Kat, you're right: they do sound pretty. Unfortunately, out of 25 seeds, 18 germinated, then 13 of the seedlings died; when they were big enough to go outside, 4 turned up their toes on contact with fresh air: now I have one left, which looks set to take over the garden on its own. So far all the floweres are white, no blue streaks. If it keeps going I might set it on to next door's clematis. Or maybe next door's cat ...

Steve