Crinum asiaticum - Poison Bulb

Crinum asiaticum

Crinum asiaticum are native to Tropical Asia. Crinums are impressive plants reaching 5 to 6 feet in height and 5 to 7 feet across. The bulbs may weigh up to 20 pounds.

Blooming Time: In the greenhouse they bloom all year long. The flowers are white and mildly fragrant. Twenty to fifty flowers are formed on top of thick succulent stems that rise above the foliage

Culture: Crinum asiaticum do best in full sun to part shade. They should be grown in large containers using a compost consisting of 1 part peat moss to 2 parts loam to 1 part sand. Plants should be allowed to dry in between waterings. Too much water tends to cause rotting of the bulbs. Fertilize monthly with a balanced fertilizer. Repot as necessary to keep the plant growing vigorously.

Propagation: Crinum asiaticum are propagated by offset from the parent bulb and by seed. Seeds are often quite large reaching 3 inches across. Seed should be sown soon after ripening.

Crinum asiaticum was featured as Plant of the Week March 31-April 6, 2000.

Guide to Past Plants-of-the-Week:


Search the plant archive or submit a search here:

Cal's Plant of the Week was provided as a service by the University of Oklahoma Department of Microbiology & Plant Biology and specifically the late Cal Lemke, who used to be OU's botany greenhouse grower and an avid gardener at home as well. If the above links don't work, then try the overview site. You may also like to look at the thumbnail index. ©1998-2017 All rights reserved.