Sempervivum 'Jet Stream'

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houseleek 'Jet Stream'

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Cactus Succulent
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A mat forming, evergreen succulent perennial forming rosettes of fleshy, oval to oblong, hairy, maroon-red leaves tinged green at the base and leafy stems bearing clusters of pink tipped, cream-white flowers in Summer

Position

Full sun

Soil Types

Loam, Sand, Chalk

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 Chalk
Moisture
Well–drained
pH
Acid or Neutral or Alkaline

Position

Full sun
Aspect
South–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

Propagation

Propagate by rooting offsets in Spring or early Summer

Suggested planting locations and garden types

  • Gravel garden
  • Houseplants
  • Rock garden
  • Patio and container plants
  • Low Maintenance
  • Ground cover

Pruning

Carefully remove spent rosettes after flowering

Pests

May be susceptible to slugs and snails, vine weevil larvae, and sempervivum leaf miner

Diseases

May be susceptible to rust