Propagating begonia and overwintering

QuestionsPropagating begonia and overwintering
Eileen Keohane Staff asked 14 years ago

I got a large tuber from friend and planted it in Spring in garden.It grew very large with beautiful large flowers The stems are 3-4 ins wide and blooms about 5ins.Height of plant about 2i/2ft..The heavy rain yesterday broke off one branch from just above ground. It has tiny roots. Could I plant this on for next year and how? Advice on overwintering the tuber in the soil.. I have a wooden shed with a window window