I have grown these flowers from seed for the first time this year and they are coming on quite well. However, I am surprised (and slightly disappointed) that all the flowers seem to be purple! I thought it was supposed to be mix of colours.

Some of the plants haven't flowered yet. Has anyone else on this forum grown these plants? If so have you got a mix of colours? Are the other colours slower to flower?

They look and smell delightful, but I had hoped for more variety, particularly because I have an awful lot of them!