Plant of the Week: Paphiopedilum concolor
Orchidaceae

Paphiopedilum concolor

Paphiopedilum concolor is a small terrestrial orchid with dark green and grey-green mottled leaves. The mottled leaves are up to 6 inches long by 1½ inches wide. Paphiopedilum concolor is a native of Burma, Thailand and Southern Vietnam.

Blooming Time: Spring or Autumn. The 4 inch tall flower stem has reddish hairs and carries one or two flowers approximately 2¾ inches in diameter.

Culture: Paphiopedilum concolor require intermediate to warm conditions. Being terrestrial orchids, they do not like direct sunshine but require semi-shade. We grow our under 52% shade all year. Since they do not have storage organs, they must not be subjected to a resting period. They should be watered every 3 to 5 days. Fertilize monthly with high nitrogen fertilizer diluted to ½ the strength recommended on the label. After flowering, water should be restricted for a period of 4 weeks, but take care that the compost never dries out completely. During the spring and summer, sufficient humidity and air circulation is a must. The compost should consist of osmunda fiber, sphagnum moss and a small amount of bark with sand and leaf mold added.

Propagation: Paphiopedilum concolor Is propagated by division in spring.

Paphiopedilum concolor was featured as Plant of the Week December 8-14, 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 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.