Thanks Rick. I've got hundreds of blooms, and not a lot of spare time, so I'm just trying to do what I can when things are ready. I've been going out daily for the last few days, cutting off the ones that look completely done, with a dry stem, but I was worried that I wasn't waiting as long as I should.
I've got way more chaff than seeds, and it's very easy to tell the difference. I'm just hopeful that some of the seed is viable. I've got about a half acre below my house that I'd love to see these blooming, so I'm hoping for the best! If it's successful, I've got several more acres I'd love to add them to! Anything that isn't starthistle will make me happy at this point!