Genus Ricinus (Castor bean)

Ricinus communis 'Carmencita' Photo/Illustration: Jennifer Benner

RY-sin-us Common Name: Castor bean

Ricinus communis is the only species in this genus and it is an eye-catcher. It is an evergreen, vigorous shrub native to northeastern Africa and western Asia that is cultivated mainly for its palmate, glossy foliage. It is striking as a specimen plant or in a cool greenhouse. All parts are highly toxic if ingested.
Noteworthy characteristics: Very fast-growing. Evergreen, large, glossy leaves. Highly toxic.
Care: In the garden, grow in fertile, well-drained soil in full sun and stake if necessary. Poor soils produce smaller and fewer leaves and more flowers. In a cool greenhouse, grow in full light and water freely during the growing season. Fertilize monthly.
Propagation: Soak seed for a day before sowing in 3.5-inch pots in spring. Plant out or transplant to 5-inch pots before they become pot-bound, or plants may flower prematurely. Plant out after frost-free date.
Problems: Spider mites, gray mold, seedling blight, charcoal rot, bacterial wilt, and bacterial leaf spot.

Species, varieties and cultivars for genus Ricinus

Ricinus communis 'Carmencita'
(Castor bean) Be the first to rate this plant

Hardiness Zones:

'Carmencita' castor bean is a shrub, usually grown as an annual, that grows to 6 to 10 feet and is well branched, with dark bronze-red foliage and bright red female flowers. Grow in a cool greenhouse or use as a specimen foliage plant in the summer outdoors.