Landscape Watering Tips

Suggested WEEKLY Water Schedule by Month for spray-head irrigation systems during non-shortage situations

Month

Turfgrass Trees, Shrubs, Groundcover Notes
January 2 days, 2 cycles* of 2 minutes 1 days, 2 cycles* of 3 minutes Turn water off before the rain and let soil dry before turning water on again 
February 2 days, 2 cycles* of 2 minutes 1 days, 2 cycles* of 3 minutes
March 3 days, 2 cycles* of 3 minutes 2 days, 2 cycles* of 3 minutes March/April is the most active growth period for turfgrass and other plants. Be sure to water adequately.

April 3 days, 2 cycles* of 4 minutes 2 days, 2 cycles* of 4 minutes March/April is the most active growth period for turfgrass and other plants. Be sure to water adequately.

May 3 days, 2 cycles* of 3 minutes 2 days, 3 cycles* of 3 minutes
June 3 days, 2 cycles* of 5 minutes 2 days, 3 cycles* of 3 minutes
July 4 days, 3 cycles* of 3 minutes 2 days, 3 cycles* of 4 minutes
August 4 days, 3 cycles* of 3 minutes 2 days, 3 cycles* of 4 minutes
September** 4 days, 2 cycles* of 3 minutes 2 days, 2 cycles* of 4 minutes
October** 3 days, 2 cycles* of 3 minutes 2 days, 2 cycles* of 3 minutes
November** 2 days, 2 cycles* of 3 minutes 1 day, 2 cycles* of 4 minutes
December 2 days, 2 cycles* of 2 minutes 1 day, 2 cycles* of 3 minutes

            *By “cycling” your irrigation timer to turn on for the suggested number of minutes an hour apart, you reduce runoff and gain deeper watering and healthier root growth. Start with this weekly schedule and increase the times only if your plants show signs of stress. If stress occurs only in isolated area, check your irrigation system before increasing the time.

 

**In September, plants water needs drop by approximately 30 percent even if the temperature is hotter, for two reasons. First, the days are shorter, so evaporation decreases. Second, plants begin to go into a dormant phase where they need less water. In some years, humidity is also higher, increasing your level of discomfort, but decreasing plant water needs as it slows the rate of evaporation. This rapid drop in water needs will continue in October and November.