Plant FinderPlant Finder Graphic
Sempervivum tectorum and S. t. calcareum
Sempervivum tectorum and S. t. calcareum

Click to Enlarge

Zone
Zones 2-24, 26, 28-41
Full SunPartial Sun
Full, Partial
Regular WaterMinimal Water
Moderate, Minimal

Sempervivum arachnoideum

Cobweb Houseleek
Crassulaceae
Cacti and succulents, Perennials

SEMPERVIVUM

Native to the mountains of Europe. Form tightly packed rosettes of fleshy, evergreen leaves; spread by little offsets that cluster around parent rosette. Clustered, starshaped summer flowers in white, yellowish, pink, red, or greenish; pretty in detail but not showy. Blooming rosettes die after setting seed, but offsets (easily detached and replanted) carry on.Many species, all good in rock gardens, pots, even in pockets in boulders or pieces of porous rock. Need excellent drainage. Water only to prevent shriveling. Protect from full sun in hot desert regions.

Sempervivum arachnoideum

Gray-green rosettes of many leaves are joined by fine hairs for a cobweb-covered look. Larger rosettes (to 3 in.wide) are surrounded by host of smallerrosettes. Spreads slowly to make dense mat to 1 ft. or wider. Bright red flowers on 4–6-in. stems.

You Might Also Like...

Miscanthus sinensis

Native to Japan, Korea, and China. Variable in size and foliage. Blooms in late summer or fall. Flower...

Agastache cana

Native to Texas, New Mexico. To 2–3 ft. tall, 1 1/2 ft. across. Blooms heavily, bearing reddish ...

Wisteria floribunda

Leaves are 12–16 in. long, divided into 15–19 leaflets. Fragrant, 1/2 -ft. clusters of vio...

Find Your Sunset Climate Zone

Find Your Sunset Climate Zone

View Maps Learn More

Advertisement