Essex,
United Kingdom 
can you cut a begonia tuber in half
18 Nov, 2009
Answers
Nice one Volunteer....I never knew that....:>)
19 Nov, 2009
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Yes, do it in spring once the shoots have started to show. Cut the tubers ensuring that each piece has a shoot and some roots. Dust with fungicide and leave it to dry for a few hours. Then pot up each piece so that the top of the tuber is level with the surface of the compost.
18 Nov, 2009