Sempervivumcommonly called ” hens and chicks” is another succulent which forms small tight rosettes. They tolerate a wide range of lighting from bright sunlight to indoors but since they hug the ground ,they are very prone to rot if the soil stays too very prone to rot if the soil stays too wet. They tolerate below freezing temperatures. Cobweb houseleek is an interesting sempervivum. After a few years they flower once and die but they regularly produce many pups or chicks which can be separated.