Description
Ricinus communis, or Castor Bean, known more as Castor Oil Plant, is a tropical annual that makes quite a stunning presence in the garden. This variety, Impala, produces large, copper red leaves. This tall annual is often used to make a back-drop for other lower-growing plants in the summer garden. It freely self-sows. Start Castor Bean seed directly outdoors in a prepared seedbed after danger of frost has passed. Press the seed into soil, cover it with 1/4 inch of soil and keep the seed moist but not wet. With a temperature of 65 70F, germination is usually in 14 days. Grow Castor Bean in full sun. It prefers well-amended, fertile soil. Space plants 36 – 48 inches apart. To get a head start on the growing season, the flower seeds can be started indoors for transplanting out. Caution: all parts of the plant, including seeds are poisonous.
- This castor bean oil plant reaches 3 – 4 feet tall as an annual in USDA zones 5 – 11.
- This tall annual is often used to make a back-drop for other lower-growing plants in the summer garden. It freely self-sows.
