Ian,
A great read as always!
Useful advice about the Trillium seed. I managed to harvest a substantial amount of seed from Trillium nivale last year ( I crossed divisions from 2 different award winning clones) and I was a little disappointed to see no signs of life despite the seed being sown fresh. Upon investigation the seed is still intact and looks healthy but has not yet shown any inclination to germinate. I will be patient for another couple of years!