Eupatorium perfoliatum

Common Boneset is a wildflower species that can grow up to 1.5 m in height. This plant may also be known by the common name Thoroughwort. The leaves are oppositely arranged, dark green coloured, lanceolate shaped, wrinkly, have long narrow tips, serrated margins, and distinctively unite through the plant’s hairy stem. The flowers are tiny, white coloured, appear in flat-topped clusters, and bloom between July and September. The flowers are beneficial to pollinator species, like bees and butterflies. All parts of the plant are toxic. This wildflower spreads well and can be used to naturalize un-vegetated areas.

Common Boneset grows best in moist to wet conditions with full or partial sun exposure. It prefers poorly drained sandy, clay, or humus soil types. It can tolerate wet soil and periodic flooding. This wildflower can be naturally found in moist forests, wet fields, bogs, and along stream or lake shorelines.

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Scientific Name: Eupatorium perfoliatum
Type: Ground Cover
Height: 1.5 m
Spread: 2 m
Moisture Level: moist, wet
Light Conditions: full sun, part sun
Soil Conditions: sand, clay, loam
Zone (Hardiness of Canada):