Hypericum kalmianum
Kalm St. Johnswort
"
This St. Johnswort is an underused shrub reaching a height of 1m. Suited to dry, lean soils with a full exposure it is best planted in mass for effect. Delicate seed heads that adds minor winter interest to the garden follows typical bright yellow flowers of Hypericum species. Full sun and lean soils are preferable; it tends to get leggy in partial shade.
"