Polyscias crispatum or Geranium-leaf Aralia, a native of Brazil, is an evergreen shrub or small tree with a compact habit. It reaches about 12 foot in nature and is widely used as for hedges in the tropics.
Blooming Time: Flowers are small and inconspicuous and are seldom produced outside of the tropics.
Culture: Polyscias crispatum need full sun to partial shade with warm to intermediate temperatures. We grow ours under 52% shade all year long. A suitable soil mix consists of 1 part peat moss to 2 parts loam to 2 parts sand or perlite. Although the plants are tropical, in nature they should be grown on the dry side. The most common failure with Aralias is over-watering. During the growing season, the plants are fertilized every other week. During the winter months, water the plant carefully and try to avoid cool drafts.
Propagation: Polyscias crispatum is propagated by cuttings. Cuttings should be at least 8 inches long and inserted into the pot that they will be grown in. Roots develop in 3-4 weeks at 75° F.
Polyscias crispatum was featured as Plant of the Week February 15-21, 2002.
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 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.