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Aconitum noveboracense

northern blue monkshood add to wishlist

Plant types and subtypes: Perennials

Light Requirements: part-shade, shade

Water Use: medium

Soil Moisture: moist

Soil Description: acid, rich, loam

Height: 1'-4'

Bloom Time: June, July, August, September

Bloom Color: purple, blue

Leaf Color: green

Hardiness Zone: 4, 5, 6

Additional Tags: naturalizing, pond margin plant, rare, stream margin plant

Aconitum noveboracense (northern blue monkshood)
  • Aconitum noveboracense (northern blue monkshood)

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Aconitum noveboracense

Also known as:

northern blue monkshood


northern wild monkshood


northern monkshood

Scientific Synonyms:


The showy basal leaves of Aconitum noveboracense are large, toothed and deeply lobed. It produced a single 4' tall stem that is terminally divide and bears much smaller and sparsely set leaves. The flowers are beautiful, blue, and unusual resembling an ornate hood about 1" across.


Northern monkshood is intolerant of heat and high humidity. It is found growing on well-drained, rich slopes in full to part shade, and along streams and other water features. It requires cool soil and good air circulation. blooms from Jun to July. Zones 4-6


Propagate from seed or by division.

Additional Notes

Aconitum noveboracense is endangered or threatened in all of its native range. It is very rare, with native populations recorded in only a handful of counties over 4 states.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:

USDA Endangered Status:

  • Endangered: OH
  • Threatened: IA, NY, WI


Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Magnoliidae
Order Ranunculales
Family Ranunculaceae Buttercup family
Genus Aconitum monkshood
Species Aconitum noveboracense northern blue monkshood