowns ; by pressing the handles outwards the clump will be wrenched asunder without injuring the shoots. After this a strong knife, carefully used, will do the rest. The roots must be planted at such a depth that the crowns are about 2 inches below the surface, while 2 feet apart is a suitable distance to place them. Tree Paeony. — The only Tree or shrubby Paeony in our gardens for many years was the Japanese Paeonia Moutan. This has been supplemented by Paeonia lutea, a yellow-flowered kind from China, at present rare. Rarer still and very costly are some hybrids between the two. Paeonia Moutan and its varieties need deep loamy soil, and a situation where the morning's sun does not shine on them ; though perfectly hardy they start into growth early, and the young shoots are liable to injury by late frost. The damage is all the more severe if the sun shines on them when frozen. The typical Paeonia Moutan has large white flowers, with a blotch at the base of the petals ; the varieties vary in colour from white to deep crimson: Most of these are of Japanese origin and bear Japanese names, such as Adsuma-saki, Bunbudo, Kami-asobi, Tokiwadsu, etc. 320 THE BOOK OF HARDY FLOWERS Paiiurus australis (Christ's Thorn). — This shrub belongs to the Natural Order Rhamnaceae, and is a native of Southern Europe. Its popular name applies to its legendary associations with the " Crown of thorns," used at the Saviour's Crucifixion. It may be found as a dense bush 6 to 12 feet high, or as a small tree upwards of 20 feet in height. The small twiggy branches are clothed with pale green leaves and with many sharp thorns. The small yellow flowers are produced freely in spring, and are succeeded by circular fruits, the central seed being surrounded by a curious membranous wing. Plant in ordinary garden soil and increase by seeds. Pruning does not require regular attention. Simply reduce plants which are out- growing their positions. Pampas Grass. ^(5 < K o (U u O o S D < U > hJ < Q < < W W Q 2 o o Z m W a. < < Q > J w < w O g W 3 O Q < w H U J « < O w W ac H SAGITTARIA 391 Sagittaria {Arrow Head). — Attractive water plants (Natural Order Alismaceae), with arrow-shaped leaves and pleasing spikes of white flowers from July to October. Our native Arrow Head, Sagit- taria sagittifolia, is well known ; it has rich, green, arrow-shaped leaves on long stalks, and tall spikes of white flowers. For water gardening the double var. flore pleno is a much more useful plant, the pure white flowers lasting longer in beauty. The North American Arrow Head, Sagittaria variabilis, is very beautiful, having large white flowers. There is also a double variety, flore pleno, which is generally considered indispensable in an aquatic garden. Water from 6 to 12 inches deep is most suitable, and the roots are planted, in pots or baskets of soil, in the mud alongside a pond. The single kinds may be increased by seeds sown in pots, and submerged in water as soon as convenient after gathering ; the others by division in April. Salix {Willow). — The Willows (Natural Order Salicaceae) are important both from decorative and commercial aspects. They are widely distributed through Europe, Asia, and North America, whilst they have been planted widely in other countries. Some are tiny prostrate shrubs, and others large trees. Several of the latter are of peculiarly graceful habit, and are used extensively for planting in the vicinity of water. Most of the kinds are well adapted for plant- ing in wet ground, although the best results are not obtained where the ground is continually waterlogged ; occasional flooding, however, is not disadvantageous. Some Willows have brightly coloured bark, and for that reason they are planted in large groups for their winter effect. The best colour is obtained from young branches, therefore they are cut hard back each year, usually in March. Many kinds are grown for basket-making, whilst the wood of Willow is the most popular of all woods for the manufacture of cricket bats. One Willow, however, is liked better than any other for the purpose ; that is an upright-growing female tree with bluish leaves, of hybrid origin, variously called Salix alba caerulea and Salix caerulea, and anyone who plants trees for timber should be careful to procure this kind, and plant it in moist soil near a stream or lake. The side branches must be removed whilst quite young, and any which may appear from the trunks of later date must be pulled out when but a few inches long. Willows are often pollarded at a height of 12 to 14 feet from the ground, the branches being cut back every 8 or 10 years. The wood is used for a variety of purposes, such as for splitting for hurdles, charcoal for gunpowder, etc. All the kinds may be easily increased by cuttings made i foot long and inserted out-of-doors in winter. 392 THE BOOK OF HARDY FLOWERS The best tree kinds, other than that already referred to, are the following : Salix babylonica, the Weeping Willow, native of China, is of peculiarly graceful outline, and forms a handsome tree in the milder parts of the country ; elegantissima and Salamoni are other weeping trees of rather more vigorous habit, and hardier. Salix fragilis is the Crack Willow, a large tree common in many parts of the country : its wood is used for the rims of sieves and for other purposes. Salix alba is another handsome tree. The Bush Willows, most frequently grown for basket-making, are selected varieties of Salix purpurea, triandra, viminalis, hippophai- folia, and daphnoides. They are met with under a great variety of names, and each one is made up solely of male or female bushes, which indicates that each has sprung from one original plant. Sahx vitellina and cardinalis are varieties of Salix alba, with yellow and red bark respectively. Although usually grown as bushes, they will attain tree-like proportions if allowed to grow freely. Salix vitellina pendula is a graceful tree with pendent golden branches ; daphnoides has purplish bark covered with a glaucous bloom ; Caprea and cinerea are two common British kinds, the male catkins of which are familiarly known as Palm. Salix magnifica is a very showy Willow recently received from China ; it has very large and thick oval leaves of glaucous green colour, and produces long catkins of flowers. Wlien Willows are grown for the sake of the catkins the male kinds only should be selected. Such as herbacea, Paulinae, and retusa are very dwarf, and suitable for moist places in the rock garden. Salpiglossis. — The present-day strains of Salpiglossis, which belongs to the Potato family (Solanaceae), are the progeny of a Chilian species, sinuata. They are half-hardy annuals, growing 2 to 3 feet in height, with large, prettily veined, funnel-shaped flowers. The great improvement in the size and colour of the flowers brought about by florists during recent years renders the Salpiglossis very desirable for beds and groups in the border. Seeds are sown in a warm green- house or frame during March, the seedlings, when large enough, being transplanted to shallow boxes and planted out-of-doors, about 6 inches apart, towards the end of May. The plants prefer light, rich soil and a sunny position, when they will flower from early in July until September. Seeds of Salpiglossis arc sold separately to colour and in mixture. Different seedsmen give varying names to their strains of seeds, such as variabilis, large-flowered, grandiflora, superbissima, and Emperor. As a rule, for the distinct colours the name of the colour is used; for instance: atrococcinea (blue and gold), purpurea SALVIA 393 (rich purple), Kermesiana (crimson), aurea (golden-yellow), rosea, and coccinea (orange-red). The stem and leaves are viscid or sticky, and the flowers are not of pleasant scent. Salvia (Sage). — Among the Sages (Natural Order Labiatae) are hardy perennials, tender shrubby plants, and annuals. Salvia Hormi- num (The Clary) is a hardy annual worthy of a place in every garden ; it thrives in ordinary soil. Self-sown seedlings often come up annually, otherwise seeds are sown in September and the end of March or early April, where the plants are to flower. If this is not convenient, seedlings may be raised on the reserve border and moved to the flowering positions during May. The plants grow about ij feet high. Salvia Horminum depends for its beauty upon the coloured bracts enclosing the small flowers ; they are purple, white, or rose- coloured ; the best variety is Blue Beard, with rich purple bracts. The plants last in beauty from June to September, the autumn-sown plants being at their best in the former month. The best perennial border Sage is virgata or nemorosa, native of Europe ; it forms a bush 3 to 4 feet high, with showy violet-blue flower spikes from June to September. This Sage thrives in good garden soil, and is readily increased by division in autumn and spring. Cuttings made of the young shoots late in spring root readily in a close frame. The Mexican Sage, Salvia patens, is a half-hardy tuber- ous-rooted species. It thrives out-of-doors in the southern and western counties, but in the London district and farther north the roots should be lifted, placed in sand, and stored in a frost-proof cellar or shed. During March or April they are started into growth in a greenhouse like the Dahlia. The young shoots may be inserted as cuttings in a close frame, hardened off, and planted outside late in May. Its lovely gentian-blue flowers make this plant invaluable for the border from July to September ; rather light soil and a sunny position are necessary. Salvia pratensis, the Meadow Sage, is a rare British plant, worthy of a place in the garden ; it has leafy bracts and rich purple flower spikes. Useful varieties are alba, white ; Baumgarteni, violet-blue ; and rosea, rosy-red. It thrives in ordinary soil, in sunny borders, and partial shade, and is increased by division of the roots in autumn or spring, or by seeds sown on a border out- side in April or May. The plants grow 2| to 3 feet high, flowering from June to August. For beds and borders in summer the best of the shrubby kinds is the Scarlet Sage, Salvia splendens. This is really a greenhouse species, but it is a splendid summer bedding plant. Seedlings are raised under glass by sowing in a warm greenhouse in February, 394 THE BOOK OF HARDY FLOWERS but the usual plan is to take cuttings in August and keep the young plants on the greenhouse shelf during winter, planting outside early in June. For bedding, the best sorts are Fireball, 2 feet ; Pride (Glory) of Zurich, 15 inches ; and splendens grandiflora, 3 to 4 feet ; all have brilliant scarlet flowers lasting from the end of June until September. Ordinary garden soil, well tilled and manured, is suit- able. The Scarlet Sage is a native of Brazil. Sambucus (Elderberry). — Sambucus, which belongs to the Honey- suckle family (Caprifohaceae), includes the shrubs or small trees known as the Elderberries, and a few herbaceous plants. They thrive in moist soil of almost any description, and appreciate a little shade. The Common Elder, Sambucus nigra, is found through Europe, Western Asia, and North Africa. In the British Isles it often springs up as a weed and soon takes possession of considerable tracts of ground if not uprooted. It has a value near the sea, for it stands sea air well, and is often used as a wind-break for choicer plants. There are numer- ous varieties, of which aureo-marginata and aureo-variegata (with golden variegated leaves), leucocarpa (with whitish fruit), and laciniata (with cut leaves) are the best. Sambucus racemosa is the Red-berried Elder of the Northern Hemisphere ; it is distinct by reason of its flowers and fruits being in dense racemes or corymbs instead of the more familiar flat heads of the ordinary Elder. There are many varieties, some of which have very beautiful leafage : foliis aureis and plumosa aurea have very prettily cut leaves of a bright golden hue ; whilst plumosa and tenuifolia have also very prettily cut leaves. The golden varieties show the best colour when cut back well each spring. Sambucus canadensis is a North American species, with larger leaves than nigra ; its golden-leaved variety is very showy, and is useful for planting in large groups ; the branches should be cut down to the ground in March each year, the variety maxima has immense flower-heads. Sambucus glauca, also a North American shrub, produces very large flower-heads in July. All these kinds may be increased by stem or root cuttings, and the species by seeds. Sambucus Ebulus, the Ground Elder, of Europe and the Orient, is the best-known herbaceous kind. It grows 2 to 3 feet high, and may be planted in the wilder parts of the garden or woodland, but is too coarse for the herbaceous border. Sanguinaria (Bloodroot). — The only kind, Sanguinaria cana- densis, belongs to the Poppy family (Papaveraceae), and is native of North America. It has a thick fleshy rootstock, and is increased by division preferably in early autumn. The plants are 4 to 6 inches SANTOLINA 395 high, with rounded, veined leaves, and during May and early June the pure white llowers with yellow centres are very attractive. The Bloodroot thrives best in semi-shaded positions, in the rock garden, among hardy ferns, or beneath deciduous shrubs, in a peaty compost, and may be associated with Rhododendrons. Santolina {Lavender Cotton). — These are dwarf, hardy, shrubby perennials, with pleasingly fragrant foliage ; they belong to the Daisy family (Compositae). The two best known are : Chamaecy- parissus, with silvery-grey foliage, and yellow flower-heads at their best in July, 12 to 24 inches in height ; and viridis, with rich deep- green foliage and creamy-white flowers in July, i| to 2 feet high. Both are natives of Southern Europe. They thrive in ordinary garden soil, and are readily increased by cuttings inserted in a cold frame during August and September. In addition to their beauty and value for the front of the shrubbery border, the plants make very pleasing dwarf hedges, and may be trimmed into shape with shears. Sanvitalia.— The only kind to record here is procumbens (Natural Order Compositae), a Mexican hardy annual. It is a dainty trailing plant some 6 inches high, with yellow, Daisy-like flowers and dark centre. Ordinary light garden soil is suitable. For preference, sow the seeds in autumn or spring where the plants are to flower ; these two sowings will give flowers from the end of May or June to Septem- ber. There is also a double-flowered variety which is readily raised from seeds. Saponaria [Soapwort). — Showy annuals and perennials, members of the Pink family (Caryophyllaceae). They thrive in ordinary garden soil and a sunny position. The annual kinds are : calabrica, bearing a profusion of small, deep rose-coloured flowers throughout summer, 6 inches high, native of Italy ; alba is a pretty white-flowered form. Saponaria Vaccaria grows 2 to 2^ feet high, producing dainty pink flowers from June to September, much valued for cutting in company with the white-flowered variety alba. Sow the seeds in September or early April where the plants are to flower. The best-known perennial is the double-flowered variety of our Common British Soapwort, Saponaria officinalis flore pleno. It grows i^ to 2 feet in height, producing from July to September lovely loose sprays of double rosy-pink flowers ; it is suitable for a sunny or half- shaded position. Saponaria ocymoides is a European trailing plant, 6 inches high, quickly forming a carpet in the rock garden or front of the border, covered in early summer with innumerable small bright pink blossoms. There are several varieties of this kind : splendens, rosy-crimson ; versicolor, pink and white flowers ; and alba, white. 396 THE BOOK OF HARDY FLOWERS One of the best Alpine Soapworts is Saponaria caespitosa, from the Pyrenees, a plant of tufted habit, some 6 inches high, with pretty clusters of rose-coloured flowers in summer. Ordinary well-drained soil suits the perennials. Propagation is by division of the tufts or clumps in autumn or spring. Seeds may be sown in a cold frame from April to June. Sarcococca. — This is a small group of low-growing or medium- sized evergreen shrubs from the Himalaya and China, belonging to the Spurge family (Euphorbiaceae). They thrive in light loamy soil, and are increased by seeds, cuttings, or by division. Regular pruning is unnecessary, but the occasional removal of old branches is attended by good results. They may be planted in fairly sunny places or in moderate shade, and are useful for small groups in the front of the shrubbery, while those of low growth can be grown in the rock garden. Sarcococca ruscifolia is one of the most compact and most useful species ; it is a new Chinese kind. Other useful sorts are coriacea, humilis, prunifolia, saligna, and trinerva. Sarracenia {Himismans Horn). — This is one of the Pitcher plants (Natural Order Sarraceniaceae) which are natives of North America. Only one species is quite hardy, namely Sarracenia purpurea ; this has bladder or inflated horn-like leaves, 6 to I2 inches long, red, prettily veined, and having a curious lid-like appendage at the top. The rich purple flowers are borne on stems about I2 inches high towards the end of April and during May. Propagation is by division in spring, which is also the best time for planting. The Sarracenias revel in moisture ; in fact the roots must never be allowed to become dry. A bog garden is the place for them, or, failing this, the wettest position in the rock garden. Suitable soil consists of peat, sphagnum moss, and pieces of charcoal. The hardiest of the remaining kinds are : flava, psittacina, and Stevensii. In warm and sheltered bog gardens these are worthy of a place ; they should be covered with a temporary frame in winter, if thought necessary. Sassafras officinale. — This rare and interesting tree is a native of the United States and belongs to the Laurel family (Lauraceae). It is hardy in the South of England, and a very fine specimen exists in the gardens at Claremont in Surrey. As in other members of the same family the various parts of the plant are aromatic, and a fragrant oil is obtained from the root-bark and wood which is used in per- fumery and for flavouring purposes. It requires good, well-drained loamy soil and a fairly sunny position. Increase is by imported seeds, and pruning is limited to keeping the leading shoot clear of rivals and otherwise shaping the tree, which may be done in summer. SAXEGOTHEA CONSPICUA 397 Young plants are inclined to be tender by reason of late, ill-ripened growth, but older trees withstand a considerable amount of frost without injury. Satin Flower — {See Sisyrinchium.) Saxegothea conspicua {Prince Albert's Yew) belongs to the Natural Order Coniferae, and in addition to being of decorative value is interesting by reason of its various parts having affinities to several different families, yet it cannot be said to be very closely related to either. Thus, an eminent botanist, the late Dr. Lindley, described it as having the male flowers of a Podocarp, the female flowers of a Dammara, the fruit of a Juniper, the seed of a Dacrydium, and the general aspect of a Yew. It is a native of the Andes of Valdivia and Patagonia, and was introduced in 1849 ^^^id named in honour of the late Prince Consort, hence the common name " Prince Albert's Yew." It is only suitable for the south and south-west counties, but it there makes a handsome specimen of elegant Yew-like habit, growing up to a height of 40 feet. Plant in moist, but well-drained soil, increase from cuttings, placed in sandy soil in a close frame, and prune when young to keep the leading shoot clear. Saxifraga {Saxifrage or Rock/oil). — Of plants cultivated in the open air in these islands, none show greater variation or exhibit such extraordinary beauty as the numerous kinds of Saxifraga (Natural Order Saxifragaceae). The popular name of Rockfoil is only descrip- tive of those that are truly mountain plants, and is misleading when applied to such as peltata, which grows 3 feet high. The majority of Saxifrages grown in gardens are native of the mountains of Europe. Some are only found in restricted localities, while others are widely distributed. Saxifrages are, on the whole, not difficult plants to manage, pro- vided we recognise the conditions that make for success and take the necessary trouble to supply them ; failure will result if soil be used that has become sour, or is close and sticky, holding moisture for a long time. Really well-drained soil is essential, and a compost that suits the majority consists of 2 parts loam, i part each of coarse grit and crushed mortar ; if, in addition, stone or granite chips are mixed with the soil, an ideal rooting medium is obtained. The amateur rock- gardener will often have to make shift with other material, as for instance, crushed bricks in place of grit. Again, those who garden on chalk, or can easily procure this or limestone, have something far superior to mortar rubble, for nearly all the Rockfoils need soil con- taining lime. A shallow bed of soil is httle better than none at all ; " pockets " 398 THE BOOK OF HARDY FLOWERS and crevices intended for the finer Saxifrages should be opened to a depth of 2 feet, 6 inches of rough drainage being placed in the bottom. Then fill up the next 9 inches with the compost already advised, working in some of the larger pieces of rubble, and bring the ground to the original level with the compost, leaving out the rubble. This gives a good depth of well-drained soil, and even in the hottest weather the roots find moisture there. With the mossy Saxifrages and those like Saxifraga Geum and umbrosa, together with a few of the stronger and more vigorous encrusted kinds, this elaborate preparation is not essential. They thrive in ordinary garden soil to which some gritty material is added ; all, however, insist on having thorough drainage. One of the most important groups in the garden is formed by the Encrusted or Silver Saxifrages ; they are easily recognised by the white encrustation that is present on the leaves, which are regularly arranged upon short stems and form a circular outline ; hence they appear like rosettes of silvery- green. The flowers are generally borne in plume-like heads ; the stems, short or tall, are at first erect, but as the flowers expand, these by their weight cause the stem to arch over gracefully. With one exception (Saxifraga floru- lenta) all the plants contained in the group can be recommended to the notice of amateurs, as they present no insuperable difficulties in cultivation. All prefer plenty of lime and grit in the soil and a sunny position. They also succeed in aspects facing east or west, while they are equally at home in the rock garden or dry wall. One of the easiest and most variable species in this group is Aizoon (common on mountains of Europe and north arctic regions), characterised by dense mounds of small silvery rosettes all clustered together ; in balcana, the leaves are broad, the flowers white, heavily spotted with pink on 15 inch stems. Baldensis, from Mount Baldo, is neat, with compact silver rosettes and white flowers ; pectinata has blunt, toothed, silvery leaves, and in rosea the flowers are distinct, being rose ; in flavescens and lutea the flowers are of yellow tint. Saxifraga cochlearis from the Maritime Alps capitvates alike by its dainty spoon-shaped leaves and tiny mounds of silver rosettes, and the grace of the wiry flower stems, 6 inches high, that carry big flowers of purest white ; in the variety minor the rosettes and flower stems are smaller. In Saxifraga Cotyledon, which ranges from the Pyrenees and Alps to Lapland, the broad strap-like leaves form large rosettes, the branched inflorescence of white flowers occupies the upper half of the stem, while in the variety pyramidalis the whole stem is branched from the base upward. The side shoots of the last-named are frequently grown into plants for the cool greenhouse ; to get the best results no THE BLUE SAGE (SALVIA PATENS) A FREE-FLOWERING SAGE (SALVIA GLOBOSA) MOSSY ROCKKOIL (SAXIFRAGA W^ALLACEI) THE QUEEN OF ROCKFOILS (SAXIFRAGA LONGIFOLIA) SAXIFRAGA 399 side growths should be allowed to develop on the pot specimens, all the energy of the plant being concentrated in one rosette. Saxifraga Hostii, from the Alps of Central Europe, is also a strong growing, tall kind with panicles of yellowish flowers, faintly spotted with pink. Macnabiana, another of the tall kinds, is one of the best, with light arching stems, up to 24 inches high, and white flowers heavily spotted with pink. Kolenatiana is an Asiatic species with tapering, strap-shaped leaves, and delicately coloured pink flowers borne in grace- ful plume-like heads, in summer ; it is a charming sort, and prefers a cooler, less sunny position than the others. Lingulata is one of the most handsome Saxifrages, and is represented by numerous forms, all native of the Maritime Alps, the names of which are somewhat confused in gardens. In the typical plant the leaves are long and narrow, and the margins heavily encrusted ; the flowers, which are large and white, are borne by 15-inch stems that are only slightly arched, giving a dense and substantial appearance. In the var. lantoscana the leaves are shorter and distinctly spoon-shape, the flower stem is arching, and the flowers are chiefly on the upper side. There is also a form of lantoscana named superba ; this is recognised by its large white flowers. Saxifraga longifolia, from the Pyrenees, is the most remarkable of the encrusted kinds, it never forms offsets, hence must always be raised from seed ; the plants, however, must have a covering of fine gauze material over them when in flower, otherwise the blooms become fertilised with pollen from other species by insect agency. This kind forms the largest rosette of any ; well-developed specimens measure 9 to 12 inches across. The magnificent flower spike, which reaches a height of 24 to 30 inches, forms a towering pyramid of white blossom. Some years elapse before it attains flowering size. The group of Saxifrages known as the Kabschia section embraces some delightful kinds ; they bloom in the opening months of the year, and present, in striking combination, large flowers surmounting plants of minute growth. They form low mounds or carpets of short, grey or green rosettes formed of leaves that are sharp and needle- like or blunt, and slightly thickened at the base. In planting this section keep the plants well into the ground, and make certain that they are thoroughly firm, while around them, on the surface, employ rough grit in quantity. Propagation may be carried out by division in spring, splitting the plants into pieces having roots, and planting in the usual way ; this, however, should only be practised under compulsion or after some experience has been gained with easier members. Cuttings can also be made of single shoots in summer, 400 THE BOOK OF HARDY FLOWERS inserting several in pots of gritty soil, placing these in a close, cool frame. An easy and satisfactory plant to grow is Saxifraga apiculata ; it spreads into a broad, bronze-green mass, and the flowers are lemon- yellow, several on a stem, and appear as early as March ; there is also a white form, similar to the type in all but colour. Boydii has deep yellow flowers in March ; it is not one of the easiest to manage. A far better garden plant is that known as Boydii alba ; this has large, handsome flowers of white, while it is as easy to grow as apiculata. Burseriana, from the Southern and Eastern Alps, is a plant of un- common beauty, and gives generously of its flowers during February. The plant is variable ; in the type the leaves form close, spiny tufts of dull grey green and the flowers are on 2-inch stems, usually opening about the beginning of March. In the var. major the leaves are larger and of a greyer tint, with a corresponding increase in the size of the flowers ; in the forms known as " Gloria " and " Magna " we have the largest flowered of all, while the var. tridentina is particularly attractive, the margins of the petals being waved. A sunny position or an east or west aspect suits these ; in the south the hottest ex- posure should be avoided. Diapensoides, from the Tyrol, etc., is one of the smallest, with close, imbricated, hairy leaves that form silvery tufts, from which rise 3-inch hairy stems that carry the big white flowers in clustered heads. Saxifraga Elizabethae is a free-growing hybrid, that forms a solid mat of dense green ; the flower stems are some 2 inches high, tinted red, while the clustered flowers are yellow ; it only blooms freely where it receives abundance of sun. Ferdinandi-Coburgi, from Macedonia, has clustered flowers of yellow during April. Faldonside is an early-flowering hybrid, taking pride of place among yellows ; the colour is really sulphur yellow, the petals being rounded and full with crimped margins. Growth is free but slow, the stiff leaves forming a close, hard carpet of greenish-grey. L. G. Godseff is a vigorous hybrid producing fine lemon-coloured flowers on 3-inch stems, the latter tinted red ; it is a good grower, and spreads freely in gritty soil, in sun. Saxifraga marginata, from Southern Italy, produces its large white flowers in clusters of three or more ; the stems are some 3 inches high ; the leaves are not of the spiny kind, but resemble a small silvery Saxifrage having the margins encrusted by lime ; it flowers in March. Rocheliana, native of the Balkans, has small encrusted leaves and white bunched flowers on 2-inch stems ; the var. coriophylla usually gives a more generous display. Sancta, a Macedonian species, has yellow SAXIFRAGA 401 flowers on 2-inch stems, and dense mats of dark green shoots. Paulinae is a hybrid with lemon flowers, on 2-inch stems. The Porphyrion Saxifrages are represented by oppositifoha. In the typical kind the flowers are purple, but the variation found in this kind is very great. In the var. splendens the flowers are purple- crimson, and produced in March ; the var. alba has white flowers, while in the var. W. A. Clark they are bright carmine-red. All are close growing with evergreen, opposite leaves, succeeding best in cool, gritty soil with the foliage and stems fully exposed to sun. Saxifraga Fortunei, from Japan, is the best representative of the Diptera group, and is valuable in being the last to flower ; the leaves are large, rounded, and with toothed margins, while the stout, i8-inch stems carry large panicles of white flowers ; its flowering season is late September or early in October. It is only hardy in favoured districts, succeeding in rich gritty soil with plenty of moisture. Saxifraga sarmentosa, or Mother of Thousands, so often seen in cottage windows, belongs to this group. In the Robertsonia group the best-known representatives are Geum and umbrosa (London Pride) ; of the former the vars. crenata and dentata are worth growing, while the latter should be represented by the vars. Colvillei, serratifolia and minor. All are green-leaved plants, easy to grow in any good soil. A charming and lovely plant of the Engleria group is Saxifraga Griesbachii ; this lovely Macedonian plant has blue-green, silvered leaves which form rosettes of handsome and distinct character. As early as January the centre begins to swell up showing a blood-red, club-like stem ; but not until early March is the infloresence fully developed, and the inverted flowers of purple-crimson reveal the yellow stamens within ; the stems supporting these are also coloured and covered with leafy bracts of the same shade. It looks charming in a vertical fissure, and must have a cool, well-drained spot and soil of grit, limestone chips and loam. The Dactyloides group embraces the mossy Saxifrages ; these are among the most useful and reliable, forming snowy sheets, or masses of colour when in flower. Of the white flowered kinds hypnoides, found in the alpine parts of Britain, is the plant familiar in gardens as Eve's Cushion ; it makes a dense, close, springy mass of vivid green, and bears its flowers on 6-inch stems in spring. Exarata, also of this type, produces flowers in such profusion that the foliage can scarcely be seen ; these are on firm, wiry stems some 3 inches in height. Cam- posii, of gardens, is really Wallacei ; it is a plant of great merit, with big white flowers on branched stems some 6 inches high, and one of the 2 A 402 THE BOOK OF HARDY FLOWERS most effective of the mosses of larger growth. Decipiens, from Northern Europe, is also a large growing kind with leaves that are deeply lobed ; the flowers are large, and on 6-inch stems ; of this plant there are several varieties. Caespitosa, from Northern Europe, and sponhemica, a species found along the West of Ireland, have also white flowers, and generally have much in common with decipiens. Saxifraga muscoides is an important mossy plant of dwarf growth (found widely distributed over the European Alps) ; from this kind the popular strain of red-flowered mossy Saxifrages has originated. One of the oldest and best is Guildford Seedhng, with close carpet of green, and bright red flowers on 6-inch stems. Fergusoni is similar, with rather deeper coloured flowers ; Bakeri, also of small growth, has flowers of rich carmine-red ; sanguinea superba is one of the richest coloured of all. Among the taller red-flowered varieties are Lady Deane, white, with pink centre ; decipiens grandiflora, reddish-pink ; Clibrani, crimson ; and Bathoniensis, deep crimson. All red-flowered forms retain their colour best in half shade ; in full sun they are more or less washy before they fade : the prettiest effect of all is produced while they are in bud. The Megasea group is the last of importance in the garden to notice. The kinds are readily recognised by the large, round, leathery leaves, of an evergreen character. Although the flower spikes are beautiful when seen in quantity, it is for their foliage effect that they are most cherished in gardens ; the autumn and winter tints of ruddy purple and bright red are extremely pleasing. The best are cordifolia and crassifolia, both Siberian plants that differ from each other chiefly in the leaves. Ligulata is the earliest to flower, but is not the hardiest, and should have a warm position in cold districts; it is a showy plant in spring, and gives noble effects when boldly grouped with large rocks on steep banks or ledges ; it is native of the Himalaya. Almost all Saxifrages are readily increased by division, which is best carried out in early spring. With the free-growing kinds all that is necessary is to dibble in pieces or tufts, leaving only the actual crown or rosette exposed ; the better and scarcer sorts should be grown in pots as recommended for the Kabschia section. When off- sets or cuttings are not obtainable, resource must be had to seed, which is sown either in autumn or spring, in pans of gritty soil, the seedHngs being grown under such conditions as described for cuttings. Unless great care has been taken to ensure self-fertilisation in the plant that produced seed, the seedlings will probably be of mixed parentage, as Saxifrages intercross very readily. 2 < S U < < h < w o < < > a> O SCABIOSA 403 Scabiosa (Scabious). — Pretty annual, biennial, and perennial plants (Natural Order Dipsaceae), often known in cottage gardens as Pincushion Flowers in reference to the shape of the flower-heads. The most popular is the Sweet Scabious, Scabiosa atropurpurea, native of Southern Europe, of which the varieties are numerous. They may be treated as biennials and sown in May or June for planting in their flowering positions in autumn ; or they can be treated as annuals and raised from seeds under glass in spring. The plants thrive in good garden soil, grow about 3 feet in height, and flower freely from May to September, according to the time of sowing. Distinct sorts — seeds of which are sold separately — include : Snowball, white ; King of the Blacks ; Marginata, lilac and white ; Pink, Mauve, and Cherry Red. There is also a dwarf strain, nana flore pleno (Tom Thumb), 12 inches, in mixed colours. The best-known perennial is Scabiosa caucasica, the Caucasian Scabious ; it grows about 2 feet high, has dainty lilac-mauve flowers in quantity during June and July, and fewer in August and September. Desirable varieties are : alba, white ; Pride of Riverslea, delicate lilac-mauve ; perfecta, pale mauve ; and Diamond, dark mauve. On fairly light soils and in large rock gardens the plants last for some years, and may be increased by division in September or spring. In gardens where the soil is rather heavy and moist this Scabious is treated as a biennial, seed being sown on a border outside from April to June. The yellow Scabious, Scabiosa lutea, is a tall plant for the herbaceous border, 5 feet high, flowering from July to September ; still taller is the var. gigantea, with primrose-yellow flower-heads. In the rock garden Scabiosa Pterocephala (syn. parnassiaefolia) is a charming plant, 6 inches high, from Greece, with mauve-purple flowers in summer and autumn, and greyish-green foHage. It is increased by division or seeds. All the Scabious need a sunny position. Scabious — {See Scabiosa.) Schinus is a group of evergreen shrubs (Natural Order Anacar- diaceae), closely allied to the Sumach (Rhus). Two species are some- times grown : Bomplandianus, from South Brazil, and dependens, from Chili. Both are evergreen, fast-growing shrubs, which are rather tender and only suitable for the southern counties ; the small white flowers are sufficiently plentiful to be attractive, but there are many more ornamental shrubs. They, however, grow well in poor soil, and for that reason are worth encouragement. Increase is by seeds and cuttings. An occasional cutting back is necessary to keep the plants within bounds. This may be done in summer. It is wise to plant them in a sunny position. 404 THE BOOK OF HARDY FLOWERS Schizanthus {Butterfly Flower). — Although perhaps better known as a greenhouse plant, the Schizanthus (Natural Order Solanaceae) is also a lovely annual for the garden. Three kinds — Grahami, pin- natus, and retusus, natives of Peru and Chili — have been used by the florist in creating the beautiful sorts in cultivation to-day. The colours include white, pink, mauve, lilac, and rosy-red, all more or less blotched and spotted. Good strains of seeds in mixture are : Wisetonensis, large-flowered hybrids ; and hybridus grandiflorus. The prettily cut pinnate foliage enhances the beauty of the plants which grow from i foot to 2 feet high. Seeds are sown under glass towards the end of March or outside during April, where the plants are to flower. The stems should be supported with twigs from an old birch broom when a few inches high. The flowering season is from the end of June to September. Schizocodon. — The only species, Schizocodon soldanelloides, (Natural Order Diapensiaceae) is a native of Japan ; it grows only 3 or 4 inches high and forms a tuft of shining evergreen leaves, among which appear the elegantly fringed, rose-coloured flowers in spring and early summer. Increase is by division in September, at which time planting ought also to be done. Peat and coarse sand form the best soil. This is one of the daintiest flowers for a warm, sheltered nook in the rock garden where the soil is fairly moist. Schizopetalon [Lace Flower).— Only one kind is grown, Schizo- petalon Walkeri, a Chilian plant with prettily fringed white flowers, belonging to the Wallflower family (Cruciferae). It is a half-hardy annual, growing 9 to 12 inches high, raised from seeds in light soil on a warm border during April and early May, where it will flower in July and August. The blossoms have an Almond-like fragrance. Schizophragma.— Climbing plants belonging to the Saxifrage family (Saxifragaceae), and closely allied to Hydrangea. Two species have been introduced, hydrangeoides, from China and Japan, and integ- rifolia, from China. Both are rare plants of climbing habit, and they resemble Hydrangea petiolaris (with which the former plant is often confused) by having aerial roots on the branches by means of which they cling to their supports, tree trunks, rocks, or fences; They, how- ever, show a considerable difference from Hydrangea by the sterile flowers, those of Schizophragma having but one large bract, whilst in Hydrangea there are four. The white sterile flowers are few in number, and they appear here and there amongst the numerous fertile flowers in the large flat head. Plant in good loamy soil against an upturned tree butt, tree trunk, or wall. Propagation is by layers and pruning is unnecessary. Of the two kinds integrifolia is likely SCHIZOSTYLIS 405 to form the most showy plant. The single bracts of the sterile flowers are up to 3 inches long and ih inches wide. Schizostylis (Kaffir Lily). — The only kind is Schizostylis coc- cinea, a South African bulbous plant belonging to the Iris family (Iridaceae), and flowering from October to December. The plants grow about 2 feet high, have Iris-like foliage and vivid scarlet-crimson flowers. The best position is at the foot of a sunny south wall or fence. Suitable soil consists of 2 parts fibrous loam and i part each of peat, leaf-mould, and sand. Increase is by division of the offsets in spring. The clumps ought to be divided, and replanted about every three years. Sciadopitys verticillata (Umbrella Pine). — An attractive Conifer (Natural Order Coniferae), known in its native country, Japan, as the Umbrella or Parasol Pine, by reason of the narrow evergreen leaves being arranged on the branch in the same way that the ribs of a parasol or umbrella are arranged. It has been in cultivation since 1861, about which date it was introduced by two persons, Mr. J. G. Veitch and Mr. R. Fortune. In its native country it forms a timber tree of the largest size. Here, however, it does not appear as if it will ever attain its average size, although it forms a stately, well- furnished specimen clothed with branches from base to summit. The largest specimens are to be seen in the south-west counties, where some are 20 feet high ; it thrives in light, well-drained though moist, loamy soil containing a little peat, and gives the best results where the atmosphere is pure and moist. Although it thrives best in the milder counties, it cannot be called tender, for it withstood the severe winter of 1894-5 without injury in the neighbourhood of London. Propagation is by seeds, which are ripened freely in this country, and pruning consists of keeping the leaders clear, shaping the plants, and removing any cones, whilst still very small, which are not required for seeds. Scilla (Squill, Bluebell). — In small and large gardens the Squills (Natural Order Liliaceae) are equally valuable. They thrive in any garden soil, except that which is heavy and wet, and may be increased rapidly by offsets, while seeds also provide a ready means of pro- pagation ; in fact, if these are allowed to ripen, self-sown seedlings of most kinds spring up readily. Autumn is the best time to plant the bulbs of those kinds that bloom before midsummer ; peruviana and autumnalis should be planted in spring. A suitable depth to plant is such that the smaller bulbs are covered with 2 inches of soil and the larger ones with 3 or 4 inches. The flowering season is from February to April. The earliest are : bifolia, deep blue, native of 406 THE BOOK OF HARDY FLOWERS Europe and Asia Minor ; and sibirica (Siberian Squill), porcelain blue ; there arc white varieties of both, while bifolia carnea has pale pink blooms. All these grow about 3 inches high. During May Scilla italica (Italian Bluebell) bears dainty pyramidal flower spikes of lavender tint, 6 inches high ; this and the white var. alba should find a place in the rock garden, together with Scilla peruviana (Peruvian Squill), which bears a dense raceme of from fifty to one hundred light blue flowers in June. This plant, which is native of the Mediterranean region, has the largest bulb of all hardy Scillas ; light sandy loam and leaf-mould form a suitable compost. In late summer, July to September, we may look for the blossoms of Scilla autumnalis, from Europe and North Africa, purple- blue, and the var. japonica, rose, both with pretty spikes 6 inches higli, and suitable for the rock garden. While most of us are familiar with our native Bluebell, Scilla festalis (nutans), few flower lovers recognise its value for shady borders and odd corners unsuited to choice plants. Varieties are obtainable in half a dozen distinct shades of colour : festahs, violet-blue ; alba, white ; azurea, porcelain blue ; Blush Queen, delicate pink ; carnea, blush pink ; rosea grandiflora, rosy-pink ; and rubra, lilac-rose. Allied to these and suitable for similar positions and for the flower border are the Spanish Bluebells, varieties of Scilla hispanica (cam- panulata). The flower spikes, about 15 inches high, are stiffer and the flowers a little larger than the British Bluebell ; distinct varieties are alba, white ; Bleu Coeleste, deep blue ; Blue Queen, porcelain blue ; Rosalind, rose-pink ; and Rose Queen, lilac-rose. Once planted in sunny or shady positions, the bulbs of both Bluebells and Squills may be left undisturbed for years unless required to be lifted for propagation. Scirpus {Club Rush). — Numerous members of this group (Natural Order Cyperaceae) grow by the waterside and swamps in this country. The two best for the garden pool are the Common Scirpus lacustris, with green leaves and reddish-brown inflorescences, in July and August, several feet in height, and the var. Tabernaemontani zebrinus (Banded Rush), of which the stems are banded or ringed with pale yellow. Increase is by division preferably in spring. Scolopendrium {Hart's Tongue Fern). — ^The British Hart's Tongue, Scolopendrium vulgare (Natural Order Filices), is one of our commonest native ferns. It is an attractive evergreen plant with shining green leathery fronds, curled, crested, or much divided in the numerous varieties. Some have quite small leaves, others grow from 1 1 to 2 feet in length. The Hart's Tongue Ferns thrive in sun FOR THE ROCKERY (SHORTIA GALACIFOLIA) A HANDSOME ROCKFOIL (SAXIFRAGA LINGULATA) THE JAPANESE SPIRAEA (SPIRAEA JAPONICA) THE SATIN FLOWER (SISYRINCHIUM STRIATUM) SCOLYMUS 407 and shade, by the waterside, in the bog garden, on the rockery, in a shady border, and in the chinks of an old wall. While they grow well in ordinary garden soil, they are benefited by mixing a little peat, leaf-mould, and old mortar rubble in the ground previous to planting. Propagation of the varieties is by division in autumn or spring. They may also be increased by spores, but do not come true. It is only possible here to give a list of a dozen of the 400 or 500 varieties which have been given distinctive names : crispum, crispum fibriatum, cristatum, cristatum Kelwayi, cristulatum, grandi- ceps, laceratum, marginatum, ramo-cristatum, ramo-marginatum, sagittato-cristatum, undulatum cornutum. Scolymus {Golden Thistle). — Useful plants for large flower borders and the wild garden ; they belong to the Natural Order Compositae. As the popular name suggests, the plants have Thistle-like leaves and flowers. Increase is by seeds and division in autumn or spring. They are usually treated as biennials and raised from seeds sown outside in May or June. Ordinary garden soil is suitable, and they prefer a sunny position. Scolymus grandiflorus bears golden-yellow, solitary flower-heads in May and June, and has greyish leaves ; it grows 3 feet high, and is native of the Mediterranean region. Scolymus hispanicus (Spanish Oyster Plant) has yellow flower-heads, in clusters, from July to September ; it is 3 feet high, and native of South- West Europe. Scots Pine — {See Pinus.) Scutellaria {Skull Cap).— Those who like to cultivate little-known plants will find Scutellaria interesting and desirable for the rock garden and front of the border. It belongs to the Sage family (Labiatae). Propagation is mostly car- ried on by division of the roots in spring. When seeds are available these should be sown in a frame in spring or early summer. Ordinary garden soil and an open, sunny position supply their needs. The following are the best : albida, from Greece, with white flowers ; alpina, native of Europe and Central . ^ . . THE REEDMACE Asia, purple and yellow ; altissima, a (Typha latifoiia) 4oS THE BOOK OF HARDY FLOWERS Caucasian plant with dark purple flowers ; and baicalensis, native of Siberia, purple. Scutellaria orientalis, from Central Asia and Southern Europe, is a very desirable trailing kind, 9 inches high, with yellow flowers. These plants bloom in July and August, and grow about 12 inches high. Sea Buckthorn. — {See Hippophae.) Sea Holly.— (5^