Eupatorium purpureum

Purple Joe-Pye Weed

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A robust perennial herb native to North American wetlands, featuring whorled leaves and fragrant purple flower clusters blooming late summer.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Purple Joe-Pye Weed
Family Asteraceae
Genus Eupatorium
Species Purpureum
Origin North America
Blooming Fragrant pink-purple flower heads in late summer to autumn
Leaf Color Green with purple tints on stems
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, moist soil; tolerates clay and wet conditions typical of rain gardens

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Watering

High water demand; keep soil consistently moist as it is a native wetland plant

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Sunlight & Care

Prefers full sun for best flowering, tolerates partial shade in hot climates

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Fertilization

Apply balanced slow-release fertilizer once in spring before growth begins

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Pruning

Cut back to ground level after first frost or in early spring

Pest Control Aphid Beetle Leafhopper

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 8 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
-4° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
water_drop
Humidity
40% – 90%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
5000 – 80000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 4000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
40% – 80%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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