Should You Fertilize in the Summer? The Truth About Texas Lawn Feeding

Published on May 19, 2026 at 10:34 AM
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Summer fertilizing is one of those topics that generates a lot of conflicting advice. Some people say do it, some say don't, and the lawn care aisle at the hardware store doesn't exactly make it clearer.

Here's the honest truth about fertilizing your lawn during a Central Texas summer.

The Short Answer: Mostly No

For most Central Texas homeowners with warm-season grasses like Bermuda or St. Augustine, heavy fertilization during peak summer heat is not recommended. When grass is under heat stress and potentially drought stress on top of that, pushing it with nitrogen fertilizer can do more harm than good. It forces growth the plant can't sustain, increases water demand, and can cause fertilizer burn.

The Exception: Light, Slow-Release Applications

If your lawn is healthy and actively growing, not dormant or stressed, a light application of a slow-release fertilizer in early summer can be okay. The key word is slow-release.

It feeds the lawn gently over time rather than dumping a surge of nutrients that overwhelm a stressed plant.

Beware of Nitrogen Burn

Fertilizer burn happens when too much nitrogen, especially quick-release nitrogen, is applied to stressed or dry grass. It shows up as brown, straw-like streaks following the application pattern. It's more likely in summer when grass is already heat-stressed.

If you're going to fertilize, water it in well and never apply to drought-stressed grass.

What About Iron?

Iron applications are a popular summer option in Texas because they provide a green color boost without the nitrogen surge. Iron doesn't push growth — it just helps the grass look greener.

It's a much gentler option for mid-summer color if your lawn has gone a bit dull.

Save the Big Feed for Fall

Fall is the best time to fertilize warm-season grasses in Central Texas. Temperatures are cooler, the grass is actively recovering from summer, and it can actually use the nutrients effectively.

A good fall fertilizer application sets your lawn up for a strong winter root development and a fast spring green-up.

When in Doubt, Ask The Expert

Fertilization is one area where the right answer depends heavily on your specific grass type, soil conditions, and what your lawn is currently experiencing.

Evans Lawn Care is happy to take a look at your yard and give you an honest assessment.

You know the drill. Give us a call & we'll take it off your hands. 

 

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