As temperatures rise, May is the time to fine-tune your landscape care routine to keep plants healthy while using water efficiently:

  • Water trees deeply: Encourage strong root growth by watering less frequently but more thoroughly.
  • Mulch for moisture: Apply organic mulch around citrus, roses, and perennials to help retain soil moisture and regulate temperature.
  • Stay ahead of weeds: Remove fast-growing weeds early to prevent them from competing for water and nutrients.
  • Watch for chlorosis: Yellowing leaves may indicate iron deficiency—treat with soil acidifiers as needed.
  • Check your irrigation system: Inspect for leaks, overspray, or runoff to avoid water waste and ensure proper coverage.

May Irrigation Guide

Adjust your watering schedule to match seasonal needs:

  • Water-Efficient Shrubs: 0.9 gallons per day (water 6 days per week)
  • Water-Efficient Trees: 18 gallons per day (water 6 days per week)
  • Non-Desert Trees: 60 gallons per day (water 6 days per week)
  • Turf Grass: Spray systems: 12 minutes per day, 7 days per week
  • Turf Grass: Rotor systems: 27 minutes per day, 7 days per week

Making small adjustments now can help your landscape thrive through the warmer months while conserving water. Or apply for a smart controller that will adjust your irrigation run times for you. Visit your water agency’s website for more information on rebates.

For rebate information and water-wise landscaping resources, be sure to check out all our resources page here.