Eupatorium perfoliatumBoneset
Family:Asteraceae
属:泽兰属
common name:Boneset
introduce:Plant Type: Herbaceous perennial
Family: Asteraceae
Missouri Native: Yes
Native Range: Southeastern United States
Height: 4 to 6 feet
Spread: 3 to 4 feet
Bloom Time: July - September
Bloom Color: White
Sun: Full sun to part shade
Water: Medium to wet
Maintenance: Low
General Culture:
Easily grown in average, medium wet to wet soils in full sun to part shade. Does well in both sandy and clay soils. Needs constant moisture.
Noteworthy Characteristics:
Boneset is a large, hairy, clump-forming, Missouri native perennial which typically occurs in wet soils in low woods, thickets, stream banks, meadows and prairies throughout the State. Flat-topped clusters (compound corymbs) of small, fluffy, white flowers appear above the foliage in late summer to fall. Perfoliate foliage is quite distinctive: the bases of the pairs of wrinkled, opposite, lance-shaped, medium green leaves unite to surround the hairy stems (perfoliatum meaning through the foliage). Historically, boneset was commonly included in medical herb gardens and used as a folk medicine for treatment of flus, fevers, colds and a variety of other maladies. Though some authorities claim the name boneset refers to a former use of the plant to aid the healing process for broken bones, others claim that the name is in reference to the plants use as a diaphoretic in the treatment of an 18th century influenza called break bone fever. All parts of the plant are quite toxic and bitter. Also commonly called thoroughwort. Closely related to Joe-Pye weed (Eupatorium purpureum, C740).
Problems:
No serious insect or disease problems. Foliage may scorch if soils are allowed to dry out.
Uses:
Good size and late bloom for borders, native plant gardens, wildflower gardens, cottage gardens, woodland gardens or banks of ponds or water gardens.
