Most of the nice sedums don't seem to be hardy to my zone 6. I found out that sedums cross with echeveria. So hybrids would be impossible to know. I would start a section and let outside for the winter to see what happens. Sedums die to the ground level then come back from the roots so had to say. Some new exciting sedums call 'Sunsparkers' are hardy and look interesting.

Bummer! I just moved my plants out last week and a couple have a little burning. I was took quick on my usual acclimatization process. :'(