I went out last night and had another look. I don't know why I was worried. Those little Stellas are right in the middle of all my good daylilies, but if a seedling does pop up, I suspect that I'll be able to tell which one it is, just by the foliage. All of the good daylilies in there have really large foliage in comparison to Stella. Not that a Stella seedling couldn't do something weird, but I'm no longer worried about finding the seeds. With this heat, they would have cooked by now anyway!