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How to Manage Pests

Pests in Gardens and Landscapes

Sweet pea—Lathyrus odoratus

Family Fabaceae

Plant Identification

Sweet peas are either annual or perennial plants. Some are trailing types that may trail over rocks, fences, or trellises. Bush types may do well in borders, beds, or pots. Flowers have one large round petal surrounded by two narrow side petals and two lower petals. Flowers vary in color and may be pink, red, purple, white, or blue. They bloom in late spring and summer and even through the fall in cool climates. Sweet peas attract butterflies.

Optimum conditions for growth

Sweet peas do well in areas with full sun. Water requirements vary by species. Regular fertilizing keeps plants healthy. In warm winter areas, plant early for early spring bloom.  

Pink blossoms
Pink blossoms

Pests and disorders of Lathyrus odoratus

Invertebrates

Diseases

Diseases (cont.)

Environmental disorders

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Vertebrates


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2008 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 How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/GARDEN/FLOWERS/sweetpea.html revised: January 17, 2008. Contact webmaster.