Sempervivum arachnoideum L.
Cobweb Houseleek, Cobweb Hen and Chick, Spider Web Hens and Chicks
Sedum arachnoideum, Sempervivum doellianum, Sempervivum heterotrichum
Sempervivum arachnoideum is a low-growing, evergreen, perennial succulent, forming a mat of fleshy rosettes up to 1.2 inch (3 cm) in diameter. The leaves are green or reddish, with cobwebby, white hairs at the tips. The starry flowers are pink, up to 0.4 inch (1 cm) wide and appear in flat cymes on stems up to 5 inches (12.5 cm) tall.
USDA hardiness zone 5a to 8b: from −20 °F (−28.9 °C) to 20 °F (−6.7 °C).
How to Grow and Care
Relatively easy to grow in container or in rock garden, scree bed, wall crevice, trough or alpine house. It is ideal in so many ways, as it quickly start to form very tight clusters of rosettes, filling in Sempervivum walls, mosaics and topiary, and their shallow yet fibrous root systems hold soil in place even in vertical plantings. After the plant blooms and sets seed it will die, but there will be many offsets to take its place.
Plant in well drained succulent soil mix in full sun to light shade. Water regularly during the growing season and allow soil to dry out before watering again. Water very little during the winter months… – See more at: How to Grow and Care for Cobweb Houseleek (Sempervivum arachnoideum)
The leaves of Cobweb Houseleek are emollient, haemostatic, ophthalmic and sedative. The crushed plant, or its juice, is applied externally to boils, wounds etc and is also used to stop nose bleeds… – See more at: Medicinal Use of Cobweb Houseleek
Subspecies, Varieties, Forms, Cultivars and Hybrids
- Sempervivum arachnoideum subsp. bryoides
- Sempervivum arachnoideum 'Cebenese'
- Sempervivum arachnoideum 'Emily'
- Sempervivum arachnoideum 'Robin'
- Sempervivum arachnoideum 'Rubrum'
- Sempervivum arachnoideum subsp. tomentosum
- Sempervivum arachnoideum 'Viridescens'
- Sempervivum barbulatum
- Back to genus Sempervivum
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