Kalm St. Johnswort
Hypericum 'Kalmianum'
Height: 30". Spread: 30".
Light requirement: full sun to part shade.
Growth rate: moderate. Habit: rounded.
Flowering - time/color: summer/golden yellow.
Foliage - spring/summer: blue-green.
Foliage - fall:  
Fruit:  
Attributes: showy golden yellow summer flowers.