• AGM plants

    AGM plants have been through a rigourous 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

Macleaya microcarpa 'Kelway's Coral Plume'

Plume poppy 'Kelway's Coral Plume'

AGM plants

AGM plants have been through a rigourous 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
Plume poppy 'Kelway's Coral Plume'

© � RHS 2002

  • Other common names Plume poppy 'Kelway's Coral Plume'

  • Synonyms Macleaya microcarpa 'Coral Plume'

  • Genus Macleaya are large herbaceous rhizomatous perennials with handsome palmately lobed leaves and large airy panicles of tiny flowers

  • Family Papaveraceae / Papaveraceae

  • Species 'Kelway's Coral Plume' is a vigorous, spreading herbaceous perennial to 2m in height, with large, rounded and lobed grey-green leaves, whitish beneath. Tiny buff-pink flowers are carried in large, airy terminal panicles

Characteristics

  • Foliage Deciduous

  • Habit Spreading _ Branched#Spreading / Branched

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H6

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Clay

  • MoistureMoist but well-drained, Well-drained

  • SoilSand, Loam, Chalk, Clay

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    1.5-2.5 metres

  • Ultimate spread

    1.5-2.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Best in a deep, moderately fertile soil that is moist but well-drained; but will tolerate most soils. It needs plenty of space and can be invasive on sandy soils. For the best foliage, provide shelter from cold winds; likes sun but tolerates partial shade

Propagation Propagate by division in late autumn or spring or separate root rhizomes when dormant in winter and treat as you would root cuttings

Suggested planting locations and garden types Flower borders and beds Architectural Cottage & Informal Garden

How to care

Pruning Cut down to the base in late autumn

Pests Generally pest free

Diseases Generally disease free

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