Sweetscented Joe Pye Weed

Eutrochium purpureum

Native to:
Canada, United States, Virgin Islands

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Eutrochium
Species:
Eutrochium purpureum
USDA Symbol:
EUPU21

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
244 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep
Bloom Colors:
pink, purple

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★★★☆☆ Documented Lepidoptera association (GBIF)

Host Plant for Caterpillars

bold-feathered grass moth (Herpetogramma pertextalis), common eupithecia (Eupithecia miserulata), Eupatorium Plume Moth (Oidaematophorus eupatorii), Hellinsia homodactylus, Joe-Pye weed borer moth (Papaipema eupatorii), larch needleworm moth (Endopiza slingerlandana), Oidaematophorus cretidactylus, red groundling moth (Perigea xanthioides), Schinia bifascia, T-moth (Emmelina monodactyla), Three-lined Flower Moth (Schinia trifascia)

Reported Fauna Sightings

Bees: Bombus Latreille, Brown-belted bumble (Bombus griseocollis), Common eastern (Bombus impatiens), Eastern Carpenter Bee (Xylocopa virginica), Half-black bumble (Bombus vagans), Lemon cuckoo (Bombus citrinus), Red-belted bumble bee (Bombus rufocinctus), Tri-colored bumble (Bombus ternarius), Zadontomerus Ashmead Moths:Atteva aurea Butterflies:Common Buckeye (Junonia coenia), Eastern Tiger Swallowtail (Papilio glaucus), Fiery Skipper (Hylephila phyleus), ⚠️Monarch butterfly (Danaus plexippus), Silver-spotted Skipper (Epargyreus clarus), Summer Azure (Celastrina neglecta)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
prefers habitats like woodlands and meadows

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–30 days
Notes:
Seeds require cold stratification for 60-90 days; surface sow on moist medium and keep at 20-25°C.

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society

Where to Buy

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