They can be grown in as north as North Carolina, etc., but it depends on the locality of plant. Calanthe discolor can be found in Hokkaid...Read Moreo, and the climate there is about zone 5 or 6. I would say it's safe to grow in zone 7 or 8.
There is a wide range in flower color, and this is the basis of many natural (e.g., C. x bicolor) and artificial hybrids (C. Kouzu, etc.).
Terrestrial orchid from Taiwan, Korea and Japan. Has 2-5, evergreen or semi-evergreen narrow oblong mid-green leaves up to 12 inches lon...Read Moreg. Bears up to 10 purple/brown to green flowers 1½ inches across with pink or white 3 lobed lip, flower spike can reach 16 inches.
Flowers April-May
Prone to slug attacks.
Not fully hardy but can be grown outside in sheltered areas. Prefers a well drained, humus rich soil in partial shade.
They can be grown in as north as North Carolina, etc., but it depends on the locality of plant. Calanthe discolor can be found in Hokkaid...Read More
Terrestrial orchid from Taiwan, Korea and Japan. Has 2-5, evergreen or semi-evergreen narrow oblong mid-green leaves up to 12 inches lon...Read More