P.aurea, grows on hills in Caucasus on acidic bedrocks up to 2400m. This year I did sow them inside in January and some started to grow fast, removed these from the pots with a pincet to keep the other seeds in the pot. Seem that they do not like to be disturbed when small it, all died. The pots were then moved outside and I got more seeds growing during the summer. I tried to plant 2 plants in late summer into peat with grit and they give some new leafs so at least they didn't die. They are still on the same spot, now frozen below the snow so will see this spring if they are alive or not. The ones in the pots are still in them, they were left to grow in a bed of river sand and they had a huge amount of roots into the sand when I had to move them due to winter storage. I have then got some info from Russian growers that the best is to sow them where they supposed to grow and let them be there. And my experience says the same. I got some new seeds this autumn and they are sown directly into my bed of rivers and.So to be continued.
P.alpina ssp apiifolia I just have spread the seeds when ripen where the other grows and some germinated and become plants.
If you want to follow what is happening in my garden and have facebook you can have a peek here
www.facebook.com/peppestradgardI have some seed of P.alpina ssp apiifolia if someone have interest, they are from my own garden and my only pulsatilla and no-one in the surroundings either so it should be the real one. Please give me mail or a pm.