- Common Name(s):
- Kalm's St. John's wort
Drought tolerant; more loose and open than other hypericum; most cold-hardy hypericum
- 2-4 ft.
- Opposite, simple, bluish green leaves; 1-2 in. long
- 1-1.5 in. yellow flowers in summer
- 4 to 7
- Sun to partial shade; range of soil types; tolerates dry soil
- Stout, stiff, erect stems; rounded, dense, compact
- 3-4 ft.
NCCES plant id: 1579