In message , Sacha
writes
Has anyone here grown Lisianthus outside, as opposed to in a greenhouse
or conservatory? We never have - we don't grow it at all - and I
always think of it as a florist's flower. I'm wondering how its quite
delicate flowers would stand up to wind and rain?

I haven't, but one of the ladies on the allotment site has. But I don't
remember how it did.
--
Stewart Robert Hinsley