One recommendation is to store them near 60F but no data presented to support this seemingly high temperature recommendation.
Tidbits:
From the Latin “sedo” or “sedere” (to sit) and to “assuage”, from the healing properties of the house-leak. Latin names are often misapplied to plants in cultivation.
‘Autumn Joy’ is a reported to be popular cultivar.
Many members of this family are noted for their dense and compact growth. For example, Sempervivum tectorum (hens-and-chickens) has a common name of roof houseleek because it can be grown on roofs and act as shingles. Another possibly more common name for this same species is hen-and-chickens.