How can I avoid brown grass in the summer heat?

Grass in a meadow. Brown Grass

Brown Grass

Your lawn is so beautiful. The grass is lush and lush, and it feels great on your toes. But out of nowhere, the grass seems to be turning brown.


Your lawn is a picturesque haven—lush, vibrant, and a treat for your senses. But suddenly, brown grass starts creeping in, disrupting the harmony. The burning question: “How can I shield my lawn from succumbing to the dreaded brown grass syndrome?”


Fear not! Brown grass, a notorious villain in the summer drama, can be thwarted 9 out of 10 times with a straightforward remedy. Here’s the key to maintaining your lawn’s lush green allure amidst the summer heatwave.
Firstly, consider elevating your mowing game. When the mercury rises, your lawn craves hydration. Lowering the mower blades too much diminishes the turf’s water retention ability, leading to drier, less resilient grass.

The simple antidote? Raise the mowing height by an inch or two during the sizzling summer months, allowing your lawn to bask in the cool shade of longer blades.


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Now you want to know:

“What can I do to prevent my lawn from turning brown in the summer heat?”

Good news! Brown grass from the heat of the summer can be avoided 9 out of 10 times. And the solution is very simple.

Here’s how to keep your lawn from turning brown in the summer heat.

Mow the grass higher in the summer

When the summer heat hits, your lawn needs to store as much water as possible. Also, cutting the turf too deeply reduces its ability to retain moisture. And the grass itself will contain less moisture. There are other steps you can take to help the lawn itself hold more water. However, the best way to retain more water in your lawn is simply to increase the mowing height.

So when the summer heat hits, raise the mowing height an inch or two.

Buy while your lawn is 2-2.5 inches and healthy in the spring and fall. However, during the hot summer months, the lawn should be around 3-4 inches for drought.

Proper watering is Crucial

Another great way to keep your lawn from turning brown in the summer is to water it regularly.

Watering deeper and less frequently will create deeper drought-tolerant roots. The deeper the roots can reach, the more water may be available. And your weeds will drink plenty of water if you follow the steps below.


Brow Grass: Splash the grass

Spraying involves watering briefly during the day to cool the lawn. Turn on the irrigation system for 5 minutes during the hottest part of the day. This idea differs from typical watering recommendations, but the point is not to water the lawn but to cool it. Equally vital is the art of watering. Opt for less frequent watering sessions to foster robust, drought-tolerant roots. Let your irrigation system sprinkle a brief respite during the day’s peak heat, dousing the lawn in a refreshing splash— a technique that diverges from conventional wisdom but aims to cool, not saturate.

However, it is still conclusive whether the injections are effective.


Create a lawn that stays hydrated all year 

Regular lawn care increases the water retention capacity of your lawn. 

Here are the tasks you should perform to keep your lawn moist:

  • Annual or semi-annual aeration and overseeding,
  • Regular use of organic granular fertilizer,
  • Top dressing the lawn every year.

Each task keeps your lawn moist and helps your lawn use the available water and nutrients more efficiently. Keeping your lawn moist will prepare you for summer droughts.


Creating a moisture-rich haven involves a strategic blend of annual aeration, overseeding, organic fertilizer indulgence, and a yearly top dressing ritual. These tasks enhance your lawn’s water retention prowess, gearing it up to combat the summer droughts with resilience.


But beware, fertilize with caution in the summer heat to avoid a scorched aftermath. Instead, embrace humate, the organic marvel that acts as your lawn’s natural mulch, nurturing growth while preserving moisture. Topsoil, enriched with beneficial bacteria and fungi, amplifies drought resistance, making it an essential ally in your lawn care arsenal.


Here’s a golden rule: refrain from fertilizing in the summer, as certain fertilizers can scorch your lawn. The shade of trees can also be your lawn’s ally, shielding it from the harsh gaze of direct sunlight.

And now, the pièce de résistance—do not succumb to the temptation of shearing your lawn too short. Brown grass often emerges as the aftermath of this well-intentioned but misguided act.


Do not fertilize in the summer, as certain fertilizers can burn your lawn in the summer heat and give you brown grass. 


Humate helps keep water in the lawn

Humic, or humic acid, is the organic matter that makes up the soil and acts like mulch for your lawn. This allows the grass to grow while retaining moisture to avoid brown grass. 

Additional topsoil can host beneficial bacteria and fungi and increase the drought tolerance of the lawn.

Proper top dressing with compost contributes to a regular supply of humic substances to the lawn. You can compost your lawn clippings and garbage to make a top-dressing mix that adds plenty of humus to your grass. Synthetic fertilizers often kill weeds, can reduce nutrient uptake, and make weeds less drought-tolerant. is different from

Besides lack of water, the most common reason for brown grass in the summer is cutting the lawn too short.

For more information on lawn care, read our lawn care guide. Shade trees can reduce exposure to direct sunlight for your lawn. Contact us for your lawn care needs to avoid brown grass in Oakville.


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