Aconitum (monk's hood) — Clump forming

Overview

Aconitum is a clump forming herbaceous perennial in the genus Aconitum, part of the Ranunculaceae family, with deciduous foliage. Aconitum grows best in partial shade, and tolerates clay and loam soils and any pH. Its UK hardiness is rated H7. Suggested uses include cottage and informal garden, wildlife gardens and architectural.

Growing conditions

Best soil and position for Aconitum

Sunlight: Partial shade
Soil type: Clay, Loam
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained, Well-drained
Aspect: North-facing, West-facing, East-facing
Exposure: Sheltered
UK hardiness: H7

Plant details

Aconitum size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump forming
Foliage: Deciduous
Suggested uses: Cottage and informal garden, Wildlife gardens, Architectural

Care notes

Pruning and caring for Aconitum

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
Pest resistance: Generally pest-free but may be susceptible to aphids
Disease resistance: May be susceptible to fungal stem rot, powdery mildews, and Verticillium wilt

Frequently asked questions

Where is the best place to plant Aconitum?

Aconitum prefers partial shade. It suits sheltered positions.

What soil does Aconitum need?

Aconitum grows best in clay and loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.

Is Aconitum hardy in the UK?

Aconitum has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Aconitum?

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.

More in the Aconitum genus

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