How to Manage Pests

Pests in Gardens and Landscapes

Forsythia—Forsythia spp.
Family Oleaceae (Olive family)

Plant Identification

Forsythia spp. are fountain-shaped deciduous shrubs.  Some species can be trained as a vine.  During the growing season, shrubs produce rounded leaves with pointed tips.  In late winter through early spring, yellow flowers form on bare branches. 

Optimum conditions for growth

Forsythia spp. are planted in borders or can be used as a screen or ground cover.  Plants do best in full sun with moderate to regular amounts of water.  Flowers may be killed by frost in very cold climates.  Forsythia spp. tolerate most soil types.  Remove old branches and dead wood.

New growth of forsythia
Foliage and new growth of Lynwood gold forsythia

Pests and disorders of Forsythia spp.


Environmental disorders



Foliage of forsythia
Foliage of Lynwood gold forsythia

Statewide IPM Program, Agriculture and Natural Resources, University of California
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