Aconitum napellus

common monkshood

  • © - Jean-Pol GRANDMONT

  • © - Bernd Haynold

Outstanding Qualities

Strong upright stems are topped with violet-blue flowers in mid summer. Lacey green foliage that lines the stems acts as a soft feathery foil for the blooms. This is an excellent substitute for high maintenance delphinium.

Quick Facts

Plant Type: upright perennial

Foliage Type: deciduous

Plant Height: 4 ft. 0 in. (1.22 meters)

Plant Width/Spread: 3 ft. 0 in. (0.91 meters)

Hardiness: USDA Zones 3 to 8

Flower Color: blue, violet

Sun/Light Exposure: full sun to light or open shade

Water Requirements: frequent to regular watering

Seasonal Interest: this perennial will reach full bloom in mid-summer

Wildlife Associations: bees

Resistant to: rabbits, deer

Colors & Combos

Great Plant Combinations: Artemisia lactiflora Guizhou Group, Aster lateriflorus ‘Prince’, Geranium ‘Gerwat’ ROZANNE™, Lilium regale

Great Color Contrasts: orange, red, yellow

Great Color Partners: pink, purple, silver, white

Culture Notes
This monkshood grows best in rich moist to well-drained soils and sandy soils. It prefers regular watering during dry weather. If grown in sandy soils provide frequent watering, as monkshood resents drying out. Avoid hot locations. Plant this perennial in full sun to light or open shade. Stems are stronger in full sun, but flowers will tend to fade faster. In light or open shade the flowering stems can lean, but the intense flower color will last longer.
Geek Notes
The drug 'aconite' is made from the roots of Aconitum. All parts of these plants are poisonous.