To protect your lawn from winter damage, remove all leaves and debris, apply a winterizing fertilizer in late fall to strengthen roots, and keep heavy traffic off the grass. You should also fix any drainage issues before winter arrives to prevent standing water.
In colder regions, consider light mulching for insulation, while in warmer climates like Florida, provide supplemental water during dry periods.
Winter can be hard on lawns, but a little preparation goes a long way. A little fall prep work goes a long way toward helping your grass survive the cold and bounce back in spring.
Adjust final mowing height
As winter approaches, adjust the mowing height. According to Allison Bailey, agriculture and natural resources agent at the University of Georgia Extension, the proper mowing height depends on the type of grass.
“For warm-season grasses, raise the mowing height to about two inches at the end of the season,” she says. “For cool-season grasses, we don’t recommend any changes; keep it around two to three inches, as usual.”
Bailey notes that maintaining the proper height “protects the grass crown and helps the plant store energy for winter.” Cutting too short can expose the crown to freezing temperatures and drying winds. On the other hand, grass that’s too tall tends to mat down, trapping moisture and creating a hiding spot for rodents like voles.
Keeping your grass at the right height supports strong roots as the lawn goes dormant, adds Bailey. It improves air flow through the turf, reducing the risk of disease, and promotes an even, healthy green-up when spring arrives. Just be careful not to cut too short. Lower the mower blade gradually over a couple of mowings, never removing more than one-third of the grass blade at a time.
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Clean up leaves and debris
Rake leaves, sticks, and other debris before winter arrives. All of that smothers the turf and may also cause snow mold to develop during winter. Raking or blowing away leaves allows the grass to breathe and dry out on warmer days, reducing the risk of mold developing under snow cover. Clearing debris also discourages pests, as piles of leaves or tall grass near the lawn provide cozy cover for critters.
Read more:
- The Best Way to Remove Leaves From Your Yard
- Is It Better to Rake or Mulch Leaves?
- Benefits of Fall Yard Cleanup
Aerate
If your soil feels hard or has a thick layer of thatch, aerate. Core aeration removes small plugs of soil, improving airflow and allowing water and nutrients to reach the roots more easily. It also breaks up excess thatch, which can trap moisture and encourage disease.
For cool-season lawns, September and April are the best times to aerate, giving the grass plenty of time to recover before winter arrives. Warm-season grasses should be aerated in late spring.
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Improve drainage
Take a look at how water drains off your lawn. Puddles or soggy areas can spell trouble once temperatures drop. “Standing water can freeze and expand, lifting or breaking grass crowns and roots,” explains Bailey from the University of Georgia Extension.
To improve drainage, Bailey recommends filling low spots to level the surface and ensure gutters and downspouts aren’t sending excess water onto the grass. If you have heavy clay soil like me, try aerating or spreading a thin layer of compost to improve absorption.
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Fertilize
As grass growth slows, the roots are still active and ready to absorb nutrients that will strengthen them for winter.
Warm-season grasses benefit from potassium-rich fertilizers applied in late summer or very early fall.
Cool-season grasses thrive with nitrogen-based fertilizers applied in mid-fall. Fertilizers with ratios like 20-8-8 or 24-0-12 work best.
“Adding fertilizer to the lawn in the fall helps maintain a healthy lawn, reduces the amount of weeds that can germinate, and reduces the amount of disease pressure,” says Ginny Rosenkranz, principal agent associate at the University of Maryland Extension. She notes that in Maryland, fertilization is recommended only up until November 15.
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Water appropriately
If you live in an area that gets regular snow, you can skip winter watering. Snow acts as a natural blanket, keeping moisture in the soil and watering the grass as it melts. However, in regions with dry or mild winters, your lawn may still need water.
Newly planted lawns will likely need supplemental irrigation during the winter. Watering once or twice a month is enough — only water when the temperature is 40 degrees or warmer. Check your soil’s moisture before watering. In most cases, warm-season lawns need about half an inch of water per week during winter.
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Minimize foot traffic
Try to avoid walking on your lawn when it’s frozen, frosted, or covered in snow. “Walking or driving on frozen turf can crush the brittle blades and damage the crown,” Bailey explains. This can lead to brown or dead spots once the lawn thaws.
Frequent traffic, from people, pets, or parked cars, can also compact the soil. To protect the lawn, stick to sidewalks and driveways, avoid parking on the grass, and keep heavy activity off the turf until spring.
Install snow stakes
When heavy snow falls, it’s easy to lose track of where your driveway ends and your lawn begins. That’s how grass often gets damaged by snowplows or shovels. Installing snow stakes along the edges of your driveway and sidewalks in late fall helps mark the boundaries so whoever’s clearing snow knows exactly where to stop.
Read more: How to Remove Snow Safely
Manage snow accumulation
Deep piles or packed snow can harm grass if left too long. Compressed snow keeps grass cold and damp, increasing the risk of snow mold and suffocation.
“If you must pile snow on the lawn, try to place it in a low-impact area that drains well and receives plenty of sunlight, so it melts quickly,” says Bailey from the University of Georgia Extension. If certain areas of your yard tend to collect heavy snow, use snow fencing or barriers to redirect it so it spreads out instead of building up in one spot.
Read more: Solutions for Your Snow Removal Struggles
Be careful when melting ice
When melting ice, choose deicing products wisely. “All of the deicers are made of salts, and too much salt can dehydrate the grass and make the soil difficult to grow in later,” warns Rosenkranz from the University of Maryland Extension.
Avoid sodium chloride (rock salt), which is especially harsh. They can draw moisture from grass blades and roots, causing burns, dehydration, and long-term soil damage that makes it harder for new grass to grow. Bailey suggests choosing gentler alternatives like calcium magnesium acetate, potassium chloride, or calcium chloride, which are much safer for lawns and plants when used correctly.
Apply these products only where needed, such as on driveways and walkways, and sweep up any excess to prevent runoff onto the grass. For traction, I like to use sand or kitty litter, which are harmless options once the snow is cleared.
Getting your lawn winter-ready
Preparing your lawn for winter doesn’t have to be complicated — it just takes a bit of care and good timing. From clearing leaves and adjusting your final mow to improving drainage and managing snow, each step helps protect your turf through the cold months.
If you need a hand getting your lawn ready for winter, Lawnlove can connect you with professionals for aeration, mowing, or leaf removal. With the right help, your yard will head into the cold season clean, strong, and ready for a healthy spring comeback.
Sources:
- Allison Bailey. Wilkes County ANR Agent. University of Georgia Extension. Personal Interview.
- Ginny Rosenkranz. Principal Agent Associate. University of Maryland Extension. Personal Interview.
- “Core Aeration of Lawns.” By Aaron Steil. Extension Specialist. Iowa State University Extension.
- “Preventing Winter Damage to Lawns.” University of Illinois Extension.
- “Winter Watering.” By Nicole Stoner. Extension Educator. University of Nebraska-Lincoln Extension.
- “Avoid Traffic on Frozen Turf.” By Nicole Stoner. Extension Educator. University of Nebraska-Lincoln Extension.
Main Image: Remove yard debris before winter to prevent lawn damage. Photo Credit: Olga / Adobe Stock
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