This genus of sun loving succulent perennials have a dense mat-forming habit. They have red to green rosettes of flattish broad leaves that may be covered in white web and the white, red, yellow or purple star-shaped flowers appear above the foliage in summer.

Hardiness zones 5 to 10

Sempervivum species are naturally found from Europe to Morocco and extending to western Asia growing from the coast to mountainous regions and tolerating a wide range of conditions. 

They prefer a stony well drained moderately fertile soil in an open sunny position to semi shaded position and is frost, wind and drought tolerant. 
 
Hen and Chickens are grown for their foliage habit and flowers. They are planted in small or succulent gardens or used in sunny rockeries. They are also grown in pots and used as a house plant or mass planted as a ground cover. They are suitable for coastal or mountainous regions and establish in one season from division, requiring little care. ID 709

Note:
The common name of Hen and Chickens is derived from the habit of the new plants emerging from the base of the rosette of the mature leaves.

Sempervivum (sem-per-VEEV-um) species

Crassulaceae (krass-yoo-LAY-see-ee)
Stonecrops and Houseleakes