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
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
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.
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