A brown lawn in July is not always dead. Knowing the difference between dormancy, drought, and disease tells you whether to water, wait, or call for help.
Every summer we get the same call: "My whole lawn went brown — is it dead?" Usually the answer is no. Cool-season grasses like the fescues and bluegrass common in Massachusetts naturally go dormant in heat. But brown can also mean a real problem, so it pays to know the difference.
Dormancy vs. dead
Dormant grass browns evenly across the lawn and bounces back when cooler, wetter weather returns. Dead grass shows up in irregular patches that do not recover. A simple test: tug a handful of brown grass. If it resists, the crown is alive and dormant. If it pulls out easily, that area is gone.
Common causes of summer browning
- Heat dormancy — normal, and recovers on its own
- Drought stress — needs deep, infrequent watering
- Cutting too short — scalped grass burns fast
- Grubs — turf lifts like a loose carpet
- Fungal disease — spreads in circles or patches
How to water through a heat wave
If you choose to keep the lawn green, water deeply once or twice a week in the early morning — about an inch total. Light daily sprinkles encourage shallow roots and make things worse. If you would rather let it go dormant, just keep foot traffic off it and it will green up later.
Not sure what you are looking at?
Grubs and disease need to be caught early. If your brown patches are spreading or the turf is lifting, give us a call — we will diagnose it and put a recovery plan in place.
