Hypericum punctatum (Spotted St. John’s Wort)

Very similar in appearance to the invasive Common St. John’s Wort (Hypericum perforatum), this perennial can be most easily distinguished from other St. John’s Worts by dark dots or streaks on the flower petals. New leaves are also covered in black glands.

Landscape size: up to 3 feet

Bloom Color: Yellow

Bloom Time: June, July

Growing Conditions

  • Light Requirement: Part Shade
  • Soil Moisture: Medium
  • Habitat: woodland edges, prairies, savannas, and streambanks

The clusters of yellow flowers are primarily bee pollinated. The foliage is mildly toxic to mammalian herbivores, so it is a great deer-resistant option. Leaf sap can also cause skin irritation when exposed to sunlight.

Description

Photo Attribution

DouglasGoldman, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons

USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA, Public domain, via Wikimedia Commons