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Botanical name: Sempervivum arachnoideum ‘Cobweb’
You’ve likely never seen anything like this – the name is well deserved, as the small balls of succulent leaves are covered in fine silver hairs, truly resembling a network of cobwebs between each leaf and between the rosettes; a most unusual plant.
Other names: House Leek
| Hardiness zone | 2a |
|---|---|
| Flower color | pink |
| Foliage type | deciduous * |
| Plant form | over mound |
| Mature height | 3 inches (8 inches with the flowers) |
| Spread | 12 inches |
| Light requirements | full sun |
| Moisture requirements | dry to average |
| Plant origin | import |
* deciduous = loses leaves in winter
Cobweb Hens And Chicks's attractive tomentose pointy leaves emerge silver in spring, turning bluish-green in color with hints of silver throughout the season. It features unusual clusters of pink star-shaped flowers with dark red bracts rising above the foliage in mid summer. The fruit is not ornamentally significant.
Cobweb Hens And Chicks is a dense herbaceous perennial with tall flower stalks held atop a low mound of foliage. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.
This plant will require occasional maintenance and upkeep, and should not require much pruning, except when necessary, such as to remove dieback. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Spreading
Cobweb Hens And Chicks is recommended for the following landscape applications;
Rock/Alpine Gardens, Border Edging, General Garden Use, Container Planting
Cobweb Hens And Chicks will grow to be only 3 inches tall at maturity extending to 8 inches tall with the flowers, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. Its foliage tends to remain low and dense right to the ground. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 20 years.
This plant should only be grown in full sunlight. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. It is not particular as to soil pH, but grows best in sandy soils, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selected variety of a species not originally from North America. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Cobweb Hens And Chicks is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers and foliage against which the larger thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.
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