Where there is abundance of room, it ii most convenient for culture, to. keep perennials, biennials, annuals, and bulbs in beds or compartments by themselves; but, whether the apace for flowers be limited, or of considerable extent, when the pbject is to have an equal display of flowers in spring and autumn, all these different kinds of plants must frequency be mixed together, to makeup the colours required; for example, in February, March, and April, very little could be effected in a bed or border of mixed flowers, without the aid of crocuses, scillas, and hyacinths: and, late in autumn, there would ha no great display without dahlias, lupines, China asters, marigolds, etc, all which are either tuberous-rooted plants, or annuals. Whatever kinds of flowers may be admitted into a. flower-bed or border, one principle, of planting must never be lost sight of; that is, distinctness, or the keeping of every particular plant perfectly isolated, and, though near to, yet never allowing it to touch, the adjoining plants.

This is merely the principle of the gardenesque applied to flowers; and it is so decidedly preferable, in point of convenience for culture, to planting so close together as that the plants will soon join together and cover the surface of the soil, that we should never for a moment think of recommending what may be called the picturesque in flower-planting, either for a flowen-garden or for flowers in borders. We except, however, creepers and low plants, and perhaps plants generally, where the object is to, produce one dense mass of any particular colour; because this object cannot be effected without allowing the plants to cover the whole bed. On the same principles of distinctness and suitableness for culture, no shrubs that are not either of very low growth, such as dwarf rosea, or that have not very small heads, supported on stems four feet or more in height, should ever be admitted in|o flower-beds or borders. Dwarf roses, for all practical purposes, may, in effect, be considered as herbaceous plants; since they flower best when kept low by pruning, and when taken up and replanted in fresh soil, every year.