Nature.

Subtropical gardening has shown us that one of the greatest mistakes ever made in the flower-garden was the adoption of a few varieties of plants for culture on a vast scale, to the exclusion of interest and variety, and, too often, of beauty or taste. We have seen how well the pointed, tapering leaves of the Cannas carry the eye upwards; how refreshing it is to cool the eyes in the deep green of those thoroughly tropical Castor-oil plants, with their gigantic leaves; how grand the Wigandia, with its wrought-iron texture and massive outline, looks, after we have surveyed brilliant hues and richly-painted leaves; how greatly the sweeping palm-leaves beautify the British flower-garden; and, in a word, the system has shown us the difference between the gardening that interests and delights all beholders, as well as the mere horticulturist, and that which is too often offensive to the eye of taste, and pernicious to every true interest of what Bacon calls the “purest of humane pleasures.”

But are we to adopt this system in its purity? as shown, for example, by Mr. Gibson when superintendent of Battersea Park. Certainly not. It is evident, that to accommodate it to private gardens an expense and a revolution of appliances would be necessary, which are in nearly all cases quite impossible, and if possible, hardly desirable. We can, however, introduce into our gardens most of its better features; we can vary their contents, and render them more interesting by a better and nobler system. The use of all plants without any particular and striking habit, or foliage, or other desirable peculiarity, merely because they are natives of very hot countries, should be tabooed at once, as tending to make much work, and to return—a lot of weeds; for “weediness” is all that I can ascribe to many Solanums and stove plants, of no real merit, which have been employed under this name. Selection of the most beautiful and useful from the great mass of plants known to science is one of the most important of the horticulturist’s duties, and in no branch must he exercise it more thoroughly than in this. Some of the plants used are indispensable—the different kinds of Ricinus, Cannas in great variety, Polymnia, Colocasia, Uhdea, Wigandia, Ferdinanda, Palms, Yuccas, Dracænas, and fine-leaved plants of coriaceous texture generally. A few specimens of these may be accommodated in many gardens; they will embellish the houses in winter, and, transferred to the open garden in summer, will lend interest to it when we are tired of the houses. Some Palms, like Seaforthia, may be used with the best effect for the winter decoration of the conservatory, and be placed out with a good result, and without danger, in summer. Many fine kinds of Dracænas, Yuccas, Agaves, etc., which have been seen to some perfection at our shows of late, are eminently adapted for standing out in summer, and are in fact benefited by it. Among the noblest ornaments of a good conservatory are the Norfolk Island and other tender Araucarias; and these may be placed out for the summer, much to their advantage, because the rains will thoroughly clean and freshen them for winter storing. So with some Cycads and other plants of distinct habit—the very things best fitted to add to the attractions of the flower-garden. Thus we may, in all but the smallest gardens, enjoy all the benefits of what is called Subtropical Gardening, without creating any special arrangements for it.

But what of those who have no conservatory, no hothouses, no means for preserving large tender plants in winter? They too may enjoy the beauty which plants of fine form afford. A better effect than any yet seen in an English garden from tender plants may be obtained by planting hardy ones only! There is the Pampas grass, which when well grown is unsurpassed by anything that requires protection. There are the Yuccas, noble and graceful in outline, and thoroughly hardy, and which, if planted well, are not to be surpassed, if equalled, by anything of like habit we can preserve indoors. There are the Arundos, conspicua and Donax, things that well repay for liberal planting; and there are fine hardy herbaceous plants like Crambe cordifolia, Rheum Emodi, Ferulas, and various graceful umbelliferous plants that will furnish effects equal to any we can produce by using the tenderest exotics. The Acanthuses too, when well grown, are very suitable for this use. Then we have a hardy Palm, that has preserved its health and greenness in sheltered positions, where its leaves could not be torn to shreds by storms, through all our recent hard winters.

And when we have obtained these, and many like subjects, we may associate them with not a few things of much beauty among trees and shrubs—with elegant tapering young pines, many of which, like Cupressus nutkaensis and the true Thuja gigantea, have branchlets as graceful as a Selaginella; not of necessity bringing the larger things into close or awkward association with the humbler and dwarfer subjects, but sufficiently so to carry the eye from the minute and pretty to the higher and more dignified forms of vegetation. By a judicious selection from the vast number of hardy plants now obtainable in this country, and by associating with them, where it is convenient, house plants that may be placed out for the summer, we may arrange and enjoy charms in the flower-garden to which we are as yet strangers, simply because we have not sufficiently selected from and utilized the vast amount of vegetable beauty at our disposal.

In dealing with the tenderer subjects, we must choose such as will make a healthy growth in sheltered places in the warmer parts of England and Ireland at all events. There is some reason to believe that not a few of the best will be found to flourish much further north than is generally supposed. In all parts the kinds with permanent foliage, such as the New Zealand flax and the hardier Dracænas, will be found as effective as around London and Paris; and to such the northern gardener should turn his attention as much as possible. Even if it were possible to cultivate the softer-growing kinds, like the Ferdinandas, to the same perfection in all parts as in the south of England, it would by no means be everywhere desirable, and especially where expense is a consideration, as these kinds are not capable of being used indoors in winter. The many fine permanent-leaved subjects that stand out in summer without the least injury, and may be transferred to the conservatory in autumn, there to produce as fine an effect all through the cold months as they do in the flower-garden in summer, are the best for those with limited means.

But of infinitely greater importance are the hardy plants; for however few can indulge in the luxury of rich displays of tender plants, or however rare the spots in which they may be ventured out with confidence, all may enjoy those that are hardy, and that too with infinitely less trouble than is required by the tender ones. Those noble masses of fine foliage displayed to us by tender plants have done much towards correcting a false taste. What I wish to impress upon the reader is, that in whatever part of these islands he may live, he need not despair of producing sufficient similar effect to vary his flower-garden or pleasure-ground beautifully by the use of hardy plants alone; and that the noble lines of a well-grown Yucca recurva, or the finely chiselled yet fern-like spray of a graceful young conifer, will aid him as much in this direction as anything that requires either tropical or subtropical temperature.

Since writing the preceding remarks I have visited America, and when on my way home landed at Queenstown with a view of seeing a few places in the