St. Johnswort | Hypericum kalm Ames Kalm

A hardy form of Hypericum, selected at Iowa State University. ‘Ames’ is a perfectly rounded shrub with masses of beautiful 1″ golden yellow flowers that bloom in mid summer.

Height: 2-3′
Spread: 2-3′
Shape: Rounded
Exposure: Full Sun
Foliage: Green
Fall Foliage: Insignificant
Zone: 4-7