Increased readily by dividing roots in spring; also seeds.
Colocasia. See [Caladium].
Columbine. See [Aquilegia].
Colutea (Bladder Senna). Leguminosæ.
Propagated by seeds, or by cuttings, placed in sandy soil in the autumn.
Combretum. Combretaceæ.
Increased by cuttings of side shoots, taken off with a heel, planted in sand under glass, and placed in heat.
Comesperma. Polygaleæ.
Seeds. Propagated by young cuttings, which root freely if planted in sand under glass.
Comfrey. See [Symphytum].