SEMPERVIVUM Cobweb - Hens and Chicks, Live Forever - Short 3" - Plant 12" apart. zone 4-10. Once, every grandchild received a start of this plant from their grandmother. Rosettes of leaves ( the hens) send out many offsets ( the chicks) which can be pulled off and transplanted. Prefers sun in alomst any soil. Unusual flowers spikes are produced eventually. A resurgence of interest has sempervivums used in living wreaths, spilling out of clay pots, old tea kettles, and even retired work boots. Wispy webs connect the tips.