• 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

Actaea simplex Atropurpurea Group

baneberry Atropurpurea Group

  • Other common names baneberry Atropurpurea Group

  • Synonyms Cimicifuga racemosa 'Purpurea'
    Cimicifuga simplex var. simplex Atropurpurea Group

    Cimicifuga simplex 'Blackthorn Strain'
    Cimicifuga ramosa 'Atropurpurea'
    Cimicifuga simplex 'Atropurpureum'
    Cimicifuga racemosa 'Atropurpurea'

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  • Family Ranunculaceae

  • Genus Actaea are rhizomatous herbaceous perennials with compound leaves and small creamy-white flowers in short, erect, simple or branched terminal racemes, followed either by poisonous red, black or white berries, or by star-shaped clustered brown follicles

  • Details Atropurpurea Group are upright plants with brown-purple stems and foliage, and dense spikes of small, fragrant, white flowers in early autumn, often tinted purple in bud. There are a number of named cultivar within this group, chosen for their very dark leaves. Leaf and stem of un-named forms can vary; for best results choose plants in leaf


  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • 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)




  • Partial Shade

  • Aspect East-facing or North-facing or West-facing

  • Exposure Sheltered


  • Clay


  • Loam


  • MoistureMoist but well-drained, Poorly-drained

  • SoilClay, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in cool, moist, moderately fertile soil, enriched with organic matter. Water thoroughly in dry weather

Propagation Propagate by seed sown in pots in a cold frame in autumn or by division in early spring

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

How to care

Pruning Cut back after flowering or fruiting

Pests Generally pest free

Diseases Generally disease free

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