Eupatorium perfoliatum

Also called Thoroughwort

AKA Eupatorium truncatum
Flat-topped to domed clusters of white flowers
Textured opposite mid-green leaves
Central stems are covered with long white hairs
Fragrant flowers
Bloom Time: Summer

ZONE:
4

COLOUR:
White

HEIGHT:
90-125 cm

SPREAD:
60-90 cm

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Growing and Maintenance Tips:

Often late to emerge in the spring, they grow best in an average, medium to wet, well-drained soil, in full sun to partial shade. Very adaptable to most conditions and become drought tolerant once established. In full sun and extended dry periods leaves may scorch. Pinch back stems in June to encourage a more compact, bushy plant. If planted in deep shade, Eupatorium will become leggy and require staking. The overall height and width of Eupatorium can vary depending on its growing conditions. Spent flowers can be left for winter interest and food for birds.

Additional Notes about Boneset:

Native to Ontario

Cornerstone species for biodiversity!
Larval food source for many moths including the striking Clymene moth. Summer nectar source for hummingbirds, countless bees and insects, and many butterflies, including the colourful Painted Lady and our beloved Monarchs. The seeds are enjoyed by small birds, including the Swamp Sparrow.