Hypericum calycinum, St. John’s wort, is a versatile woody, deciduous shrub/groundcover. This plant is particularly great on sloped areas that are tricky to weed and hard to grow grass on. It can tolerate a wide range of soil types, and is happiest in full sun. The bright yellow flowers bloom in July and August. Cut this back every 2 or 3 years in late winter/early spring to keep it looking full and flowering well.