Begonias

This year I bought some Begonia corms instead of the little plug plants I got last year. Well, they took so long to bloom I thought they were dead or dud, but suddenly there are blooms! Not as many as I ordered  - only about 12 out of the 18 seem to have grown and only 7 actually blooming - but more than I was expecting until the last week or two. This one is a smallish single flower which hangs down, the extras are different types and colours.