How to Prune a Hypericum Moseranum


Hypericum moserianum is a variety of St. John’s Wort known as Goldflower. This deciduous shrub is cold hardy in U.S. Department of Agriculture Hardiness Zones 6 through 9 and may retain its leaves in the warmer zones. Hypericum moserianum can reach a height and width of about 3 feet and can grow in full sun to part shade. Its leaves, which are about 2 inches long, have a pinkish tinge with white border. The yellow blooms are about 1 1/2 inches in diameter and display from July to September. Pruning your Hypericum moseranum will keep it healthy and blooming.

Step 1

Prune damaged or diseased branches as they occur. Make a cut at least 6 inches into the healthy portion of the branch.

Step 2

Prune to thin out the plant in late winter before new growth appears. Cut out touching branches and old growth. Randomly choose branches to cut that will give the shrub an airy, less dense appearance. Cut the tips of the branches to retain height if desired.

Step 3

Prune all branches to 6 to 12 inches above the ground in late winter to control an overgrown Hypericum moserianum. Rather than making the cut straight across the top of the shrub, which can produce an unnatural growth pattern, randomly cut the branches at different lengths.

Tips and Warnings

  • Avoid pruning in late summer, which could promote new growth that may be killed by freezing temperatures.

Things You'll Need

  • Pruning shears


  • Kemper Center for Home Gardening: Hypericum x Moserianum 'Tricolor'
  • Texas A&M Extension: Follow Proper Pruning Techniques/Pruning Shrubs
Keywords: St. John's Wort, pruning shrubs, shrub care

About this Author

Barbara Raskauskas is a certified e-learning specialist and certified Microsoft Office specialist. She has written web content, technical documents and course material for a decade. Raskauskas now writes how-to's, product reviews and general topics published on several websites, including Demand Studios.