Hoya carnosa is one of 100 species of Hoya that are native to Eastern Asia and Australia. The common houseplant Hoya carnosa was named for Thomas Hoym, gardener to the Duke of Northumberland at the end of the 18th century.
Blooming Time: Summer: Clusters of attractive, star shaped, pink-white blossoms are produced in summer. The delicate flowers appear to be made of porcelain and are truly unique.
Culture: Hoya carnosa does best in at least 4 hours of direct sunlight a day, but also can be grown in bright indirect or curtain-filtered sunlight. Night temperatures of 60 to 65 degrees and day temperatures of 70 degrees or higher are optimal. Water freely during flowering but allow the soil to become almost dry between waterings when the plants are resting. Fertilize every 2 months in spring and summer. Do not remove the leafless spurs or stubs, on which new flowers appear every year.
Propagation: Hoya carnosa can be propagated at anytime by air layering or by stem cuttings. A portion of the stem including one or more pairs of leaves will quickly produce roots in water or damp sand.
Hoya carnosa was featured as Plant of the Week May 7-13, 1999.
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.