The task of mowing your lawn might seem like a simple chore, but the moisture can affect your mower and the overall health of your lawn. A question that often comes up is whether it’s okay to mow when the grass is wet — how would you respond? You've probably done it once or twice when you're in a rush, but was it an effective or safe decision? While it may be tempting, we tapped the experts and learned why they advise against it.
The Problems with Mowing Wet Grass
Mowing a wet lawn can lead to several issues — and not just an unsightly appearance caused by lots of wet clumps. Mowing through wet grass can also cause potential damage to your mower. “[We] generally advise against mowing wet grass as conditions can cause the clumping of grass clippings and excessive buildup on the mower deck underside," shared Eric Halfman, go-to-market manager at John Deere. "It can cause unnecessary strain on the machine, a poor-quality cut, and potentially, a clogged mower."
Wet grass tends to stick together, forming clumps that are difficult to mow evenly. Not only will they risk damaging your standard mower, but the clumps can also suffocate your lawn by blocking sunlight and airflow, leading to brown spots and fungal diseases. Additionally, mowing wet grass can tear the blades of grass rather than cut a cleaner finish, leading to an uneven cut and stressing your lawn.
Risks to Your Lawn Mower
Your lawn isn’t the only thing at risk when mowing damp grass—your mower can also suffer. Wet grass clippings are heavier and more likely to stick to the underside of your mower, clogging the deck and dulling the lawn mower blades faster. The buildup of grass blades increases the risk of mechanical issues and can cause your mower to overheat due to the extra strain.
Safety in lawn mower operation is another concern after heavy rainfall or in morning dew. Halfman emphasizes, “Mowing on wet slopes would not be recommended as traction could be compromised." Loss of traction can increase the risk of slips, cause accidents, or make mowing uphill or downhill dangerous, putting both you and your equipment in danger.
FAQ
When is the best time of day to mow the lawn?
The best time to mow your lawn is mid-morning, around 10am, or in the late afternoon, between 4-6pm. During these times, the grass is usually dry, and temperatures are cooler, which minimizes stress on your lawn and reduces the potential risk of lawn diseases. Avoid mowing early in the morning when dew is present or late in the evening when humidity rises, as wet grass can be harder to cut and may lead to uneven results. You should also steer clear of mowing after rain to avoid damage to your lawn caused by soggy ground.
What are the risks of mowing in wet weather?
Mowing in wet weather can lead to several issues, including clumping grass, poor cuts, and damage to your lawn and mower. Wet soil increases the risks of rut damage, which can compact the soil and harm your grass roots. Additionally, wet conditions can make it harder for mowers—whether it's an electric mower or commercial mower—to maintain traction, increasing the likelihood of accidents. It’s always best to check the weather forecast before you mow and wait for a dry day whenever possible.
How can I improve traction when mowing slopes?
To improve traction when mowing slopes, always mow across the slope rather than up and down. This technique reduces the potential risk of slipping and helps avoid mower tip-overs. Using a mower with sharp blades and good traction, such as a reel mower or a well-maintained commercial mower, can make a significant difference. Also, avoid mowing during or after a rain shower, as wet soil and grass can reduce grip, making the task more dangerous.
Why is it important to avoid mowing wet grass?
Mowing wet grass can lead to several issues, including clogged mower decks, uneven cuts, and increased susceptibility to lawn diseases. Wet grass blades are more prone to tearing rather than being cleanly cut, which can open up your lawn to pathogens. Plus, wet conditions also make it harder for your mower to operate efficiently, whether it’s a corded mower, electric mower, or reel mower. Always make sure the grass is dry before mowing to promote a healthy, well-manicured lawn.
How long should I wait after wet weather?
After wet weather, wait until the lawn has had ample time to dry before mowing. Soggy ground can increase the risk of rut damage and can make mowing challenging, especially if using a commercial mower or any heavy equipment. Using sharp blades is crucial, as dull blades can further damage wet grass. It’s also helpful to avoid low-lying areas that may still be waterlogged.
