Commonly called Hen 'n Chicks and Houseleeks, Sempervivums stand out for rosettes of thick, pointed leaves. The leaves die after flowering, but new rosettes soon grow from the runners. Shown are Sempervivum 'Sanford hybrids' with dark red leaves, the small 'Cobweb', and 'Silverine'. These plants love full sun and are wonderful in rock gardens and containers.