Hypericum ascyron - Great St. Johnswort

Sizes available: TBD, coming in 2026

Basics: zones 3-6, 2-5' x 1-3 ', full sun to part shade, cheerful, golden yellow blooms in mid summer, although it's native habitat is wetlands, it does not need this much moisture to do well, but does prefer a consistently moist, slightly acidic and nutritious soil.

Common names: Great St. Johnswort

Synonym: Hypericum pyramidatum

Family: Hypericaceae (Clusiaceae)

Origin/Distribution: This plant is native to New England except for Rhode Island. And it is both rare and endangered in all of our region. Its range extends south into New Jersey and Pennsylvania and west to Indiana and parts of Kansas and Iowa. It is also native to eastern and central Asia. Native to northern Maine.

Habitat: Found in riparian forest, low places in fields, river and stream banks, marshes, lake shore, flood plain, wet thickets.

More: Has been used medicinally. More information coming soon.

Source: sown at Honey Petal Plants with seed from Toadshade Wildflower Farm

Image credits: Image from A Flora of the State of New York by John Torrey, 1843, H.pyramidatum is a synonym of H. ascyron