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Aconitum × cammarum 'Bicolor' AGM

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© RHS 2002

Characteristics

Plant type

Herbaceous Perennial

Habit

Columnar/Upright

Toxicity

All parts highly toxic if eaten; also harmful via the skin

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Blue and White in Summer

Foliage

Dark Green in Autumn, Spring and Summer

Size

Ultimate height

1-1.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

purple wolf's bane 'Bicolor'

Family

Ranunculaceae


Aconitum can be herbaceous perennials or biennials with lobed leaves and racemes or panicles of showy, hooded flowers

'Bicolor' is an herbaceous perennial to 1.2m, with deeply divided, glossy dark green leaves and widely-branched spikes of hooded, violet-blue and white flowers

Synonym(s)

  • Aconitum carmichaelii 'Bicolor'
  • Aconitum napellus 'Bicolor'
  • Aconitum × bicolor
  • Aconitum × stoerckianum

How to grow

Sunlight

  • Part shade

Aspect

  • East-facing, West-facing or North-facing
  • Sheltered

Cultivation

Best grown in cool, moist, fertile in partial shade, but will tolerate most soils and full sun if soil is improved with well-rotted organic matter and mulched

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Loam or Clay

Propagation

Propagate by division between autumn and spring

Suggested planting locations and garden types

Flower borders and beds, Cut Flowers, Coastal or Cottage/Informal Garden


How to care

Pruning

Cut down plants in autumn

Pests

Generally pest free

Diseases

May suffer from powdery mildews