Ames St. John's Wort
Hypericum kalmianum
Height:
2 - 3 ft.
Width:
2 - 3 ft.
Flower Color:
Yellow
Foliage Color:
Green
Foliage Type:
Deciduous
Bloom Time:
Mid-Summer
Exposure:
Sun
Shape:
Rounded
Moisture Level:
Moist, Well Drained
Zones:
4 - 7
Native Range:
North America
The Gardener's Notepad
Hardier than most Hypericum selected at Iowa State University. Nice yellow flowers. Artistic seed capsules remain on the plant through winter.