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How to Manage Pests

The UC Guide to Healthy Lawns

Zone 4 - Cool-season grasses

Illustration of zone 4

Cool-season turfgrasses actively grow in the spring and fall and should receive most of their fertilizer during those times of the year. Limit fertilization during the high temperature summer months.

Recommended months to
fertilize (in bold)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep*
Oct*
Nov
Dec

*Use a complete fertilizer for one of these months if necessary.


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