Astroloba sp. is a clump forming, Haworthia-like perennial succulent native to South Africa. The triangular leaves are 1 inch (2.54 cm) wide and 1.5 inches (3.81 cm) long and arranged spirally. This species will reach 10 inches (25 cm) tall. The underside of the leaves have many small tubercles. These are very easy plants to grow and should be in every succulent collection.
Blooming: In the greenhouse, the plants bloom in spring. The greenish-white flowers are in spike-like racemes. Flowers resemble Haworthia flowers.
Culture: Astroloba need full sun to light shade with a well drained slighty acidic soil mix. In the greenhouse, we use a soil mix consisting of 1 part peat moss to 1 part loam to 2 parts sand. We add small gravel to make sure that drainage is increased. Plants are watered and allowed to dry thoroughly before watering again. We fertilize the plant once a growing season with a balanced fertilizer diluted to 1/2 the strength recommended on the label. During the winter months, water is restricted to only once or twice during this period. Plants that stay wet during this period will rot and die.
Propagation: Astroloba is propagated from cuttings and by division of large clumps in spring and by seed if available.
Astroloba sp. was featured as Plant of the Week April 25-May 1, 2008.
Guide to Past Plants-of-the-Week:
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. ©1998-2012 All rights reserved.