The Q&A Archives: Dividing Tuberous Begonias

Question: I planted some nonstop tuberous begonias in a box with some other tropical plants this year. I pulled the begonias and have a greenhouse. I put them in there for overwintering. Should I dry them instead? Also, how can you divide them to get 2 from 1 plant?

Answer: Tuberous begonias should be left in the ground (or container) until the leaves and stems wither and fall off. Then the tuber is dug and allowed to rest over the winter months. It doesn't require water or soil during this resting period. In the spring new little buds will sprout, indicating the rhizome should be planted or potted up. You can wait until spring to divide the rhizome. After the buds appear, just cut the rhizome into pieces. The more buds on each piece, the more stems and flowers the new plant will produce.

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