Saturday, May 15, 2010

How long should poinsettias be kept in the dark/light cycle?

Starting October 1, the plants must be kept in complete darkness for 14 continuous hours each night. Accomplish this by moving the plants to a totally dark room, or by covering them overnight with a large box. During October, November and early December, poinsettias require 6 - 8 hours of bright sunlight daily, with night temperatures between 60 - 70° F. Temperatures outside of this range could also delay flowering. Continue the normal watering and fertilizer program. Carefully following this regime for 8 to 10 weeks should result in a colorful display of blooms

How long should poinsettias be kept in the dark/light cycle?
If you want to force them to bloom, I believe it is 12 hours of light and 12 hours of darkness.


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