How to Prepare Your Lawn for Summer Heat in Utah
Raise Your Mowing Height
The single most important thing you can do for your lawn before summer is raise your mowing height. Taller grass develops deeper root systems that can access moisture deeper in the soil. In Utah, set your mower blades to 3-4 inches for cool-season grasses.
Adjust Your Watering Schedule
Utah lawns need about 1-2 inches of water per week during summer, including rainfall. Water deeply and infrequently to encourage deep root growth. Water early in the morning between 4 AM and 8 AM when evaporation is lowest.
Apply Summer Fertilizer
Fertilize in late spring with a slow-release nitrogen fertilizer. Choose a formula like 28-0-6 or 30-0-4. Slow-release formulas feed the lawn gradually over 6-8 weeks without burning in hot weather.
Manage Weeds Before Summer
Apply pre-emergent herbicide in early spring to prevent summer weeds. For existing weeds, spot-treat before temperatures exceed 85°F. A weed-free lawn has less competition for water.
Aerate and Overseed
Late spring is the best time to aerate your Utah lawn. Aeration relieves soil compaction and improves water infiltration. After aerating, overseed thin areas to thicken the lawn before summer stress.
Frequently Asked Questions
When should I start preparing my lawn for summer in Utah? Begin preparations in late April to early May.
How often should I water my Utah lawn in summer? Most lawns need 1-2 inches of water per week over 2-3 watering sessions.
Should I let my lawn go dormant in summer? If you choose dormancy, water deeply once every 2-3 weeks to keep the crown alive.
Can I mow during a heat wave? Yes, but mow higher at 4 inches and avoid the hottest part of the day.