How to Manage Pests

Pests in Gardens and Landscapes

Watering asparagus

Asparagus may be irrigated by furrow, sprinkler, or drip irrigation. Avoid wetting the foliage and spears with overhead watering. The frequency of irrigation is determined by soil type and climate. In desert areas, South Coast, and Central Valley, asparagus may be irrigated every 10 to 14 days in spring. In the summer, irrigate every 7 to 10 days. Each irrigation should be long enough to wet the soil several feet deep. In the Delta Area, in coastal valleys, or in the Pacific Northwest less spring irrigations and fewer summer irrigations would be required. Irrigation is usually stopped in September or October so that the plants will go dormant. The ferny part of the plant is allowed to dry down and then is removed before the spears begin to grow the following spring.

Row wateringPlace a hose or drip tape between rows of plants

Furrow irrigation
Furrow irrigation


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