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Herbaceous Perennial

Aconitum carmichaelii (Wilsonii Group) 'Barker's Variety'

monk's hood 'Barker's Variety'

A herbaceous perennial 1.5-1.8m high with upright stems and leathery leaves divided into three to five lobes, deep green above and pale green below, and dense panicles of hooded rich mid-blue flowers in early autumn

Synonyms
Aconitum wilsonii 'Barker's Variety'
Aconitum carmichaelii 'Barker's Variety'
see moreAconitum carmichaelii var. truppelianum 'Barker's Variety'

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Blue Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

North–facing or West–facing or South–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
TOXIC if eaten, avoid skin contact. Wear gloves and other protective equipment when handling
Genus

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

Name status

Accepted

How to grow

Cultivation

Grows best in deep, cool, moisture-retentive soil in partial shade, but will also tolerate most soils and full sun if soil is humus-rich and protected with mulch to ensure that it is moist throughout the growing season; provide support if needed; use protective gloves. See staking perennials for further advice

Propagation

Propagate by division in autumn or late winter; division every few years may encourage good flowering stems, though plants may be slow to re-establish; use protective gloves

Suggested planting locations and garden types
  • Architectural
  • City and courtyard gardens
  • Cottage and informal garden
  • Wildlife gardens
  • Flower borders and beds
  • Cut flowers
Pruning

No pruning required except cutting back dead stems; use protective gloves

Pests

Generally pest-free but may be susceptible to aphids

Diseases

May be susceptible to fungal stem rot, powdery mildews, and Verticillium wilt

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