Here is a very interesting, hardy succulents that grows well among our sempervivum and low growing sedum.
Orostachys furusei and Orostachys fimbriata
Here is a great link for photos of Orostachys.
http://www.google.com/images?h...
My Orostachys eburnifolia has offsets, and so does the Orostachys spinosa
Any suggestions on how to get them through the winter and spring are appreciated.