I have what I guess is the common variety of violets in my shade garden. Someone gave me a clump many years ago and they have spread quite a bit, but it's been very slow. Anyway, I just moved a few clumps of them to a new area. I would like this area to fill in quickly. My question is, would they spread more quickly if I opened the seed pods and broadcast them around the area or is it better to let them seed on their own? If it's ok to break open the seed pods, how do I know when they are ready?