Hi ~ I have never grown them from seed . . and I am a little nervous as I have some seeds coming from a trader. I have grown the plant, different I know, so it scares me too. If all else fails I will try to request a plants swap instead of a seeds swap. I know they propagate very well, I did it several times. I will keep checking back to see if there is any advise on them. Thanks for the good question. Can't relate to the comment about enough cold, we have plenty here in montana.