Posted: 06/08/2016 at 09:09
Thanks for all that, Forkers. I think, as the plant has doubled in size since I bought it 4 years ago (although still not huge) and I don't see any seedlings alongside it ever (so, as Ecokid says, it might be sterile), I'll try dividing it early next Spring. They don't flower for great lengths of time, but the colour is so lovely, including the foliage. They are also a 'tidy' plant, keeping themselves upright and not encroaching on any other plant (unlike my Johnson's Blue geranium, that seems to be marching backwards at a great rate this year). And next year, I might try gathering seeds again just to see what happens!