Adromischus trigynus, or Calico Hearts, is small succulent plant native to South Africa. It has alternate, nearly orbicular leaves up to 1½ inches (3.5 cm) long. They are convex both above and beneath, with conspicuous purple spots. Plants will reach 4-6 inches (10-15 cm) tall. Most plants are sold under the name Adromischus maculatus which differs in leaf shape and size. A. trigynus is an easy plant to grow and with the spotting makes it a very showy succulent.
Blooming Time: In late spring. In the greenhouse, small flowers emerge on 10 inch (25 cm) flower stalks. They are not particularly showy.
Culture: Adromischus trigynus need full sun, warm temperatures and a well-drained potting mix. In the greenhouse, we use a soil mix consisting of 2 parts course sand to 1 part loam to 1 part peat moss. Small gravel is added to insure good drainage. During the growing season (May-October), the plant are watered once a week. During this time, plants are fertilized only once with a balanced fertilizer diluted to ¼ the strength recommended on the label. During the winter months, the plants are moved into a cool room, which is kept at 48°F (9° C), and only watered only enough to keep the leaves from shriveling.
Propagation: Adromischus trigynus are propagated from leaf and stem cuttings anytime during the growing season.
Adromischus trigynus was featured as Plant of the Week June 11-17, 2004.
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.