Why Your Lawn Has Brown Patches and How to Fix Them

A healthy green lawn adds beauty and value to any home, but nothing is more frustrating than finding brown patches scattered across your yard. These unsightly spots are a common problem, especially during the warmer months, and understanding the root cause is essential to fixing them effectively. At Skyline Exteriors, we help homeowners uncover the reasons behind their lawn issues and provide professional solutions to bring their yards back to life.

Common Causes of Brown Patches

Brown spots can appear for a variety of reasons, and identifying the source is the first step in correcting the problem. One of the most common causes is lawn disease. Fungal infections like Brown Patch and Dollar Spot flourish in warm, humid conditions and often start as small, circular brown spots that spread quickly if untreated. Overwatering, excessive nitrogen, and poor air circulation can make your lawn more vulnerable to these diseases. Another frequent culprit is pet urine. Dog urine is rich in nitrogen, and when concentrated in one area, it can burn the grass and create dead patches surrounded by a ring of darker green growth.

Improper mowing practices can also damage your lawn. Dull mower blades tear grass instead of cutting it cleanly, leading to stress and increased risk of disease. Similarly, poor watering habits—either too much or too little—can result in dry or rotting grass. Overwatering suffocates roots and invites fungus, while under-watering causes dehydration, especially during hot, dry weather. Another issue to consider is thatch buildup. A layer of thatch thicker than ½ inch prevents water and nutrients from reaching the roots, causing dry, brown areas to form. Lastly, grubs and other pests may be to blame. These lawn-damaging insects feed on grassroots, creating irregular patches that feel spongy or can be lifted like a carpet.

Fixing the Problem

Once you determine what’s causing your lawn’s brown patches, you can take appropriate steps to remedy the issue. For fungal diseases, applying the right fungicide and adjusting your watering schedule can help stop the spread. Avoid fertilizing during an outbreak to prevent further stress. If your pets are causing the damage, train them to use one designated area in the yard and flush the spot with water afterward to dilute the urine. Regular mower maintenance is also key—keep your blades sharp for clean cuts that help the grass recover quickly.

When it comes to watering, follow a consistent schedule and water deeply but infrequently—about one inch of water per week. Early morning is the best time to water, as it allows moisture to absorb before the heat of the day. If thatch is the problem, aerate your lawn and remove the buildup to improve soil access and air circulation. If pests like grubs are present, apply a targeted insecticide or consult a lawn care professional for more serious infestations.

Preventing Brown Patches in the Future

The best way to handle brown patches is to prevent them. Mow your grass at the appropriate height (typically 2.5 to 3 inches) and avoid cutting more than one-third of the blade length at a time. Fertilize responsibly, making sure not to overdo it, and watch for signs of pooling water or compacted soil. Seasonal aeration, proper drainage, and regular lawn inspections can go a long way in keeping your grass healthy and green all year long.

Let Skyline Exteriors Help

At Skyline Exteriors, we specialize in professional lawn care services tailored to your yard’s specific needs. Whether you're dealing with brown patches, need pest control, or want to revamp your outdoor space, our expert team is here to help. We offer personalized lawn assessments and proven treatments that restore the health and beauty of your lawn.