Sempervivum 'Rubin'

RHS Plant Profile
houseleek 'Rubin'

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houseleek 'Rubin' RHS

Synonyms

Sempervivum tectorum rubin

Alpine Rockery Cactus Succulent
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An evergreen, mat-forming perennial with clusters of medium-sized rosettes made up of fleshy, burgundy-red leaves flushed olive-green in the centre. Starry pink flowers may be borne on stout stems, up to 15cm tall, in summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
East–facing or South–facing or North–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Crassulaceae
Native to GB/Ireland
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, well-drained soil in full sun. Protect from excessive winter wet. Suitable for rock gardens, scree beds, wall crevices, troughs or alpine houses

Propagation

Propagate by offsets in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Rock garden
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants

Pruning

No pruning required

Pests

May suffer from vine weevils

Diseases

May suffer from a rust