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January plant of the month: Chinese ground orchid

Bletilla striata, or Chinese ground orchid, is an easy-to-grow terrestrial orchid that performs exceptionally well in our area. Completely dormant in winter, Bletilla is just beginning to emerge now and by mid- to late-spring will be covered with small cattleya-like blooms in shades of purple, pink or white. Sword-like pleated foliage 12 to 18 inches tall remains attractive throughout the summer. Bletilla prefers damp (not wet), well-drained soil enriched with organic matter. It does best with morning sun (to produce flowers) and afternoon shade in our summers.

Ground orchids grow from corm-like pseudo bulbs that serve as nutrient storage for over-wintering, so continue to provide moisture throughout the growing season. Allow foliage to die back naturally and apply a good organic mulch in autumn. Virtually disease free, although snails and slugs are an occasional problem. Bletilla will naturalize over time, and clumps are easily divided in late winter.

Chinese ground orchid. (Photo: Nancy Devaurs)
Chinese ground orchid. (Photo: Nancy Devaurs)