Eupatorium cannabinum

Common Hemp-agrimony

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Hardy perennial herbaceous wetland plant with grey-green leaves and clusters of pink-purple flowers, native to Europe and Asia.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Common Hemp-agrimony
Family Asteraceae
Genus Eupatorium
Species Cannabinum
Origin Europe / Asia
Blooming Pink-purple flower heads in summer to autumn
Leaf Color Grey-green / Blue-green, hairy texture
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Moist, fertile soil; tolerates wet or boggy conditions effectively.

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Watering

High water requirement, prefers consistently moist to wet soil, does not tolerate drought well.

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Sunlight & Care

Prefers full sun but tolerates partial shade; thrives in moist environments.

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Fertilization

Moderate fertility needed, apply compost or balanced fertilizer in spring for vigorous growth.

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Pruning

Cut back dead stems in late autumn or early spring; deadhead to prevent self-seeding if desired.

Pest Control Aphid Leaf Miner Rust Fungi Thrip

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 3 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
23° – 90°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
60% – 95%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
1000 – 35000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
5 – 30
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
70% – 90%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Eupatorium cannabinum? Select a symptom to diagnose and fix the issue.

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