Answer: To help "wake up" tuberous begonias this winter and get a jump on the growing season try this technique. Place the tubers upside down (hollow side down) in slightly moist peat moss, where most of the tuber is still above ground. The temperatures in theroom need to be 70-80F and the humidity high. After one week start inspecting the tubers to see if the buds are developing. When the buds are 1/2" long, turn the tubers over and pot them in individual pots with their tops just covered. Keep it warm and humid and the plants will start growing. I hope this helps.
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