Begonias
By Sjw
gloucestershire,
United Kingdom 
I have lots of begonias in my hanging baskets, I am trying to save them for next year. I have taken several out of the basket, removed the soil but the corms/bulbs are very small. Can you save them for next year or are there sorted sorts that only last one season. Does anyboday know.
14 Oct, 2009
Answers
There are bedding begonias that are just fibrous rooted, not corm, rhizome or bulb, and these are usually thrown away at the end of the season. You do mention corms though, even if they are small - have a look at the blog Spritz mentions above.
14 Oct, 2009
Take a look at Crazydi's blog on keeping begonias through the winter - that might help you. Type her name into the search box, then find the blog.
Good luck!
14 Oct, 2009