| Scientific Name: | Sempervivum arachnoideum ssp. tomentosum |
| Common Name: | cobweb houseleek |
| Family Name: | Crassulaceae |
| Origin: | Europe |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Broadleaf evergreen, Ground cover, Succulent or Cacti |
| Mature Size: | < 0.1m x 0.1 - 0.3m (height x width) |
| Habit: | Horizontal, Spreading |
| Form: | Creeping / Mat-like |
| Texture: | Medium |
| Landscape Uses: | Alpine, Container planting, Green roof technology, Ground cover, Perennial border, Rock garden, Summer interest |
| Exposure: | Full sun, Sheltered |
| Soil or Media: | Rocky or gravelly or dry, Well-drained |
| Leaves: | Simple, Spiraled, Basal, Succulent, Branching hairs, Ovate, Ciliate, Entire |
| Flowers: | Cyme, Purple, Pink, Jul-Aug-Sep |
| Fruit: | Follicle, Brown, Sep-Oct |
| Key ID Features: | |
| Leaves arranged in a cob web-like covering of rosettes. | |