Thanks Wim. I am going to pot them for a year and then plant it outside next year. I am so bad with all these pots and I don't have a green house to over winter. They will be definitely not hardy if kept in the pot outside , in winter.
Leena -as you have said Adonis amurensis is hardy here. I have a small one but my friend has a big clump. They grow very slowly.
I have Adonis ramosa which seems to be very hardy and even survived the last winter which was very erratic.
