Bushy St. Johnswort

(Hypericum densiflorum)

Bushy St. Johnswort (Hypericum densiflorum)

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Estimated Native Range
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Summary

Hypericum densiflorum, commonly known as Bushy St. Johnswort, is a deciduous shrub native to wetland margins, stream banks, and moist woodlands in the Southeastern United States. It typically grows between 0.5–2 m (1 ft 8 in – 6 ft 7 in) in height and features a dense branching habit with exfoliating coppery to reddish-brown bark. This shrub produces numerous small, bright yellow flowers from mid to late summer, which are highly attractive to pollinators such as bees and butterflies. The flowers are showy due to their abundance and contrast with the dark green foliage.

Bushy St. Johnswort is valued for its wildlife support, particularly as a pollinator-friendly plant. It is used in naturalistic plantings, rain gardens, and as part of mixed shrub borders. It is adaptable to a range of soil conditions, from wet to moderately dry, but prefers consistent moisture. While it can tolerate full sun to part shade, it thrives in part shade conditions, especially in the hotter parts of its range. It is generally low-maintenance but can be susceptible to rust and leaf spot diseases. This shrub is not known for aggressive roots or significant invasiveness issues.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub
  • Height: 5-6.5 feet
  • Width: 2-3 feet
  • Growth Rate: Slow
  • Flower Color: Yellow
  • Flowering Season: Summer
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium
  • Drainage: Fast, Medium, Slow

Common Uses

Bank Stabilization, Bee Garden, Bird Garden, Border Plant, Butterfly Garden, Deer Resistant, Drought Tolerant, Edible*Disclaimer: Easyscape's listed plant edibility is for informational use. Always verify the safety and proper identification of any plant before consumption., Erosion Control, Hedges, Low Maintenance, Potted Plant, Rock Garden, Salt Tolerant, Showy Flowers, Street Planting

Natural Habitat

Wetland margins, stream banks, and moist woodlands in the Southeastern United States

Other Names

Common Names: Dense St. John’s Wort, Rosmarinhyperikum

Scientific Names: , Hypericum densiflorum, Hypericum glomeratum, Hypericum prolificum var. densiflorum, Brathys prolifica, Hypericum rostratum,

GBIF Accepted Name: Hypericum densiflorum Pursh