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Aconitum napellus
Aconitum napellus

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Zones A1-A3, 1-9, 14-21, 34-45
Full SunPartial Sun
Full, Partial
Regular Water
All parts are poisonous if ingested.

Aconitum napellus

Garden Monkshood
Perennials, Flowers


Leaves, usually lobed, are held in basal clusters. Flowers shaped like hoods or helmets appear along tall spikes. Monkshood has a definite place under trees, at the back of flowerbeds, or even at the edge of a shaded bog garden. Good substitute for delphinium in shade.

Needs some winter chill; hard to establish in warm, dry climates. Sow seeds in spring, or sow in late summer or early fall for bloom the next year. Moist, rich soil for best growth and bloom. Divide in early spring or late fall, or leave undivided for years. Dies back in winter; mark site.

Aconitum napellus

Native to Europe. Upright leafy plants 2–5 ft. high and about 1 ft. wide. Leaves 2–5 in. wide, divided into narrow lobes. Late summer flowers usually blue or violet, in spikelike clusters.

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