THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA PRESENTED BY PROF. CHARLES A. KOFOID AND MRS. PRUDENCE W. KOFOID HAKDY ELOWEKS. * ." a I II HARDY FLOWERS DESCRIPTIONS OF .UPWARDS OP THIRTEEN HUNDRED OF THE MOST ORNAMENTAL SPECIES, DIRECTIONS FOR THEIR ARRANGEMENT, CULTURE, ETC " Daffodils That come before the swallow dares, and take The winds of March with beauty : violets dim, But sweeter than the lids of Juno's eyes Or Cytherea's breath; pale primroses, That die unmarried, ere they can behold Bright Phcebus in his strength: .... bold oxlips and The crown-imperial; lilies of all kinds." SHAKESPEARE. BY W. KOBINSON, F.L.S., FOUNDER AND EDITOR OF "HIE GARDEN ;" AUTHOR OF "ALP1ME FLOWERS FOR ENGLISH GARDENS," "THE WILD GARDEN." THIRD AND CHEAPER EDITION. LONDON: MACMILLAN AND CO. 1878. LONDON : PRINTED BY WILLIAM CLOWES AND SONS, STAMFOttD STREET AND CHAKING CROSS. CONTENTS. PAGB Introduction 1 PART I, CHAPTER I. The Mixed Border for Hardy Flowers 5 CHAPTER II. Hardy Flowers in the Mixed Shrubbery Border ,..,... 7 CHAPTER III. Beds and Groups of Hardy Perennials, etc 11 CHAPTER IV, Isolation of Hardy Plants .15 CHAPTER V. Hardy Perennials and Alpines as Bedding Plants .,,... 17 CHAPTER VI. Hardy Alpine and Perennial Plants in the Rock-garden, in the Wild- garden, in Water, and in Boggy Ground 20 M363557 vi CONTENTS. CHAPTER VII. PAGJ Hardy "Florist's Flowers" . 23 CHAPTER VIII. Hardy Flowers in the Spring-garden 25 CHAPTER IX. The Culture of Hardy Flowers 27 CHAPTER X. The Propagation of Hardy Flowers 32 PART II. Alphabetical Arrangement of the most Ornamental Hardy Flowers, with Descriptions, Culture, Suitable Positions, etc . . . 41 to 264 ADDENDA. New Species, or those omitted in preceding Part 265 to 274 PART III. SELECTIONS OF HARDY FLOWERS FOR VARIOUS PURPOSES. A Choice Selection of the very finest Herbaceous Perennials . . . 277 A Selection of the finest Hardy Bulbs, including Rhizomatous Plants like the Irises and Hardy Orchids 280 A Selection of Choice Alpine and Rock Plants suitable for the mar- gins of Mixed Borders, etc 281 A Selection of the most Ornamental Annual and Biennial Plants . 283 A Selection of the finest Hardy Flowers that Bloom in Spring . . 284 CONTENTS. vii PAGE A Selection of Autumn-blooming Hardy Flowers 28-5 A Selection of Edging Plants 286 A Selection of Plants for forming " Carpets " beneath larger subjects 289 Hardy Plants with Silvery or Yariegated Foliage 291 A Selection of Hardy Flowers suitable for Naturalization in Woods, Copses, Hedgerows, on Euins, Rocky Banks, and in various other Wild or Half- wild Places 293 A Selection of Fragrant Hardy Plants , . . . 295 A Selection of Herbaceous Plants; etc., that will grow beneath the Shade of Trees, and in Copses, etc 296 A Selection of Hardy Perennials, etc., suitable for Exhibition when Grown in Pots 297 A Selection of Ornamental Aquatic Plants 299 A Selection of Plants thriving in Marshy or Boggy Ground . . . 299 Herbaceous and Alpine Plants, etc., that may with advantage be Raised from Seed 300 List of Dwarf Hardy Perennials and Alpine Plants with Fern-like or Graceful Leaves, and suitable for Association with those dis- tinguished by Beauty of Flower in Borders, the Rock-garden, etc. 301 A Selection of Hardy Perennials affording the finest effects in the Picturesque or " Subtropical " Garden 302 A Selection of Hardy Plants of Vigorous Habit and Distinct Cha- racter, suited for Planting in Semi- wild places, in Pleasure* grounds, or near Wood-walks , 302 A Selection of Ornamental Grasses 303 Selection of Alpine and Rock Plants of Prostrate or Drooping Habit suited for placing so that they may Droop over the Brows of Rocks and like Positions 304 Trailers, Climbers, etc., for Covering Bowers, Trellises, Railings, Old Trees, Stumps, Rockwork, Banks, etc. / 305 Selection of Alpine and Rock Plants for Growing on Old Walls, Ruins, Chalk-pits, Stony Banks, etc. . -. 306 List of Ferns that may be Grown with Advantage away from the Fernery Proper .,... 307 viii CONTENTS. HARDY FLOWERS CLASSED ACCORDING TO THEIR COLOURS. PAGE A Selection of Hardy Plants with White Flowers ...... 308 A Selection of Hardy Plants with Red, Crimson, Scarlet, or Pinkish Flowers 309 A Selection of Hardy Plants with Bine, Blnish, or Purplish Flowers 311 A Selection of Hardy Plants with Yellow Flowers, in Various Shades, or in which Yellow Predominates 311 Index to the Natural Orders of the Plants named in Part II. 313 to 322 A Concise Glossary of the Descriptive Terms used in this Work 323 to 332 Index to English Names 333 to 341 HARDY FLOWERS. INTRODUCTION, IN " Alpine Flowers " I treated of the most interesting classes of Lardy plants, and the only ones with which there is the slightest difficulty as to cultivation, etc., but besides the true alpine flora there are many natives of the low hills, plains, and prairies which are not considered " alpine " either from a horticultural or a botanical point of view, and the best of these, with all the true alpine plants, are included here. The book comprises the cream of all the ornamental, hardy, herbaceous, alpine, and bulbous plants at every elevation, from sea shore to snowy peak, that are now to be had in cultivation. The descriptions are more technical than those in " AlpinS Flowers," as it was thought desirable to give the reader some means of identifying any plant of which he might have doubts as to the name. Though the number of species selected is large (between thirteen and fourteen hundred), weedy subjects, or those unsuitable from any other cause, have been carefully excluded. In the selection of these plants for ornamental purposes more care is required than is the case with any other class, and there is nothing more calculated to add beauty and interest of the highest order to the British garden than the spread of knowledge as to the really ornamental kinds. That many perennials are very beautiful every person who knows a Pseony, or a Delphinium, or a Phlox must be aware ; but that a vastly greater number of them are very ragge'd and weedy-looking is not less true ; and it is this fact that explains why they have been so much driven from cultivation of late years. The variation in the aspects of plants, even of the same family, is as great as the contrast presented by their properties, which range from the deadliest of poisons to the most grateful, fragrant, and nourishing of products. Look through the vast and not odoriferous order Composite, and what a way you have to wade through groundsels and fetid and * 2 HARDY FLOWERS. gawky weeds, before you meet a plant that can be called pretty. It is so all over the world. Doubtless many people think, from the fascinating banks of orchids shown at our floral exhibitions, that these favoured plants are gloriously beautiful wherever they are found; but, on the contrary, there are many unattractive plants in the family, many of them large-growing and noble looking, but bearing inconspicuous flowers, not half so beautiful as some of the poorest of our own little meadow orchids ; and so it is with many a tropical family of plants of which only the gorgeous representatives are seen at our flower shows. But, of course, being tropical we have little opportunity of knowing the least ornamental kinds. Moreover, collectors do not bring them home, knowing them to be worthless, and if they are brought home by chance they are soon thrown away as useless. But in the case of the hardy plants of Europe and America it is very different. They are often seen in fact, as often as we go among the fields, or hills, or wilds of those continents ; often gathered and brought home, and once home they, like ill weeds, grow apace and soon become so conspicuous that the really beautiful hardy flowers are unseen among them, or exterminated by them. Most persons will understand what I mean when they remember the many mixed borders they have seen overgrown with weedy asters, Golden Rods, Lysimachia vulgaris, and like plants, which should never be planted except in rough and semi-wild places. In garden books and garden journals it is not uncommon to see lists of those plants given, composed in some cases of the poorest weec l s the ground ivy and Moschatel, to wit. These are, of course, written by persons with a very slender knowledge of the subject, who supplement that little with the knowledge to be gained from lists in botanical books ; and being unable to distinguish the kinds which are beautiful from those which are merely interesting in a botanical point of view, they have had considerable influence in retarding improvement in this direction. It is to me a cause of surprise that while we find persons going to great expense to build a glass box wherein to preserve a little of the pretty vegetation of New Holland and other warm climates, and which is of necessity always in a condition less beautiful and less satisfactory than vegetation flourishing in the free air, we may seek in vain in their gardens for a group of the noble hardy Lilies, for the vividly-coloured and beautiful early spring flowers of northern INTEODUCTION. and temperate climes, or for any interesting- and beautiful hardy vegetation. We live in a country which is, on the whole, better calculated for the successful culture of the most beautiful vegetation of northern and temperate climes than any on the face of the earth, and at present we take as much advantage of it as if we lived in one where, from extremes of some sort, such vegetation could not exist, and where extraordinary and expensive artificial means were requisite for the enjoyment of a little vegetable beauty. That the natives of cool latitudes are of an inferior degree of beauty cannot be admitted. Travellers who love many aspects of vegetation give the palm, I believe, to that of the meadows, heaths, and uplands of cool countries and the high mountain sides near the line of perpetual snow, and certain it is that the finest Orchids of our stoves do not surpass in beauty Lilies and Irises, that are as easily grown as the common Seakale. The reason sometimes urged against the free use of hardy perennials, that they do not remain so long in flower as what are called bedding plants, is a groundless objection, or if not, why not apply it to the contents of the greenhouse and stove ? There it would be sad to think that any one aspect of vegetation should prevail for months at a time, ana why should not the same taste be exercised in some select spot in the open garden ? The fact is that when rightly understood the very fugacity of the most tran- sient kinds will not be considered objectionable ; fortunately, however, a great number of species remain a sufficiently long time in bloom for their beauty to be thoroughly enjoyed. The culture of the finest hardy perennials need not interfere in the slightest degree with that of bedding plants, or anything else indeed, it would enhance the beauty of all ; and in almost every garden there is, goodness knows, an abundance of room for improve"- inent of this kind. To discuss the subject from the basis of the t( mixed border," is completely to beg the question, and in most cases when people discuss this question, the old mixed border seems to represent their ideal of the highest beauty to be attained by the use of the hardy herbaceous and alpine flora of our gardens. To me it has a very different and a very much wider and nobler aspect. I have been somewhat surprised that people have spoken so encourag- ingly of the matter, considering their point of view. During the past eight or nine years I have sought after hardy plants of all kinds un- remittingly, and previous to that I had seen a few good old-fashioned mixed borders ; but at no time have I ever seen anything in this way HARDY FLOWERS. that displayed a tithe of the beautiful plants which it might have had, or that was in any way worthy of a beautiful garden. Assuredly a well-arranged mixed border would be one of the most interesting thing's ever seen in a garden. But it is not alone in that way that the plants under discussion may be made available. Many combina- tions of the utmost beauty, and which have not yet been attempted in gardens, are quite possible with them, and very few have any idea of the many diverse ways in which they may be cultivated, so as to attain the happiest results. I will in the following chapters proceed to describe these various ways in which the flora of northern and temperate climes may be grown and arranged with best effect in our gardens, and by which we may, to a great extent, be deli- vered from the appalling monotony and vacant formality now dis- played by the majority of them. It is an every-day occurrence to see hardy plants placed in positions where there is no possibility of their surviving but for a very short time. Therefore at the risk of being a little monotonous at times, the culture and suitable positions for every species are given. This portion of the work is the result of my own observation of the plants in nearly all public and private gardens in these islands where a good collection is grown, and of their habitats in a wild state both on the continent of Europe and in America. By far the greater number of the plants have been described from personal knowledge of them in a living state. I am greatly indebted to the owners of nearly all the good collec- tions in the nurseries and private gardens near London, and in various other parts of the country, for specimens of a large number of the kinds named in the book. In a work dealing with such a number of plants from so many diverse climes, references to many books had to be made, principally to the following: Walper's "Annales" and " Eepertorium ;" De Candolle's "Prodromus;" Grenier and Godron's "Flore de France;" Vilmorin's "Fleurs de pleine terre;" Duchartres' Jacques et Herincq's " Manuel des Plantes ;" Gray's " Manual of the Botany of the Northern United States;" Pursh's "American Flora;" Torrey and Gray's "Flora of North America;" Wood's "Tourist's Flora;" Don's "System of Gardening and Botany;" Kunth's "Enumeratio Plantarum;" "Nouveau Jardinierj" Syme's "English Botany," and Miller's " Dictionary." PAET I. CHAPTER I. THE MIXED BORDER FOR HARDY FLOWERS. THERE are several other ways of arranging hardy plants in a more beautiful, natural, and pleasing- manner, but the mixed border forms a sort of reception room for all comers and at all times. On its front margin you may place the newest Sedum or silvery Saxifrage ; at the back or in the centre the latest Delphinium, Phlox, or Gladiolus; and therefore it is, on the whole, the most useful arrangement, though it should as a rule be placed in a rather iso- lated part of the garden, where the extent of the place permits of that. Not that a mixed border is not sufficiently presentable for any position; but, having many more suitable things to offer for the more open and important surfaces of the garden, this had better be kept in a quiet, retired place, where indeed its interest may be best enjoyed. If no better situation be offered than the kitchen- gar den, make a mixed border there by all means. The little nursery depart- ment, if there be one, will also suit; but best of all, in a large place, would be a quiet strip in the pleasure-ground or flower- garden, separated, if the garden be in the natural style, by a thin shrubbery, from the general scene of the flower-garden. It is vain to lay down any precise rules as to the position or arrangement of this or anything else ; for, even if we succeeded in having them adopted, what a sad end would it not lead to every place like its neighbour ! That, above all others, is a thing to be avoided. In old times the borders on each side of the main walk of the kitchen- garden were mostly appropriated to herbaceous plants ; and, if well done, this is a good practice, especially if the place be small. A border arranged in this way in a small villa garden will prove a very attractive feature, especially if cut off from the vegetable and fruit quarters by a trelliswork completely covered with good strong- growing varieties of Roses on their own roots. The mixed border is capable of infinite variation as to plan as well as to variety of subjects. The most interesting variety is that o a go* *r .la ** -2 n-? Symphytum bohemicum. * .5 3 .1:1 JJ* 23 ^T3 S| "^ S : H eS I .1 J 1 s .2 3 02 & 1 Is > S w'a n; If- *i II <2g MIXED SHRUBBERY BORDER. composed of choice hardy herbaceous plants, bulbs, and alpine plants. Another of a very attractive description may be made by the use of bedding 1 plants only, from Dahlias and Gladioli to the smallest kinds, but in this case we will confine ourselves to the old- fashioned sort made with hardy plants alone. There is a symmetrical system, which must be entirely kept clear of that of placing quantities of one thing 1 , good or bad, as the case may be, at regular intervals from each other. The very reverse of that is the true system for the best and most interesting kind of mixed border. In a well-arranged one no six feet of its length should resemble any other similar space of the same border. Certainly it may be desi- rable to have several specimens of a favourite plant; but any approach to planting the same thing in numerous places along the same line should be avoided. I should not, for instance, place one of the neat Saxifrages along in front of the border at regular inter- vals, fine and well suited as it might be for that purpose, but, on the contrary, attempt to produce in all parts a totally distinct yet high type of vegetation. The Cannas may be used to diversify the mixed border, a plant here or there having a fine effect. The accompanying plan shows a small portion of what I conceive to be an approach to a tastefully arranged mixed border, so far as size and quality of the plants are concerned. Each of the dwarf plants in front should be allowed to grow into a strong spreading tuft. The borders should be deeply prepared, and of a fine free texture in short, of good, rich, sandy loam. That is the chief point in the culture. It is a great mistake to dig among choice hardy plants, and therefore no amount of pains should be spared in the prepara- tion of the ground at first. If thoroughly well made then, there will be no need of any digging of the soil for a long time, though it will require cleaning, and may with advantage be lightly forked from time to time. CHAPTER II. THE MIXED SHRUBBERY BORDER. No practice is more general, or more in accordance with ancient custom, than that of digging shrubbery borders, and there is none in the whole course of gardening more profitless or worse. When HARDY FLOWERS. winter is once come, almost every gardener, although animated with the best intentions, simply prepares to make war upon the roots of everything in his shrubbery border. The generally accepted practice is to trim, and often to mutilate, the shrubs, and to dig all over the surface that must be full of feeding roots. Delicate half-rooted shrubs are often disturbed ; herbaceous plants, if at all delicate and not easily recognised, are destroyed ; bulbs are often displaced and injured ; and a sparse depopulated aspect is given to the margins, while the only " improvement" that is effected by the process is the annual darkening of the surface by the upturned earth. Walk through gardens in winter and spring, and observe the borders round masses of shrubs, choice and otherwise. Instead of finding the earth covered, or nearly covered, with vegetation close to the margin, and each individual developed into something like a respec- table specimen of its kind, we find a spread of recently- dug ground, and the plants upon it with an air of having recently suffered from a whirlwind, or something or other that necessitated the removal of mutilated branches. Rough-pruners precede the diggers, and bravely trim in the shrubs for them, so that nothing may be in the way ; and then come the delvers, who sweep along from margin to margin, plunging deeply round and about plants, shrubs, or trees. The first shower that occurs after this digging exposes a whole net- work of torn-up roots. There is no relief to the spectacle ; the same thing occurs everywhere in a London botanic garden as well as in our large Westrend parks ; and year after year the process is repeated. While such is the case, it will be impossible to have an agreeable or interesting margin to a shrubbery j albeit the impor- tance of the edge, as compared to the hidden parts, is pretty much as that of the face to the back of a mirror. Of course all the labour required to produce this unhappy result is worse than thrown away, as the shrubberies would do better if left alone, and merely surface-cleaned now and then. By utilizing the power thus wasted, we might highly beautify the positions now so very objectionable. If we resolve that no annual manuring or digging is to be per- mitted, nobody will grudge a thorough preparation at first. The planting should be so arranged as to defeat the digger. To graduate the vegetation from the taller subjects behind to the very margin of the grass is of much importance, and this can only be done thoroughly by the greater use of permanent evergreen and very dwarf subjects. Happily, there are quite enough of these to be MIXED SHRUBBERY BORDER. had suitable for every soil. On light, moist, peaty, or sandy soils, where such things as the sweet-scented Daphne Cneorum would spread forth their dwarf cushions, a better result would ensue than, say, on a stiff clay ; but for every position suitable plants might be found. Look, for example, at what we could do with the dwarf green Iberises, Helianthemums, Aubrietias, Arabises, Alyssums, dwarf shrubs, and little conifers like the creeping cedar (Juniperus squa- mata), and the tamarix-leaved Juniper ! All these are green, and would spread out into dense wide cushions, covering the margin, rising but little above the grass, and helping to cut off the formal line which usually divides margin and border. Behind them we might use very dwarf shrubs, deciduous or evergreen, in endless variety ; and of course the margin should be varied also. In one spot we might have a wide- spreading tuft of the prostrate Savin pushing its graceful evergreen branchlets out over the grass ; in another the dwarf little Cotoneasters might be allowed to form the front rank, relieved in their turn by pegged-down Roses ; and so on without end. Herbaceous plants, that die down in winter and leave the ground bare afterwards, should not be assigned any important position near the front. Evergreen alpine plants and shrubs, as before remarked, are perfectly suitable. But the true herbaceous type, and the larger bulbs, like Lilies, should be " stolen in" between spreading shrubs rather than allowed to monopolize the ground* By so placing- them, we should not only secure a far more satisfactory general effect, but highly improve the aspect of the herbaceous plants themselves.. The head of a white Lily, seen peeping up between shrubs of fresh and glistening green, is in- finitely more attractive than when forming one of a large batch of its own or allied kinds, or associated with a mass of herbaceous plants. Of course, to carry out such planting properly, a little more time at first and a great deal more taste than are now employed would be required ; but what a difference in the result. In the kind of borders I advocate, nearly all the trouble would be over with the first planting, and labour and skill could be successively devoted to other parts of the place. All the covered borders would require would be an occasional weeding or thinning,