• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Sedum spectabile

ice plant

AGM plants

AGM plants have been through a rigorous trial and assessment programme. They are:

  • Excellent for ordinary use in appropriate conditions
  • Available to buy
  • Of good constitution
  • Essentially stable in form & colour
  • Reasonably resistant to pests & diseases
ice plant

© RHS 1999

  • Other common names ice plant
    brilliant stonecrop

    butterfly stonecrop
    rabbit's cabbage

    see more
  • Synonyms Anacampseros spectabile
    Hylotelephium spectabile

  • Family Crassulaceae

  • Genus Sedum may be annuals or herbaceous or evergreen perennials with succulent stems and leaves and clusters of small, star-shaped flowers in summer or autumn

  • Details S. spectabile is an herbaceous perennial to 45cm, with thick erect stems bearing shallowly scalloped, broadly elliptic, grey-green leaves and starry pink flowers in flat terminal clusters to 15cm across in late summer

  • Plant range China Japan Korea

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • 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)

    H7

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Exposed

Soil

  • Chalk

    Chalk

  • Chalk

    Loam

  • Chalk

    Sand

  • MoistureWell-drained

  • SoilChalk, Loam, Sand

  • pHAlkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. A drought-tolerant plant, attractive to wildlife

Propagation Propagate by division in spring. Propagate by softwood cuttings of non-flowering shoots in early summer

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Low Maintenance City & Courtyard Gardens Coastal Cottage & Informal Garden Gravel Garden Patio & Container Plants Rock Garden Wildlife Gardens

How to care

Pruning Cut back after flowering to maintain shape or leave seedheads overwinter

Pests Generally pest free

Diseases May be subject to fungal and bacterial crown rot and roots rots

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