Begonias --the Houseplant Variety

When I looked in my garden books, I didn't find this begonia.  Finally, it occurred to me that it is really a houseplant.

 For at least a dozen years these stayed in my mother's basement or in a corner of her living room. 

They now spend the winter in my basement.  But the best part of the year is when they stay under the maple trees in my yard.  They perk back up after only a few weeks outside.  They escape the invading roots of their shade trees by staying in their pots.  Usually I do a better job of putting pine needles around them.