OK
In progress indicator

Aconitum napellus (Monkshood)

Beginner
skill rating
1 hour care
per year
1.5m
Max height
0.5m
Max spread
2-5 years
To maturity
Low
Toxicity

Plant details

Botanical name

Aconitum napellus

Other names

Monkshood

Genus

Aconitum Aconitum

Species

A. napellus - A. napellus is a tall perennial producing racemes of purple flowers in mid-summer.


Aconitum napellus is: Deciduous

Habit

Clump-forming, Upright

Toxicity

All parts highly toxic if eaten; also harmful via the skin.

Awards

RHS AGM (Award of Garden Merit)

Flower

Bright-blue in Summer

Foliage

Dark-green in Summer

How to care

Watch out for

Pests

Generally pest free

Powdery mildew Powdery mildew

General care

Pruning

Cut down plants in autumn.

Propagation

Propagate by division between autumn and spring.

Propagation methods

Division


Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions

Where to grow

Aconitum napellus (Monkshood) will reach a height of 1.5m and a spread of 0.5m after 2-5 years.

Suggested uses

Coastal, Flower Arranging, Beds and borders

Cultivation

Best grown in cool, moist, fertile soil under partial shade. Can also tolerate most soils and full sun (if soil is improved with well-rotted organic matter and mulched.)

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

North, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Aconitum napellus

Other names

Monkshood

Genus

Aconitum Aconitum

Species

A. napellus - A. napellus is a tall perennial producing racemes of purple flowers in mid-summer.

Foliage

Deciduous

Habit

Clump-forming, Upright

Toxicity

All parts highly toxic if eaten; also harmful via the skin.

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Bright-blue in Summer

Foliage

Dark-green in Summer


How to care

Watch out for

Pests

Generally pest free

Specific diseases

Powdery mildew

General care

Pruning

Cut down plants in autumn.

Propagation

Propagate by division between autumn and spring.

Propagation methods

Division


Monthly care advice


Where to grow

Aconitum napellus (Monkshood) will reach a height of 1.5m and a spread of 0.5m after 2-5 years.

Suggested uses

Coastal, Flower Arranging, Beds and borders

Cultivation

Best grown in cool, moist, fertile soil under partial shade. Can also tolerate most soils and full sun (if soil is improved with well-rotted organic matter and mulched.)

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

North, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

In order to add a note on this plant, please add this plant to your plant lists.

In progress indicator
Full size image
In progress indicator
Caption

Caption

Cancel and close this form
In progress indicator
This plant likes... Garden match
Soil types: Clay, Loamy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade Tell us...
Aspect: North, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

Aconitum napellus

Monk's-hood makes a magnificent garden plant. Its flowers are visited by bumble bees. Care is needed, however, as all parts of the plant are very poisonous and contact with the foliage may cause skin… read more

There are 2 active discussions about Aconitum napellus (Monkshood)

View all discussions

GARDENS WITH THIS PLANT

My Garden
My Garden
Palustris Catz
My Garden
My Garden
erica
Cornwall
Cornwall
Joanne
My Garden
My Garden
Patricia Burton
My Garden
My Garden
Scottiedog
My Garden
My Garden
Anne Adrienne Colley
Main garden
Main garden
Peter
Old garden
Old garden
Sue Kunzmann
Emily's Back Garden
Emily's Back Garden
EMILY BOWES

ARTICLES WITH THIS PLANT

Faith Ramsay and Louise Hay Case Study

Garden designer, Faith Ramsay of My Country Design Solutions introduced her client to Louise Hay to Shoot. read more

Gardening for bumblebees

By Bumblebee Conservation Trust. Wildflowers have become scarce in the countryside because we've lost  many traditional habitats like hedgerows, hay meadows and chalk grassland. Wherever you… read more


Report content or feedback to Shoot

To add ? to your lists,
login to your account or subscribe.

Find out more about plant lists here

or Login


To check if this plant is suitable for your garden first login to your account or subscribe.

or Login

In progress indicator
Note

Note

You are adding a note to: ?

Cancel