• 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

Eucomis vandermerwei

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

© RHS

  • Synonyms Eucomis 'Van der Merwei'

  • Family Asparagaceae

  • Genus Eucomis are bulbous perennials forming a large basal rosette of strap-shaped leaves, with an erect stem bearing a dense raceme of star-shaped flowers, topped by a crown of leafy bracts, opening in late summer and early autumn

  • Details E. vandermerwei is a bulbous perennial producing a rosette of wavy-edged, strap-shaped, dark green leaves, heavily blotched with dark purple-red. The star-shaped, purple flowers are produced in late summer in cylindrical spikes 15cm high, with a cluster of purple-edged, dark green bracts at the top

  • Plant range N South Africa

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • 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)

    H3

Colour

Sunlight

  • Full Sun

  • Aspect West-facing or South-facing or East-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, 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 Best grown in very free-draining compost in a terracotta pot and taken under cover for winter or, in very mild areas, grow in a gravel bed or rockery

Propagation Propagate by seed sown in autumn or spring or remove offsets in spring

Suggested planting locations and garden types Patio & Container Plants Gravel Garden Rock Garden

How to care

Pruning No pruning required

Pests Generally pest free

Diseases Generally disease free

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