Can You Cut Wet Grass? (2024)

September 22, 2023 Turf Tips

Whether it’s been a spell of wet weather or an unexpected summer shower, most of us have looked out at a lawn in need of mowing only to find the grass is still damp. So when is it okay to get the mower out, and how wet is too wet when it comes to cutting your grass? This is a question we get asked a lot here at George Davies Turf.

A perfectly presented lawn is the goal for many homeowners, but wet grass can make achieving that very tricky. Mowing while the lawn is still wet risks damaging the blades of grass, leading to an unhealthy, patchy lawn.

To keep your grass looking its best, it’s important to know when to wait for it to dry before getting the lawn mower out. Here’s our advice on mowing wet grass, how long to wait after rain, and how to tell when the lawn is dry enough.

How Wet is Too Wet to Mow?

If you can still see pools or puddles of water on the lawn, it’s definitely too wet to mow. Likewise, if you walk on the grass and water comes up around your feet, the moisture content is too high.

A good gauge is the ‘shoe test’ – press down on the grass with your boot or shoe, and if water pools up around the print, the lawn needs longer to dry out. If you mow when it’s this wet, you’ll end up with a muddy mess and grass clippings will stick together to form a wet mat on the lawn.

General guidance is to wait until your lawn is 95% dry before mowing. If the grass blades still feel damp or flexible, leave it a bit longer. The blades should feel dry and snap easily when bent.

Can You Cut Wet Grass? (1)

How Long to Wait After Rain Before Mowing

When rain is forecast, try to cut your grass the day before if possible. This gives the lawn chance to dry out before the downpour arrives. If you’ve missed that window, the following drying times are recommended after different levels of rainfall:

– Light rain shower – Wait at least 2 hours before mowing

– Steady moderate rainfall – Wait 24 hours if possible

– Heavy downpour – Wait 48-72 hours for the lawn to fully dry

– Thunderstorms – Wait 3 to 4 days. Thunderstorms dump a huge volume of water.

These are just rough timeframes, and drying times vary based on weather conditions like sunshine, temperature, humidity and wind. Keep assessing the grass. When it’s dry to the touch, has a consistent green colour and the blades feel brittle, it’s good to mow.

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Why Cutting Wet Grass Damages Your Lawn

Mowing wet grass can wreak havoc on your lawn for a few reasons:

– It rips rather than cuts. When wet, grass blades will tear and shred under the mower blades rather than cutting cleanly. This leads to damaged, frayed tips which turn brown.

– It compacts down the soil beneath. The weight of the mower on soggy ground compresses the soil, hampering root development and reducing air circulation.

– It spreads lawn diseases. Moisture on the grass blades transfers diseases rust fungus as you mow.

– It creates messy clumps. Wet clippings will clump together on the lawn surface or under the mower deck.

– It clogs up machinery, which can damage the equipment over time.

So, for the healthiest lawn and fully functioning mower, wait until the grass is no longer waterlogged before cutting it. Be patient after heavy rainfall and stick to mowing in dry weather conditions when possible.

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Keeping On Top of Your Lawn Care

Making note of when you last mowed and how the weather has been since is useful when deciding if the lawn is ready for cutting. Maintain your lawn mower well with regular servicing and blade sharpening too so it’s always up to the task of tackling your grass.

If you have any other lawn care queries, get in touch with us here at George Davies Turf. We’re turfing experts with over 20 years of experience in helping to create amazing looking lawns! If you are looking for a new lawn, be sure to get your quote here.

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Need More Advice? Contact us Today…

Ifyou’relooking for advice on your turf, or to make an enquiry about a new lawn,contact our friendly teamfor professional advice.

Can You Cut Wet Grass? (2024)

FAQs

Can You Cut Wet Grass? ›

It's best to wait for wet grass to dry before mowing. Wet grass clippings can clog your mower, causing it to choke and spit out clumps of wet grass that could smother and kill your lawn if left unraked. It's best to wait for wet grass to dry before mowing.

What happens if you cut wet grass? ›

Mowing wet lawns increases the risk of rut damage, since the soil is softer and more slippery for mowers, and the grass roots can more easily be torn out by the mower tires. That said, lighter weight Wright mowers with their large wheels enable you to mow over wetter ground with less risk of rut damage.

How soon after rain can I mow? ›

How soon can you cut grass after rain? Wait until the grass is dry, which will usually take at least a few hours. Walk through the lawn before mowing, and if your shoes or feet come away wet, don't mow yet. If they're mostly dry, you should be good to go.

Can grass be too wet to cut? ›

If the grass is only slightly damp and the ground is not excessively wet, cutting the grass after rain is generally acceptable. However, if the grass is still saturated and the ground is waterlogged, it is advisable to wait until it dries out a bit more to avoid clumping and potential damage to the lawn.

Can you cut grass with morning dew? ›

Unlike rain, morning dew is moisture mostly on the leaf and doesn't cause excessive amounts of water to be present within the soil. This can mean that mowing while there is still dew present on the leaf, isn't as much of a concern as mowing after rain.

How do I know if my grass is too wet to mow? ›

If it looks muddy or feels soft, it's probably better to wait on cutting the grass.

Is it bad to cut grass after watering? ›

Both the University of Rhode Island Landscape Horticulture Program and Ohio State Extension Master Gardener agree that it is better to mow grass when it is dry, but the only reason seems to be that the cut grass blades tend to stick together when they are wet and leave clumps of unsightly grass piles on your lawn.

When not to cut grass? ›

Never mow wet or frosty grass

This can damage your turf and compact the soil. Wait until later in the day when the lawn has dried out or defrosted, or postpone mowing to another day.

How to dry out a lawn quickly? ›

Aerate Your Lawn

The simplest strategy you can try if there are parts of your yard that stay wet too long is to aerate your lawn. Aerating reduces compaction in the soil so that water can percolate through it faster.

Is it better to leave grass clippings or bag them? ›

The answer is that mulching the clippings is better for your lawn. That's because when you mulch the clippings, they will eventually break down and return nutrients to your soil. One of the most common misconceptions about mulching grass clippings is that it causes a thatch build-up problem.

What is the best time to cut the grass? ›

However, most professional gardeners would agree that between 8 AM and 10 AM is the best time of day to cut your grass. The reason for that is that lawns need time to heal before evening. Grass needs the benefit of the day to dry and heal before dusk settles.

How long does it take for wet grass to dry out? ›

Grass in a well kept lawn can dry in as little as an hour, or even less, if the sun comes out and there's a nice breeze and the humidity is low. Such conditions can and do occasionally prevail immediately after a thunderstorm.

Is 8pm too late to mow the lawn? ›

Generally, anytime after 6 p.m. is too late to be cutting your grass.

Is it okay to mow damp grass? ›

It's best to wait for wet grass to dry before mowing. Wet grass clippings can clog your mower, causing it to choke and spit out clumps of wet grass that could smother and kill your lawn if left unraked. It's best to wait for wet grass to dry before mowing.

How to tell if grass is dry enough to cut? ›

A good gauge is the 'shoe test' – press down on the grass with your boot or shoe, and if water pools up around the print, the lawn needs longer to dry out. If you mow when it's this wet, you'll end up with a muddy mess and grass clippings will stick together to form a wet mat on the lawn.

Does wet grass dull mower blades? ›

Cutting wet grass can dull the blade more quickly. Clean blades thoroughly before and after mowing a lawn when wet to keep the cut as sharp as possible. Stop and turn off the mower to check your blades as you go along, to clear any clogs that may form on the underside or at the side discharge.

Is rain good for freshly cut grass? ›

Mowing before rain means that the grass can take in more water and heal better. Then the wounds can close sooner, and the grass will spread and grow. Mowing before rain can help your grass be much healthier. If you mow after rain, there are more dangers that risk your safety.

Is it okay to mow wet grass on Reddit? ›

Yes it's fine. The reason ppl don't like to do it is because your mower bag will fill quicker and be heavier, get clogged easier, it's generally a harder job but it's fine if you do it. Just a little harder.

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