Aconitum napellus

Monkshood

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Toxic herbaceous perennial with hood-shaped blue flowers. Prefers cool, moist soil and partial shade. Native to Europe and Asia. Handle with gloves due to aconitine toxins.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Monkshood
Family Ranunculaceae
Genus Aconitum
Species Napellus
Origin Europe / Western Asia
Blooming Foliage plant, blooms in late summer to autumn
Leaf Color Dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Moist, fertile, well-drained soil rich in organic matter; prefers clay or loam

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Watering

Keep soil consistently moist during growing season. Reduce watering after foliage dies back in autumn.

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Sunlight & Care

Partial shade to full sun depending on climate; protect roots from intense afternoon heat

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Fertilization

Apply balanced slow-release fertilizer in spring before growth begins. Avoid high nitrogen.

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Pruning

Cut back dead stems to ground level after frost. Deadhead spent flowers to prevent self-seeding.

Pest Control Aphid Leaf Miner Slug Snail

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 4 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 75°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 12000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 85%
% volumetric
Water content in the growing medium
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Soil EC
400 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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