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Monkshood Aconitum napellus 

 
 
Attracts BeesBees are attracted to this plant
Attracts ButterfliesButterflies are attracted to this plant
Perennial Life CyclePerennial life cycle
Two-Lipped FlowersTwo-lipped flowers
Blue FlowersBlue flowers
5 Petals5 petals
May-Sep Flowering
period
Divided LeavesDivided leaves
Lobe-Edged LeavesLobe-edged leaves
Round StemRound stem
Tap RootTap root
150cmMaximum height
 
 
  Main image of Monkshood

© 2020-2025 Adrian Briggs

 

Monkshood is a native perennial plant of the UK, typically found growing in damp areas and waste ground, to a mature height of up to 150cm.

Monkshood is named after the cowl-like shape of its large purple flowers. Another of its numerous common names is Wolfsbane, which refers to its highly-toxic properties and historical use to kill wolves. The presence of established Monkshood can be an indicator of ancient woodland.

Botanic classification and naming: Monkshood is a member of the Buttercup (Ranunculaceae) family. The genus name 'Aconitum' identifies the plant as a Aconite and its species name 'napellus' means 'turnip-rooted plant'.

Concerns: All parts of the Monkshood plant are extremely poisonous, containing potent nerve, heart and respiratory toxins. Note that these toxins can be absorbed by simply handling the plant.

Benefits: Despite its toxicity to most animals, Monkshood is a food plant for the caterpillars of several moth species.

Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.

 

 
Flower of Monkshood

© 2021 Adrian Briggs

 

Flowers:
Monkshood usually flowers between May and September.

Flower colour:

Flower Colour Blue

Blue

Flower shape:

Flower Shape  Two-lipped

Two-lipped

Petals:

Petal Number =  5

5

Leaf of Monkshood

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Divided

Divided

Leaf Margins:

Leaf Margin is lobed

lobed

Stem of Monkshood

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Round

Round

Root type:

Root Type is Tap

Tap