I think they do need soaking. Not had much luck with them - hope yours do better.

I grow them successfully,
I soaked them over night then I planted them in pots until I had decent leaf growth then I planted them out in the 'final' positions. they then come every year. 5yrs and they are clumping up.

thanks. Is there a right and wrong way up?

they are so wrinkly it is difficult to tell. there is sometimes a clear dimple thet goes up. but dont worry, they will soon turn themselves the right way.

Planting in pots first is a good idea - might give it a go, as they are such lovely flowers.

it also allowed me to check the colour of the flowers as I do like to keep things 'ordered'. :o)