We must remember to distinguish two uses of flowers,—their part in a landscape design or picture, and their part in a bed or separate garden for bloom. We now consider the flower-bed proper; and we include in the flower-bed such “foliage” plants as coleus, celosia, croton, and canna, although the main object of the flower-bed is to produce an abundance of flowers.
In making a flower-bed, see that the ground is well drained; that the subsoil is deep; that the land is in a mellow and friable condition, and that it is fertile. Each fall it may have a mulch of rotted manure or of leafmold, which may be spaded under deeply in the spring; or the land may be spaded and left rough in the fall, which is a good practice when the soil has much clay. Make the flower-beds as broad as possible, so that the roots of the grass running in from either side will not meet beneath the flowers and rob the beds of food and moisture. It is well to add a little commercial fertilizer each fall or spring.
Although it is well to emphasize making the ground fertile, it must be remembered (as indicated at the close of Chap. IV) that it can easily be made too rich for such plants as we desire to keep within certain stature and for those from which we wish an abundance of bloom in a short season. In over-rich ground, nasturtiums and some other plants not only “run to vine,” but the bloom lacks brilliancy. When it is the leaf and vegetation that is wanted, there is little danger of making the ground too rich, although it is possible to make the plant so succulent and sappy that it becomes sprawly or breaks down; and other plants may be crippled and crowded out.
There are various styles of flower-planting. The mixed border, planted with various hardy plants, and extending along either side of the garden-walk, was popular years ago; and, with modifications in position, form, and extent, has been a popular attachment to home grounds during the past few years. To produce the best effects the plants should be set close enough to cover the ground; and the selection should be such as to afford a continuity of bloom.
The mixed flower-bed may contain only tender summer-blooming plants, in which case the bed, made up mostly of annuals, does not purport to express the entire season.
In distinction from the mixed or non-homogeneous flowerbed are the various forms of “bedding,” in which plants are massed for the purpose of making a connected and homogeneous bold display of form or color. The bedding may be for the purpose of producing a strong effect of white, of blue, or of red; or of ribbon-like lines and edgings; or of luxurious and tropical expression; or to display boldly the features of a particular plant, as the tulip, the hyacinth, the chrysanthemum.
In ribbon-bedding, flowering or foliage plants are arranged in ribbon-like lines of harmoniously contrasting colors, commonly accompanying walks or drives, but also suitable for marking limits, or for the side borders. In such beds, as well as the others, the tallest plants will be placed at the back, if the bed is to be seen from one side only, and the lowest at the front. If it is to be seen from both sides, then the tallest will stand in the center.
A modification of the ribbon-line, bringing the contrasting colors together into masses forming circles or other patterns, is known as “massing,” or “massing in color,” and sometimes is spoken of as “carpet-bedding.”
Carpet-bedding, however, belongs more properly to a style of bedding in which plants of dense, low, spreading habit—chiefly foliage plants, with leaves of different forms and colors—are planted in patterns not unlike carpets or rugs. It is often necessary to keep the plants sheared into limits. Carpet-bedding is such a specialized form of plant-growing that we shall treat of it separately.
Beds containing the large foliage plants, for producing tropical effects, are composed, in the main, of subjects that are allowed to develop naturally. In the lower and more orderly massing, the plants are arranged not only in circles and patterns according to habit and height, but the selection is such that some or all may be kept within proper limits by pinching or trimming. Circles or masses composed of flowering plants usually cannot be cut back at the top, so that the habit of the plants must be known before planting; and the plants must be placed in parts of the bed where trimming will not be necessary. They may be clipped at the sides, however, in case the branches or leaves of one mass or line in the pattern grow beyond their proper bounds.