Advice please on collecting and sowing Pulsatilla seeds.
yep, that would be my suggestion as well.
leave them outside
Check that what you sow are actually viable seeds. There is usually a fair number of unfertilised stuff in each seed head. The viable ones have a 'plump' seed at the tip of the feathery bit whereas the non-viable ones are flat.
Some folks remove the 'tail' when sowing as a precaution against it rotting and damaging the seed. Never bothered myself. Mind these days I just dig up the self sown babies from around the parent plant, much easier that way.
Berghill, I've never had any self sown seedlings which is why I'm going to have a go at sowing the seeds. I get seedlings from the Lathyrus Vernus beside the pulsatillas and I'm always on the look out but no luck.
Thanks all for the advice