{"id":38233,"date":"2025-04-21T19:21:41","date_gmt":"2025-04-21T19:21:41","guid":{"rendered":"https:\/\/lawnlove.com\/blog\/?p=38233"},"modified":"2026-03-11T21:46:45","modified_gmt":"2026-03-11T21:46:45","slug":"how-to-prevent-grass-from-clumping-when-mowing","status":"publish","type":"post","link":"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/","title":{"rendered":"10 Ways to Prevent Grass From Clumping When Mowing"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Mowing should leave you with a nice, clean lawn \u2014 not a patchy, clumpy mess. To prevent grass from clumping when mowing, stick to the one-third rule, mow dry grass, keep those mower blades sharp, and adjust your mowing frequency, among other things.<\/p>    <p class=\"wp-block-paragraph\">Together, these steps help your mower work more efficiently and allow clippings to break down naturally into the lawn rather than piling up in thick clumps. Not to mention, you\u2019ll have a cleaner, healthier lawn, free fertilizer, and an easier time mowing your lawn.<\/p>    <p class=\"wp-block-paragraph\">My expert-backed guide will teach you exactly how to get a smooth, clump-free mow every time.<\/p>   <div class=\"wp-block-ub-table-of-contents-block ub_table-of-contents\" id=\"ub_table-of-contents-661c16c5-8554-40c4-90cd-fb9c39cedf32\" data-linktodivider=\"false\" data-showtext=\"show\" data-hidetext=\"hide\" data-scrolltype=\"auto\" data-enablesmoothscroll=\"false\" data-initiallyhideonmobile=\"false\" data-initiallyshow=\"true\"><div class=\"ub_table-of-contents-header-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-header\" style=\"text-align: left; \"> \t\t\t\t<div class=\"ub_table-of-contents-title\" style=\"\">In this article, we&#8217;ll cover:<\/div> \t\t\t\t \t\t\t<\/div> \t\t<\/div><div class=\"ub_table-of-contents-extra-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-container ub_table-of-contents-1-column\"> \t\t\t\t<ul style=\"\"><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#0-1-follow-the-one-third-rule\" style=\"\">1. Follow the one-third rule<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#1-2-mow-dry-grass\" style=\"\">2. Mow dry grass<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#2-3-keep-your-mower-blades-sharp\" style=\"\">3. Keep your mower blades sharp<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#3-4-adjust-your-mowing-frequency\" style=\"\">4. Adjust your mowing frequency<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#4-5-keep-the-right-mower-settings\" style=\"\">5. Keep the right mower settings<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#5-6-change-your-mowing-pattern\" style=\"\">6. Change your mowing pattern<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#6-7-mulch-rather-than-bag\" style=\"\">7. Mulch rather than bag<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#7-8-clean-your-mower-deck-\" style=\"\">8. Clean your mower deck\u00a0<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#8-9-address-thatch-issues\" style=\"\">9. Address thatch issues<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#9-10-upgrade-your-mower\" style=\"\">10. Upgrade your mower<\/a><\/li><li style=\"\"><a href=\"https:\/\/lawnlove.com\/blog\/how-to-prevent-grass-from-clumping-when-mowing\/#10-faq-about-mowing\" style=\"\">FAQ about mowing<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>   <h2 class=\"wp-block-heading\" id=\"0-1-follow-the-one-third-rule\"><span id=\"1-follow-the-one-third-rule\">1. Follow the one-third rule<\/span><\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration.png\" alt=\"illustration explaining the one-third rule for mowing grass\" class=\"wp-image-5960\" srcset=\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration.png 800w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration-300x169.png 300w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration-768x432.png 768w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration-610x343.png 610w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2021\/10\/rsz_1lawnlove-one-third-rule-illustration-390x219.png 390w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Infographic by Juan Rodriguez <\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Ever cut your hair too short and regretted it? Well, that\u2019s how your grass feels when you skip the <a href=\"https:\/\/lawnlove.com\/blog\/one-third-rule-of-mowing\/\">one-third rule<\/a> of mowing, which means never cutting more than one-third of your grass at once.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">To avoid clumps, mow frequently enough that you\u2019re only giving your lawn a light trim. This keeps clippings small enough to break down easily, returning nutrients to the soil without smothering the grass underneath.<\/p>    <p class=\"wp-block-paragraph\">\u201cIf you neglect your lawn for a few weeks during its active growth period and it gets too high, you will impair the root growth if you cut more than one-third of the blade to reach the recommended height. Growth will slow as the grass puts its resources into the leaf tips to help them recover,\u201d say turfgrass experts from the University of California\u2019s Agriculture &amp; Natural Resources department.<\/p>    <p class=\"wp-block-paragraph\"><strong>Signs you need to mow: <\/strong>Your grass blades start bending over, or you notice uneven patches where some areas are taller than others. If you&#8217;re unsure when to cut and how much to take off, the chart below, organized from highest to lowest mowing height, will help you follow the one-third rule.<\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Grass type<\/strong><\/td><td><strong>Mow at this height (inches)<\/strong><\/td><td><strong>Cut to this height (inches)<\/strong><\/td><\/tr><tr><td colspan=\"3\"><strong>COOL-SEASON GRASSES<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/tall-fescue-guide\/\">Tall fescue<\/a><\/td><td>3 to 6<\/td><td>2 to 4<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/kentucky-bluegrass-guide\/\">Kentucky bluegrass<\/a><\/td><td>3 to 4.5<\/td><td>2 to 3<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/fine-fescue-guide\/\">Fine fescue<\/a><\/td><td>2.25 to 4.5<\/td><td>1.5 to 3<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/perennial-ryegrass-guide\/\">Perennial ryegrass<\/a><\/td><td>2.25 to 4.5<\/td><td>1.5 to 3<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/how-to-care-for-bentgrass-lawn\/\">Bentgrass<\/a><\/td><td>.38 to 1.5<\/td><td>0.25 to 1<\/td><\/tr><tr><td colspan=\"3\"><strong>WARM-SEASON GRASSES<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/bahiagrass-guide\/\">Bahiagrass<\/a><\/td><td>4.5 to 6<\/td><td>3 to 4<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/st-augustinegrass-guide\/\">St. Augustine<\/a><\/td><td>3.75 to 6<\/td><td>2.5 to 4<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/buffalograss-guide\/\">Buffalograss<\/a><\/td><td>3 to 6<\/td><td>2 to 4<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/centipedegrass-guide\/\">Centipedegrass<\/a><\/td><td>2.25 to 3<\/td><td>1.5 to 2<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/zoysiagrass-guide\/\">Zoysiagrass<\/a><\/td><td>1.5 to 3.75<\/td><td>1 to 2.5<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/carpetgrass-guide\/\">Carpetgrass<\/a><\/td><td>1.5 to 3<\/td><td>1 to 2<\/td><\/tr><tr><td><a href=\"https:\/\/lawnlove.com\/blog\/zoysiagrass-guide\/\">Zoysiagrass<\/a><\/td><td>1 to 2<\/td><td>1.5 to 3<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\">Read more in our mowing guides:<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/when-not-to-mow-your-lawn\/\">When Not to Mow Your Lawn<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/how-to-mow-your-overgrown-lawn\/\">How to Mow Your Overgrown Lawn<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/landscaping-grass-clippings-composting\/\">How to Compost Your Grass Clippings<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"1-2-mow-dry-grass\"><span id=\"2-mow-dry-grass\">2. Mow dry grass<\/span><\/h2>    <p class=\"wp-block-paragraph\">Mowing <a href=\"https:\/\/lawnlove.com\/blog\/why-not-to-mow-wet-grass\/\">wet grass<\/a> can be messy and frustrating because it forms clumps and clogs your mower deck, making your job harder and your lawn look bad.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">Aim to <a href=\"https:\/\/lawnlove.com\/blog\/the-best-time-to-cut-grass\/\">mow in the late morning or early evening<\/a> when the grass is dry but the sun isn\u2019t too intense. Dry grass stands upright for a crisp, even trim, the clippings scatter evenly and break down faster, and mowing feels like a breeze. Additionally, mowing dry grass will help prevent <a href=\"https:\/\/lawnlove.com\/blog\/how-to-identify-and-treat-grass-fungus\/\">fungal lawn diseases<\/a> and won&#8217;t <a href=\"https:\/\/lawnlove.com\/blog\/why-not-to-mow-wet-grass\/#:~:text=Suffocated%20grassroots%C2%A0\">suffocate your grassroots<\/a>.<\/p>    <p class=\"wp-block-paragraph\"><strong>Signs it\u2019s too wet to mow:<\/strong> The grass blades stick together, the lawn feels soggy underfoot, and the mower leaves tracks in your yard.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>When to mow after it rains:<\/strong> Give your lawn a few hours to dry out before mowing. Then, do a quick check by walking across it. If your shoes or feet come away wet, wait a little longer. If they\u2019re mostly dry, you can start mowing.<\/p>    <p class=\"wp-block-paragraph\"><strong>If you need to mow wet grass:<\/strong> Make sure your blades are sharp and raise the cutting height to avoid stressing your lawn.<\/p>    <p class=\"wp-block-paragraph\">Read more: <a href=\"https:\/\/lawnlove.com\/blog\/lawn-mowing-cost\/\">How Much Does Lawn Mowing Cost?<\/a><\/p>    <h2 class=\"wp-block-heading\" id=\"2-3-keep-your-mower-blades-sharp\"><span id=\"3-keep-your-mower-blades-sharp\">3. Keep your mower blades sharp<\/span><\/h2>    <p class=\"wp-block-paragraph\">Dull mower blades don\u2019t cut. Instead, they rip your grass, leaving ragged edges that dry out and attract lawn diseases. Worse, torn grass blades tend to clump together, creating those dreaded grass clumps all over your yard.<\/p>    <p class=\"wp-block-paragraph\">Sharpen your blades once or twice a year \u2014 or more often if you mow frequently. For example, if you have a \u00bc-acre yard that takes about 30 minutes to mow, you\u2019ll need to sharpen your blades once per year. However, a 1-acre yard that takes 2 hours to mow will need 3 to 4 blade-sharpening sessions per year.<\/p>    <p class=\"wp-block-paragraph\"><strong>My Tip: <\/strong>I always check my grass after mowing. If the tips look frayed or brown, it\u2019s time to sharpen my blades.<\/p>    <p class=\"wp-block-paragraph\"><strong>How long it takes: <\/strong>About 20 to 30 minutes if you do it yourself. If you\u2019re having it done professionally, it will take a quick trip to a shop.<\/p>    <p class=\"wp-block-paragraph\">Read more in our maintenance guides:&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/how-often-sharpen-mower-blades\/\">How Often Should You Sharpen Lawn Mower Blades?<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/how-to-sharpen-lawn-mower-blades\/\">How to Sharpen Lawn Mower Blades<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-lawn-mower-maintenance-practices\/\">Best Lawn Mower Maintenance Practices<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"3-4-adjust-your-mowing-frequency\"><span id=\"4-adjust-your-mowing-frequency\">4. Adjust your mowing frequency<\/span><\/h2>    <p class=\"wp-block-paragraph\">Grass grows quickly, especially in spring and early summer. Mow once or twice a week during the peak growing seasons, then adjust when growth slows down.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">If you miss a mow and the grass gets too tall, don\u2019t stress \u2014 just raise your mower height for the first pass, then lower it and mow again a few days later.<\/p>    <p class=\"wp-block-paragraph\"><strong>How weather affects mowing frequency:<\/strong> In warm, rainy weather, you might need to mow every 4 to 5 days, but when it\u2019s dry, growth slows down, so you can mow less often. If you\u2019re having issues keeping up with your mowing, Lawn Love can match you with a <a href=\"https:\/\/lawnlove.com\/near-me\" target=\"_blank\" rel=\"noreferrer noopener\">local lawn care pro<\/a>.<\/p>    <p class=\"wp-block-paragraph\"><strong>How different grass types impact mowing schedules:<\/strong> Cool-season grasses like Kentucky bluegrass and tall fescue grow the most in spring and fall, while warm-season grasses like Bermudagrass and Zoysiagrass peak in summer.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">Read more in our mowing guides:<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/the-best-time-to-cut-grass\/\">When is the Best Time to Mow Your Lawn?<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/mow-lawn-spring\/\">When Should You Mow Your Lawn in Spring?<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/guide-to-grass-types\/\">An Ultimate Guide to Grass Types<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"4-5-keep-the-right-mower-settings\"><span id=\"5-keep-the-right-mower-settings\">5. Keep the right mower settings<\/span><\/h2>    <p class=\"wp-block-paragraph\">Your mower settings can make or break a mow. Cut too low, and you\u2019ll scalp your lawn, leaving behind clumps and stressed grass. Cut too high, and you won\u2019t trim enough to keep a tidy yard. For most grass types, the ideal <a href=\"https:\/\/lawnlove.com\/blog\/how-to-mow-lawn\/#:~:text=Keep%20the%20proper%20mowing%20height\">cutting height<\/a> is from 2.5 to 3.5 inches.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">Also, check your mower\u2019s speed. If you\u2019re rushing through the job like a NASCAR driver, the blades won\u2019t have enough time to cut cleanly, especially if your grass is tall or damp. This can cause grass clumps and an uneven cut.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>How long it takes:<\/strong> Adjusting your mower&#8217;s height and speed takes only a few seconds to a couple of minutes, depending on your mower, but it makes a big difference in how your lawn looks.<\/p>    <p class=\"wp-block-paragraph\">Read more in our guide: <a href=\"https:\/\/lawnlove.com\/blog\/how-to-mow-lawn\">How to Mow a Lawn the Right Way<\/a><\/p>    <h2 class=\"wp-block-heading\" id=\"5-6-change-your-mowing-pattern\"><span id=\"6-change-your-mowing-pattern\">6. Change your mowing pattern<\/span><\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2024\/05\/mowing-pattern-1.jpeg\" alt=\"infographic showing changing mowing pattern for a healthier lawn\" class=\"wp-image-23007\"\/><figcaption class=\"wp-element-caption\">Infographic by Juan Rodgriguez<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Mowing in the same direction every time might seem harmless, but it actually causes issues. The grass starts bending that way, and your soil becomes compacted, leaving behind unsightly wheel marks and annoying clumps.<\/p>    <p class=\"wp-block-paragraph\">Alternate your <a href=\"https:\/\/lawnlove.com\/blog\/different-lawn-mowing-patterns\/\">mowing pattern<\/a> each time: horizontal one week, vertical the next, then diagonally. This not only keeps clumps at bay but also helps your grass grow upright and strong. As a bonus, your lawn will look like a pro-level baseball field.<\/p>    <p class=\"wp-block-paragraph\"><strong>How often to switch patterns:<\/strong> Every mow if possible, but at least once every couple of weeks to keep your lawn growing evenly.<\/p>    <p class=\"wp-block-paragraph\">Read more in our guides:&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/why-change-mowing-direction\/\">Why Should You Change Your Mowing Direction?<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/what-causes-compacted-soil\/\">What Causes Compacted Soil?<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"6-7-mulch-rather-than-bag\"><span id=\"7-mulch-rather-than-bag\">7. Mulch rather than bag<\/span><\/h2>    <p class=\"wp-block-paragraph\">Bagged clippings might seem like a quick fix for clumping, but you\u2019re actually tossing away free fertilizer. Use a <a href=\"https:\/\/lawnlove.com\/blog\/what-is-a-mulching-lawn-mower\/#:~:text=FAQ-,What%20is%20a%20mulching%20lawn%20mower%3F,-A%20mulching%20mower\">mulching mower<\/a> to recycle those clippings back into your lawn and give your soil a nutrient boost.<\/p>    <p class=\"wp-block-paragraph\">According to Alec Kowalewski, associate professor at Oregon State University, mulching your clippings means fewer fertilizer bags and healthier options for your lawn. \u201cOur research has shown that we can cut the fertilizer application rate almost in half when we return clippings with a mulching-type rotary mower,\u201d he notes in an OSU article.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>How a mulching mower works:<\/strong> These mowers create a stream of air that directs the grass up into the mower blades. Then, the clippings hit the blade multiple times before returning to the lawn. Mulching blades feature curved edges that create additional cutting action and typically have more surface area dedicated to cutting.<\/p>    <p class=\"wp-block-paragraph\"><strong>How often to mulch: <\/strong>You can mulch every time you mow, as long as the grass isn\u2019t too tall or wet.<\/p>    <p class=\"wp-block-paragraph\">Read more in our mulching guides:<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/bagging-vs-mulching-grass-clippings\/\">Bagging vs. Mulching Grass Clippings<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/ways-to-use-grass-clippings-as-mulch\/\">Ways to Use Grass Clippings as Mulch<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/what-is-a-mulching-lawn-mower\/\">What is a Mulching Mower and How Does It Work?<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-mulching-lawn-mowers\/\">8 Best Mulching Lawn Mowers<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"7-8-clean-your-mower-deck-\"><span id=\"8-clean-your-mower-deck\">8. Clean your mower deck&nbsp;<\/span><\/h2>    <p class=\"wp-block-paragraph\">A clogged mower deck is a clump-making machine. When grass builds up on the underside, it blocks airflow, causing clippings to drop in thick piles instead of dispersing evenly.<\/p>    <p class=\"wp-block-paragraph\">After each mow, <a href=\"https:\/\/lawnlove.com\/blog\/lawn-mowing-tips-and-tricks\/#:~:text=Clean%20the%20mower%20deck\">clean your mower deck<\/a>. First, give your deck some time to cool down, then use a putty knife or brush to scrape off any grass buildup while it\u2019s still easy to get rid of. For extra cleaning power, spray the deck with a garden hose, or if your mower has a washout port, use that instead.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">Keeping your deck clean means better mower performance and fewer clumps.<\/p>    <p class=\"wp-block-paragraph\"><strong>How to prevent buildup:<\/strong> Apply a lubricant or a special deck spray after cleaning to reduce grass from sticking to the surface during future mows.<\/p>    <p class=\"wp-block-paragraph\"><strong>My tip: <\/strong>Cleaning your mower deck is the perfect time to inspect it for signs of wear. Small cracks or rust spots can impact the deck\u2019s performance, so repairing them can prevent issues later.<\/p>    <h2 class=\"wp-block-heading\" id=\"8-9-address-thatch-issues\"><span id=\"9-address-thatch-issues\">9. Address thatch issues<\/span><\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration.jpg\" alt=\"Illustration comparing healthy grass and unhealthy grass, showing thick thatch layer above soil on unhealthy side and dense roots on healthy side.\" class=\"wp-image-45317\" srcset=\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration.jpg 800w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration-300x150.jpg 300w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration-768x384.jpg 768w, https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration-610x305.jpg 610w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Infographic by Juan Rodriguez<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">If your lawn feels spongy or water sits on the surface after rain, you might have a <a href=\"https:\/\/lawnlove.com\/blog\/what-is-thatch\/\">thatch<\/a> problem, which is a layer of organic matter that builds up between your soil and lawn. Anything thicker than \u00bd inch prevents clippings from breaking down properly, causing annoying clumps. <a href=\"https:\/\/lawnlove.com\/blog\/benefits-dethatching-lawn\/\">Dethatching<\/a> can break up that layer, improve airflow, and let clippings decompose completely.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>How to check thatch thickness: <\/strong>Dig up a small section of grass and measure the layer between your soil and grass. If it\u2019s over \u00bd inch thick, it&#8217;s time to take action.<\/p>    <p class=\"wp-block-paragraph\"><strong>How long it takes:<\/strong> A few hours, depending on the size of your lawn.<\/p>    <p class=\"wp-block-paragraph\"><strong>Best time to dethatch: <\/strong>When your grass is actively growing and can recover quickly. Cool-season grasses like fescues and Kentucky bluegrass grow best in early spring and fall. Warm-season grasses like Bermudagrass and Zoysiagrass thrive in late spring through summer.<\/p>    <p class=\"wp-block-paragraph\"><strong>How often to dethatch:<\/strong> Typically, you\u2019ll need to dethatch every 2 to 3 years, but it depends on your grass type and how you care for it. If you overfertilize or have compacted soil, thatch will build up faster. The same goes if you have fescue, Kentucky bluegrass, St. Augustinegrass, or Zoysiagrass, as these are more prone to thatch buildup.<\/p>    <p class=\"wp-block-paragraph\">Read more in our dethatching guides:<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/when-to-dethatch-lawn\/\">When to Dethatch Your Lawn<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/how-to-dethatch-lawn\/\">How to Dethatch Your Lawn<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/difference-between-dethatching-and-aeration\/\">Difference Between Dethatching and Aeration<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/lawn-dethatching-cost\/\">How Much Does Lawn Dethatching Cost?<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"9-10-upgrade-your-mower\"><span id=\"10-upgrade-your-mower\">10. Upgrade your mower<\/span><\/h2>    <p class=\"wp-block-paragraph\">If you\u2019ve tried everything and are still getting clumped grass, your mower could be the problem. Older mowers with weak engines usually can\u2019t cut properly, leaving behind clumps no matter what you do.<\/p>    <p class=\"wp-block-paragraph\">Consider upgrading to a mower with a more powerful engine, a high-lift blade that improves airflow under the deck, and a dedicated mulching feature.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">If you have a large lawn, a riding mower with a strong deck can make a big difference. Or, if you want to go high-tech, a robotic mower can keep your small lawn trimmed constantly, preventing clumps from forming in the first place.<\/p>    <p class=\"wp-block-paragraph\">It\u2019s important to <a href=\"https:\/\/lawnlove.com\/blog\/lawn-mowing-tips-and-tricks\/#:~:text=time%20and%20again.-,1.%20Choose%20the%20right%20lawn%20mower,-A%20perfect%20lawn\">choose the right mower<\/a> for your lawn and you. Here are some things to consider:<\/p>    <p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.lawnlove.com\/blog\/lawn-care-2\/electric-vs-gas-lawn-mowers\/\"><strong>Battery vs. gas-powered mowers<\/strong><\/a><strong>: <\/strong>Battery-powered mowers are a quieter, more eco-friendly option, while gas-powered mowers pack more power for tougher conditions. Both have their perks, depending on your lawn size and what it needs.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Choose innovative features: <\/strong>Some advanced mowers have AI systems that detect grass height and adjust the cutting pattern to reduce clumping.<\/p>    <p class=\"wp-block-paragraph\"><strong>Consider obstacles: <\/strong>If your lawn has trees, <a href=\"https:\/\/lawnlove.com\/blog\/how-to-prepare-a-flower-bed\/\">flower beds<\/a>, or tight corners, select a mower that\u2019s easy to turn so you can get around easily.<\/p>    <p class=\"wp-block-paragraph\">Find the perfect mower in our product reviews:<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/lawnlove.com\/blog\/best-self-propelled-lawn-mowers\/\">Best Self-Propelled Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-riding-lawn-mowers\/\">Best Riding Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-lawn-mowers\/\">10 Best Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-gas-lawn-mowers\/\">9 Best Gas Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-battery-powered-lawn-mowers\/\">7 Best Battery-Powered Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-electric-lawn-mowers\/\">9 Best Electric Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/best-robot-lawn-mowers\/\">6 Best Robot Lawn Mowers<\/a><\/li>    <li><a href=\"https:\/\/lawnlove.com\/blog\/benefits-of-robot-lawn-mowers\/\">8 Benefits of a Robotic Lawn<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"10-faq-about-mowing\"><span id=\"faq-about-mowing\">FAQ about mowing<\/span><\/h2>    <div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1744819836842\"><strong class=\"schema-faq-question\">Can lawn fertilizer affect grass clumping?<\/strong> <p class=\"schema-faq-answer\">When you <a href=\"https:\/\/lawnlove.com\/blog\/how-to-fertilize-lawn\/\">fertilize your lawn<\/a>, the grass grows thicker, so you have to mow more frequently. If you let it get too long, you risk cutting too much at once and forming clumps. On the flip side, if you mow the right way, it can reduce clumping.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744819844656\"><strong class=\"schema-faq-question\">What time of day is better to mow?<\/strong> <p class=\"schema-faq-answer\">The best time to mow is in the late morning or early evening because your grass is dry and temperatures aren\u2019t at their peak, meaning you won\u2019t stress your lawn. You\u2019ll also have a lower risk of clumping because dry grass disperses better.<br\/><br\/>Read more: <a href=\"https:\/\/lawnlove.com\/blog\/when-not-to-mow-your-lawn\/\">When Not to Mow Your Lawn<\/a><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1744819858515\"><strong class=\"schema-faq-question\">Are self-propelled mowers better than push mowers to avoid grass clumping?<\/strong> <p class=\"schema-faq-answer\">A <a href=\"https:\/\/lawnlove.com\/blog\/self-propelled-vs-push-mower\/\">self-propelled mower<\/a> can help reduce clumping, but it\u2019s not a magic solution. The real perk is that it keeps you moving at a steady pace, which means your grass gets an even cut and your clippings spread out better.<\/p> <\/div> <\/div>    <h2 class=\"wp-block-heading\" id=\"11-let-a-pro-handle-the-mowing-for-you\"><span id=\"let-a-pro-handle-the-mowing-for-you\">Let a pro handle the mowing for you<\/span><\/h2>    <p class=\"wp-block-paragraph\">If you&#8217;re tired of dealing with grass clumping and the hassle of mowing, why not leave it to the pros? Lawn Love can connect you with a local expert to handle all of your lawn care needs, including <a href=\"https:\/\/lawnlove.com\/lawn-mowing\" target=\"_blank\" rel=\"noreferrer noopener\">mowing<\/a>, <a href=\"https:\/\/lawnlove.com\/lawn-fertilization\" target=\"_blank\" rel=\"noreferrer noopener\">fertilization<\/a>, <a href=\"https:\/\/lawnlove.com\/leaf-removal\" target=\"_blank\" rel=\"noreferrer noopener\">leaf removal<\/a>, <a href=\"https:\/\/lawnlove.com\/lawn-aeration\" target=\"_blank\" rel=\"noreferrer noopener\">aeration<\/a>, <a href=\"https:\/\/lawnlove.com\/lawn-seeding\" target=\"_blank\" rel=\"noreferrer noopener\">seeding<\/a>, and more.<\/p>   <div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-52b66c81-a869-4594-a803-a9ff1576451c\" data-mobilecollapse=\"true\" data-desktopcollapse=\"true\" data-preventcollapse=\"false\" data-showonlyone=\"false\"> <div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-74bf398b-98a8-4273-8844-fd676779c9d9\"> \t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-0-52b66c81-a869-4594-a803-a9ff1576451c\" tabindex=\"0\"> \t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-52b66c81-a869-4594-a803-a9ff1576451c\" style=\"color: #000000; \"><strong>Sources<\/strong>:<\/p> \t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div> \t\t<\/div> \t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-0-52b66c81-a869-4594-a803-a9ff1576451c\">  <ul class=\"wp-block-list\"> <li>\u201c<a href=\"https:\/\/extension.oregonstate.edu\/news\/it-best-cut-grass-often-leave-clippings-lawn\" target=\"_blank\" rel=\"noreferrer noopener\">It is best to cut grass often and leave clippings on lawn<\/a>.\u201d Published by Kym Pokorny. Source: Alec Kowalewski, Associate Professor. Oregon State University Extension Service.<\/li>    <li>\u201c<a href=\"https:\/\/ipm.ucanr.edu\/TOOLS\/TURF\/ESTABLISH\/onethird.html#:~:text=No%20more%20than%20one%2Dthird,much%20to%20stunt%20the%20growth.\" target=\"_blank\" rel=\"noreferrer noopener\">Cutting off one-third of the grass blade<\/a>.\u201d Published by the University of California Agriculture &amp; Natural Resources Department.\u201c<a href=\"https:\/\/s3.wp.wsu.edu\/uploads\/sites\/2071\/2013\/12\/Lawn-Care-Calendar.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lawn Care Calendar<\/a>.\u201d Published by Washington State University Benton County Extension<\/li> <\/ul>  <\/div> \t\t<\/div> <\/div>   <p class=\"wp-block-paragraph\">Main Photo Credit: <a href=\"https:\/\/stock.adobe.com\/images\/gardening-details-industrial-gardener-using-lawnmower-and-cutting-grass-in-garden\/286000155\" target=\"_blank\" rel=\"noreferrer noopener\">aboutmomentsimages<\/a> | Adobe Stock Free | <a href=\"https:\/\/stock.adobe.com\/jo\/license-terms\" target=\"_blank\" rel=\"noreferrer noopener\">License<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>To prevent grass from clumping when mowing, follow these 10 expert tips: use the one-third rule, mow dry grass, keep your mower blades sharp, adjust your mowing frequency, keep the right mower settings, change your mowing pattern, mulch rather than bag, clean your mower deck, address thatch issues, and, as a last-ditch effort, upgrade your mower.<\/p>\n","protected":false},"author":98,"featured_media":38245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[126],"tags":[147],"class_list":["post-38233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lawn-care-tips","tag-lawn-care"],"acf":[],"featured_image_src":"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2025\/04\/AdobeStock_286000155-1.jpeg","author_info":{"display_name":"Andie Io\u00f3","author_link":"https:\/\/lawnlove.com\/blog\/author\/andie-ioo\/"},"_links":{"self":[{"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/posts\/38233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/users\/98"}],"replies":[{"embeddable":true,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/comments?post=38233"}],"version-history":[{"count":1,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/posts\/38233\/revisions"}],"predecessor-version":[{"id":45372,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/posts\/38233\/revisions\/45372"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/media\/38245"}],"wp:attachment":[{"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/media?parent=38233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/categories?post=38233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lawnlove.com\/blog\/wp-json\/wp\/v2\/tags?post=38233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}