Well, I recieved a small amount of D. cistiflora seed about 5 months ago, and planted it in August, along with some peltata seeds. I was ready to give up on the cistiflora seeds two months ago, when 1 seedling came up died, and the peltata seeds germinated. Today I looked into the pot, and counted 11 seedlings! Yesterday I looked at them, and couldn't see a single seedling. I'm not sure why they came up all at once after such a long time, though it's been slightly cooler and cloudier than usual the past week, maybe that had something to do with it. Anyways, this is incredible, I guess I'll just see how well the seedlings grow now...