Now the good news. I think some of the seeds from the discarded pots have germinated! I'm not sure, but I think these might be Hellebore seedlings:
There were six seeds in the discarded batch. At present I see only two seedlings that appear to be likely candidates for Hellebores, but they are in just the place where I tipped out those two pots last Autumn
What do you think? Can anyone give me a positive identification?
Meanwhile, having appreciated the requirement for vernalization, I sowed the other Hellebore seeds in a terracotta pot and put them out in the garden to take their chances.
No sign of any germination yet, but now I'm hopeful of a good result.
Thanks, Elaine! (I hope you read this).