Aconitum napellus · Ranunculaceae

Monkshood

⚠️ Not safe for petsDeciduous plant that loses its leaves in winter.60 to 100 cm

LightPartial shade

WaterFrequent watering to keep the soil moist.

DifficultyMedium

ColdResists light frosts down to minus 5 degrees Celsius.

Partial shadeFrequent watering to keep the soil moist.MediumResists light frosts down to minus 5 degrees Celsius.

Description & origin

Monkshood is a perennial plant known for its helmet-shaped blue flowers. It is ideal for partial shade gardens and requires moist soil. This plant is appreciated for its beauty and cold resistance.

Size

Can reach up to 100 cm in height under ideal conditions.

Foliage

Deciduous foliage that disappears in winter.

Flowering

Blooms in summer with characteristic blue flowers.

Detailed care

Light

Prefers partial shade locations, avoiding intense direct sunlight.

Soil

Requires well-drained soil rich in organic matter.

Watering

Keep the soil consistently moist, especially during growth.

Temperature

Tolerates cold well but prefers temperate climates.

Fertilising

Fertilize in spring with a balanced fertilizer to promote growth.

Repotting

Transplant in spring when necessary, ensuring enough space for growth.

Pruning

Remove wilted flowers to encourage new blooms.

Propagation

Propagates by dividing rhizomes in spring or autumn.

Common problems

Toxicity

All parts of the plant are toxic if ingested.

Root rot

Occurs in poorly drained or overwatered soils.

Powdery mildew

Fungus affecting leaves in high humidity conditions.

Uses & curiosities

In the garden

Borders
Shade flower beds
Perennial flower gardens

Other uses

Used in traditional medicine, but with caution due to toxicity.

Did you know…

Historically, Monkshood was used in traditional medicine, but it is highly toxic.