Have you found a source for seeds? I'm interested in this idea as well. I love snowdrops, particularly G. nivalis, but for some reason they've become really pricey over the years! And I don't often see the regular form of G. nivalis offered either. I would so love to recreate this:
I have some little clumps of the double form increasing nicely in a few spots of the garden, but unfortunately they seem to be sterile. I also feel they lack some of the charm of the single bloom.
