Sempervivum arachnoideum var. bryoides
moss-like cobweb houseleek
S. arachnoideum var. bryoides is a mat-forming, evergreen perennial, to 12cm tall, comprising very small rosettes, up to 1cm in diameter, of oval, fleshy green leaves tipped with red and covered in a web of white hairs. Mature rosettes can form a stem with a terminal cluster of pink flowers in the summer
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Red | |||
|---|---|---|---|---|
| Summer | Pink | Green Red | ||
| Autumn | Green Red | |||
| Winter | Green Red |
Position
- Full sun
Aspect
North–facing or East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Crassulaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Matforming
- Genus
Sempervivum are evergreen perennials forming mats of fleshy-leaved rosettes, often attractively coloured, with star-shaped pink or pale yellow flowers in summer
- Name status
Correct
- Plant range
- European mountains
How to grow
Cultivation
Grow in moderately fertile gritty soil in full sun. Protect from excessive winter wet. Suitable for rock garden, scree bed, wall crevice, trough or alpine house
Propagation
Propagate by rooting offsets in spring
Suggested planting locations and garden types
- Patio and container plants
- Gravel garden
- Rock garden
Pruning
No pruning required
Pests
May be susceptible to vine weevil and sempervivum leaf miner
Diseases
May be affected by a rust
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