It's been years since i started echinacea from seed, but as i recall it needs some cold, and it wants dark to germinate, unlike most seeds (so make sure the seed is buried at least 1/4" deep). I don't know if that would apply to the hybrids or not. If it were me, i'd try wintersowing (containers, not direct). There's a whole forum on it, if you aren't familiar with how to do it. It's easy and it works great for many things that are hard to sprout otherwise. I know regular echinacea purpurea isn't that bad, seeing as how i always have seedlings coming up here and there from my original plants. As gorgeous as they are, i haven't had much luck with the crosses here.