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Cactus SucculentAlpine Rockery

Sempervivum 'Red Devil'

A mat-forming, evergreen perennial comprising rosettes of pointed, lightly hairy, succulent leaves predominantly red to reddish-brown in colour with some green at the leaf base under certain conditions. Starry,pink flowers may be borne in terminal clusters on leafy stems in summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Brown Red
Summer Pink Green Brown Red
Autumn Green Brown Red
Winter Green Brown Red
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H5
Botanical 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

Accepted

How to grow

Cultivation

Grow in moderately fertile, very well-drained 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
  • Gravel garden
  • Patio and container plants
  • Rock garden
  • Low Maintenance
Pruning

Rosettes die after flowering and should be carefully removed

Pests

May be susceptible to vine weevil

Diseases

May be susceptible to a rust

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.