Flowers beginning with B

I always try to grow busy lizzies and begonias for bedding, with varying degrees of success.  Must try harder. 

I pick up a tray of cheapo busy lizzies/begonias for a couple of hanging baskets - their tiny seeds are way too fiddly for me.
The tuberous Begonias are well worth growing though - come back year after year here with no overwintering needed. There's one growing on the edge of a patch of brambles - I've no idea how it got there as its the sort of daft place that even I wouldn't have chosen.

Plenty of bluebells here too but not all are English ones - there are some of those Spanish invaders amongst them - that I try to pull up when I spot them but they still seem to appear the next year.

V do you mean tuberous (corms) that usually go in hanging baskets and pots or fibrous for bedding?  One year I dug up the fibrous ones and put them in the compost, next spring  dug the compost and found some very nice roots all sprouting, a lovely surprise.  I've brought a window  box  of fibrous ones into the porch to see if they will last the winter.  P talks to them   .... looking for intelligent conversation again.