. A dictionary of modern gardening. Gardening. SET 542 S H A SETS are the tubers, or portions of tubers, employed for propagating tube- rous-rooted plants. It may be accepted as a rule universally applicable to them, that a moderately-sized whole tuber is always to be preferred to a cutting of a tuber. The latter are invariably more subject to failure, but if employed, it is a good plan to roll them in gypsum powder. This checks the escape of their sap, and is friendly to vegetation. SEYMERIA. Two species. Hardy annuals. Seeds. Peaty soil. SHADING deserves more attention than it usually obtain
. A dictionary of modern gardening. Gardening. SET 542 S H A SETS are the tubers, or portions of tubers, employed for propagating tube- rous-rooted plants. It may be accepted as a rule universally applicable to them, that a moderately-sized whole tuber is always to be preferred to a cutting of a tuber. The latter are invariably more subject to failure, but if employed, it is a good plan to roll them in gypsum powder. This checks the escape of their sap, and is friendly to vegetation. SEYMERIA. Two species. Hardy annuals. Seeds. Peaty soil. SHADING deserves more attention than it usually obtains, for there is not a plant when in blossom that is not pro- longed in beauty and vigour by being shaded from the midday sun. Nor should shading be attended to merely with regard to blooming plants ; for they are benefited by it during all periods of their growth. Every plant transpires at a rate great in proportion to the elevation of the temperature : the greater the transpiration the more abundant is the absorption of moisture; and the moment the roots fail in afford- ing a supply equivalent to the transpi- ration, the leaves flag, or become ex- hausted of moisture, and if this be repeated often, decay altogether.— Shades, properly managed, prevent this injurious exhaustion. Those used at Sion House deserve particular atten- tion, not only because they are appli- cable to hot-houses, pits, and hot-beds of every description, but because they may be rendered available in the cover- ing of fruit walls, to exclude the frost from the blossom, and the birds or flies from ripe fruit; and also in the cover- ing of flower beds, hay ricks, harvested corn, temporary structures for public assemblages, &c. Fig. " The length of these rolls at Sion House is between fifty and sixty feet, but we have no doubt they might be made longer, since this depends on the diameter of the pole or rod, a, and the toughness of the timber employed, or its power to resist torsion. On one en
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgardening, bookyear18
