Lawn Care Schedule for Phoenix, Arizona
Arizona's dual-season lawn approach is well established: Bermuda dominates in summer while cool-season ryegrass is overseeded each fall to maintain winter color during Bermuda's dormancy.
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Bermuda lawns face relatively few pest pressures in Arizona's arid climate, though white grubs occasionally appear in irrigated turf.
Recommended Grass Types for Phoenix
Month-by-Month Treatment Calendar
Minimal irrigation needed during the mild, dry winter across the low desert and inland valleys
Apply as soil warms — Phoenix-area low desert typically leads the inland Central Valley by a few weeks
Primary application window across most of this zone
Spring feeding as warm-season grass greens up
Irrigation demand rises quickly as desert and inland-valley heat builds
Continue feeding through peak spring growth
Irrigation efficiency is critical — evaporation rates climb quickly in the desert; Central Valley and Inland Empire lawns need consistent deep watering as the dry season sets in
Peak irrigation demand of the year across the desert and inland valleys
Monitor for damage; pressure is lower than humid climates but not absent in irrigated turf
Last summer feeding before tapering for fall
Continue consistent irrigation through late-summer heat
Overseed prep feeding if transitioning to winter ryegrass
Overseed with ryegrass for winter color if desired
Reduce irrigation as temperatures cool and warm-season grass slows toward dormancy
Minimal irrigation; flush desert soils periodically to manage salt accumulation
Related Guides
Treatment Guides for the Transition Belt
Fertilization
Feed your lawn at the right time — not on the bag's schedule.
Pre-Emergent
Stop crabgrass before it starts — timing is everything.
Overseeding
Thicken thin turf and fill bare spots during the optimal seeding window.
Aeration
Break up compaction and open the soil to water, air, and nutrients.
Watering
Water deep and infrequent — not shallow and daily.
Grub Control
Prevent root damage before you see it — curative treatments are less effective.
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