Crinum. Amaryllideæ.
Increased by seed, sown singly as soon as ripe in three or four-inch pots, in sandy loam and leaf-mould. Place in a temperature of from 70° to 80°, and keep rather dry until the plants appear, when more moisture should be applied. Also increased by offsets, which should be removed when rather small and potted separately, and grown as recommended for seedlings.
Crithmum. Umbelliferæ.
Propagated by seeds sown as soon as ripe, and by divisions.
Crocosmia. Irideæ.
Propagated by seeds sown in pans in a cold house as soon as possible after maturity. Also by offsets.
Crocus. Irideæ.
Propagated by seed, sown as soon as ripe or early in spring, the choicer strains in pots or boxes, using a light, sandy soil, and afterwards placing them in a cold pit or frame; the more common varieties may be placed in a warm position outside in a seed bed. Sow thinly, so that the plants may grow two years in the seed pan or bed without lifting. By the corms. These may be lifted and replanted, allowing each in its turn to develop new corms below. The following year new corms, or cormels, are also formed by the side of the old corms. These old corms die away annually. Some species increase much more rapidly than others.
Crossandra, Harrachia. Acanthaceæ.
Seeds. Propagated by cuttings, which root freely at almost any time of the year, in bottom heat.