. An encyclopædia of gardening; comprising the theory and practice of horticulture, floriculture, arboriculture, and landscape-gardening, including all the latest improvements; a general history of gardening in all countries; and a statistical view of its present state, with suggestions for its future progress, in the British Isles. Gardening. 390 SCIENCE OF GARDENING. Part II. in spring, and of herbaceous plants after the season of their flowering, are generally^ to remove from the parent plant the end of the succeeding autumn; yet many sorts of American trees require two years to complete th
. An encyclopædia of gardening; comprising the theory and practice of horticulture, floriculture, arboriculture, and landscape-gardening, including all the latest improvements; a general history of gardening in all countries; and a statistical view of its present state, with suggestions for its future progress, in the British Isles. Gardening. 390 SCIENCE OF GARDENING. Part II. in spring, and of herbaceous plants after the season of their flowering, are generally^ to remove from the parent plant the end of the succeeding autumn; yet many sorts of American trees require two years to complete their roots. On the other hand, some sorts of roses and deciduous shrubs, if their present year's wood be laid down when about half grown, or about the middle of August, it will produce roots, and be fit to separate the succeeding autumn. Subsect. 3. Propagation by Inarching. 2007. Inarching may be described as a sort of layering, by the common _ or slit process, in which the talus or heel intended to throw out fibres, instead of being inserted in the soil, is inserted in the wood, or between the wood and bark of another plant, so as to incorporate with it. It evidently depends on the same general principles as layering ; and all the difference is, that the granulated matter which exudes between the bark and the wood of the talus or heel, instead of throwing out fibres, unites with the wood of the stock or plant to which it is attached, forming a solid ligneous union, which, when the layer or shoot is separated from the mother plant, supplies it with nourishment as the fibres do the common layer. It is the most certain mode of propagation with plants difficult to excite to a disposition for rooting ; and when all other modes fail, this, when a proper description of stock or basis is to be found, is sure to succeed. Professor Thouin (Cours Complet a"Agriculture, &c. art. Greffe) has enumerated thirty-seven varieties of inarching ; but they may all be reduced to two, crow
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Keywords: ., bookcentury1800, bookpublisherlondonprinte, booksubjectgardening
