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Herbaceous Perennial

Aconitum napellus subsp. vulgare 'Albidum'

white monk's hood

Clump-forming herbaceous perennial to about 1.5m in height, with dark green, finely divided, dark green leaves with narrow leaf lobes, and unbranched spires of hooded white flowers, slightly flushed grey, from mid to late summer

Synonyms
Aconitum napellus 'Albidum'
Aconitum napellus 'Album'
see moreAconitum napellus 'Albiflorus'
Aconitum carmichaelii 'Album'
Aconitum compactum album
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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Clay
Loam
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Grey Silver Green
Autumn Green
Winter
Position
  • Partial shade
Aspect

North–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H7
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
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

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

Propagation

Propagate by division in autumn or late winter to maintain vigour but plants may be slow to re-establish. Use protective gloves when handling any part of the plant

Suggested planting locations and garden types
  • Cottage and informal garden
  • Wildlife gardens
  • Architectural
  • Flower borders and beds
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

Get involved

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