This Lawn Care Trick Could Save Your Grass During a Heatwave

CNET

07-07-2025

Keeping your lawn looking healthy in the middle of summer can feel like an uphill battle, especially when scorching temperatures are doing their best to dry out every blade of grass. But regular mowing is still important, and when done right, it can actually help your yard survive the heat. The key is knowing how to adjust your lawn care routine for the season. Mowing too short, cutting at the wrong time of day or skipping water can all contribute to brown patches and brittle turf.
Instead of letting your grass become a casualty of the summer sun, take a few simple steps to give it a better shot at staying lush and green. Raise the mower height, mow when it's cooler outside, and leave the clippings on the ground to help the soil retain moisture. These may sound like small changes, but they make a big impact over time. With the right approach, your lawn can stay vibrant even when the weather is working against it.
1. Keep it long
A short trim can cause damage to your lawn, especially during hotter months.
Chris Wedel/CNET
For some, a perfect lawn is always well-trimmed and consistently kept short. Unfortunately, while this may look nice, it can be a detriment to the overall life of your grass.
During the hottest days of summer when your yard is competing with sweltering heat, blazing sun and less rain, it's best to keep the grass about 4 inches high after a cut. That may seem long but taller grass retains more water and has longer, healthier roots.
2. Wait until the grass is dry
Mowing when there is still dew on the ground can damage your lawn.
Russell Holly/CNET
It may seem obvious during the summer when it reaches unbearable temps during the day to try and get started mowing early in the cool morning hours. But if there's still dew on the ground, you can lose time and damage your lawn. This is caused by the high likelihood that wet grass will clump up in the discharge chute (that flappy thing on the side), requiring you to stop and remove the clog. Plus, your mower tires won't get great traction either and could put tracks in your yard.
Instead, wait until later in the morning when the dew dries, or mow the lawn late in the day before the evening dew. Also, time your sprinklers to start up in the late evening or at night so there isn't extra moisture on the grass when you mow. Here are some more watering tips for your lawn.
3. Go slower
Keep your speeds low to make mowing go fast.
Alina Bradford/CNET
Short on time or just want to get the chore over faster? Then going fast makes the most sense, right? But while it's tempting to go fast while mowing, it can actually create more work for you. By not taking your time and letting the mower do its job properly, there's a good chance it will leave some areas uncut and give the lawn an uneven, sloppy look. This means you'll have to take more time to re-mow it to make the lawn look correct.
Instead, take the path of the turtle -- slow and steady. A slower, mid-speed mowing session is faster and better for your lawn than zooming around the grass and ultimately needing to re-mow it later. Also, remember that the choke needs to be lower for slower speeds to run properly.
4. Be consistent
My yard has never had such a professional look.
Chris Wedel/CNET
Mowing randomly across your lawn can take up more time and lead to an uneven cut. Follow a pattern instead, using this technique:
Start on the edge of your lawn with the discharge chute pointing toward your lawn
Mow around the perimeter of your lawn
When you get to your starting point, make a U-turn so the discharge chute is facing the strip you just cut
Keep mowing around the perimeter, making sure the discharge chute is pointed toward where you just mowed.
In the end, your lawn will end up with a nice pattern and the discharge chute won't clog.
How to Prep Your Lawn Mower for the Season How to Prep Your Lawn Mower for the Season
Click to unmute
Video Player is loading.
Play Video
Play
Skip Backward
Skip Forward
Next playlist item
Unmute
Current Time
0:00
/
Duration
2:58
Loaded :
6.65%
0:00
Stream Type LIVE
Seek to live, currently behind live
LIVE
Remaining Time
-
2:58
Share
Fullscreen
This is a modal window.
Beginning of dialog window. Escape will cancel and close the window.
Text
Color White Black Red Green Blue Yellow Magenta Cyan
Opacity Opaque Semi-Transparent Text Background
Color Black White Red Green Blue Yellow Magenta Cyan
Opacity Opaque Semi-Transparent Transparent Caption Area Background
Color Black White Red Green Blue Yellow Magenta Cyan
Opacity Transparent Semi-Transparent Opaque
Font Size 50% 75% 100% 125% 150% 175% 200% 300% 400% Text Edge Style None Raised Depressed Uniform Drop shadow Font Family Proportional Sans-Serif Monospace Sans-Serif Proportional Serif Monospace Serif Casual Script Small Caps
Reset Done
Close Modal Dialog
End of dialog window.
Close Modal Dialog
This is a modal window. This modal can be closed by pressing the Escape key or activating the close button.
Close Modal Dialog
This is a modal window. This modal can be closed by pressing the Escape key or activating the close button.
How to Prep Your Lawn Mower for the Season
5. Prep your mower for the next round
Regular maintenance on your mower is important to ensure it is reliable and does a great job each and every time you take it out. Spending a little time after you finish mowing will keep your mower in tip-top shape and lasting longer. Start by turning the mower over and rinsing the blades and discharge chute with a garden hose before putting it away. This will prevent grass from building up, drying out and being much harder to remove.
If the air filter on your push mower looks dirty, give it a good wash with some mild dish soap and rinse it with the garden hose. Set the filter aside to dry so you can put it on right before mowing next time.
One of the best time savers is keeping your lawn mower blade sharp. A dull blade will require you to go over the same patch of lawn more than once to cut any raggedy bits left behind. A sharp blade allows you to zip around your lawn just once and still get great results. Most mower repair shops will sharpen the blades for a small fee, or you can do it yourself with these tips.
FAQs to help you get the best-looking lawn
What order should I mow my lawn?
It's best to start mowing around the edges of your lawn, with the grass clippings going into your uncut grass. After cutting around the entire perimeter of your yard, turn back around and mow in the opposite direction, with the grass chute pointing toward the perimeter grass you already cut. Continue this mowing direction until complete.
Want to make watering your lawn easier? Here's CNET's guide to making your own automated lawn watering system.