Lewisia
Brian Whyer (Sat, 13 Apr 2013 04:41:36 PDT)

Lewisia tweedyi grow very quickly from seed, and other species I suspect. I sowed Nargs seed last spring and they started flowering in the autumn. The only 2 plants I retained are now in full flower. They were kept in an unheated greenhouse over winter, maybe -5C min. Unfortunately although the seed was labelled "from a yellow form" they are all the same salmon type colouring, but I do have pots of white and rosea types in full flower now.
Only wish I could grow them reliably outside in the UK climate.

Brian Whyer, Buckinghamshire, England, zone ~8 ish

Hello-