Plant of the Week: Streptocarpus sp.
Cape Primrose

Streptocarpus sp.

Streptocarpus sp. is related to African Violets and Gloxinias. They are easy to grow and require the same conditions as African Violets. Streptocarpus is native to Africa, Madagascar, and Asia.

Blooming Time: They will bloom intermittently all year.

Culture: Streptocarpus sp. require high indirect lighting with a minimum temperature of 50 ° F. In the greenhouse, we grow the plants under 58% shade all year. We use a soil consisting of 2 parts peat moss to 1 part loam to 1 part sand or perlite. To this mix, we add 1 cup bone meal to each 0.01 cu. yard of soil mix. Allow the soil to become dry to the touch in between waterings. Fertilize weekly with 20-10-20 fertilizer diluted to ½ the strength recommended on the label. Water less in winter and do not fertilize until new growth starts in spring. Do not splash leaves with water because this causes leaf spotting and may cause the leaves to rot.

Propagation: Streptocarpus sp. is propagated by leaf and stem cuttings or by seed. Start seed in moist peat moss. Do not cover seeds, germination should occur in 14-21 days at 70 ° F.

Streptocarpus sp. was featured as Plant of the Week September 29-October 5, 2000.

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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.