Hypericum moserianum is a hybrid relative of St. John's wort, which is famous for its medicinal properties. Hypericum moserianum is more commonly grown as an ornamental ground cover. It has attractive variegated green, white and pink leaves and small, yellow butter cup-like flowers that bloom in summer. It is quite easy to maintain with regular watering, intermittent fertilization and annual pruning in early spring before new growth begins.
Use a pair of sharp, disinfected (with a 10-percent alcohol solution) lopping shears to prune Hypericum moserianum to within 3 inches of the ground.
Spread 2 inches of aged compost around the base of the plant. Do not allow the compost to touch the base of the plant. This additional fertilizer will help the Hypericum moserianum come back quickly.
Deadhead or pinch off the Hypericum moserianum's flowers in late summer after they begin to fade. This will stimulate the plant to produce more blooms in place of the old ones.
After the Hypericum moserianum is done flowering in fall, shape the stand. Use sharp, disinfected pruning shears to trim any overgrown or unwanted shoots back to their point of origin.