How to Manage Pests

Pests in Gardens and Landscapes

Hypericum, Gold flower, St. Johnswort—Hypericum spp.*
Family Hypericaceae (St. John's-Wort family)

Plant Identification

Hypericum is an evergreen, semievergreen, or deciduous shrub or perennial.  Flowers are yellow and resemble roses.  They may be produced singly or in clusters. 

*Some species of Hypericum are invasive weeds. Other types of plants may be better choices when planting.

Optimum conditions for growth

Hypericums are planted as ground covers, hedges, or borders.  They do well in areas with full sun but require partial shade in very hot climates.  Provide moderate to regular amounts of water.  They do best in mild, moist areas.  Reduce disease development by avoiding overhead watering in the evening.

Flower of hypericum
Flower of hypericum

 

Pests and disorders of Hypericum spp.

Invertebrates

Diseases

Environmental disorders

Weeds

Vertebrates

Flower and leaves of hypericum
Flower and foliage of hypericum

Foliage of hypericum
Foliage and flower bud of hypericum


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2014 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   /PMG/GARDEN/PLANTS/hypericum.html revised: January 8, 2014. Contact webmaster.