{"id":136991,"date":"2025-07-29T10:54:48","date_gmt":"2025-07-29T13:54:48","guid":{"rendered":"https:\/\/www.lawnstarter.com\/blog\/?p=136991"},"modified":"2025-08-19T08:06:20","modified_gmt":"2025-08-19T11:06:20","slug":"signs-need-to-replace-mulch","status":"publish","type":"post","link":"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/","title":{"rendered":"6 Signs You Need to Replace Your Mulch"},"content":{"rendered":"<p>Discoloration, thinning out, diseases, and excessive weeds are important signs that you need to replace your mulch. Pests issues and fungal growth also indicate it\u2019s time for a refresh.<\/p>   <div class=\"wp-block-ub-table-of-contents-block ub_table-of-contents\" id=\"ub_table-of-contents-785f4b8c-b194-4bc1-ab06-ebec34dc8f26\" 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=\"\">These are the 6 signs it\u2019s time to replace your mulch:<\/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:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#0-1-faded-or-discolored-mulch\" style=\"\">1. Faded or Discolored Mulch<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#1-2-excessive-weed-growth\" style=\"\">2. Excessive Weed Growth<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#2-3-thin-or-compacted-mulch\" style=\"\">3. Thin or Compacted Mulch<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#3-4-fungal-growth-or-mold\" style=\"\">4. Fungal Growth or Mold<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#4-5-pest-infestations\" style=\"\">5. Pest Infestations<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#5-6-poor-plant-growth\" style=\"\">6. Poor Plant Growth<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/signs-need-to-replace-mulch\/#6-faq\" style=\"\">FAQ<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>   <h2 class=\"wp-block-heading\" id=\"0-1-faded-or-discolored-mulch\">1. Faded or Discolored Mulch<\/h2>    <p>Discoloring is a clear sign that it\u2019s time to get new mulch. Whether you have dyed mulch or not, over time, it will start to fade due to weather and sun exposure.<\/p>    <p>If your mulch is fading, it\u2019s likely on its way out and struggling to protect your garden. As a last attempt to revive its color, turn it with a rake. If that doesn\u2019t work, replace it to keep your garden beds looking their best.<\/p>    <p><strong>See Related:<\/strong>&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/how-to-choose-right-mulch-color\/\">How to Choose the Right Mulch Color for Your Landscape<\/a><\/li>    <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/reviews\/best-garden-rakes\/\">5 Best Garden Rakes [Reviews]<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"1-2-excessive-weed-growth\">2. Excessive Weed Growth<\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed.jpeg?wsr\" alt=\"A gardener holding a bunch of weeds with a large root system.  \" class=\"wp-image-134201\" srcset=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed.jpeg 800w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed-300x200.jpeg 300w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed-656x437.jpeg 656w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed-150x100.jpeg 150w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/05\/pulling-weed-768x512.jpeg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Photo Credit: <a href=\"https:\/\/stock.adobe.com\/images\/gardener-holding-a-weed-bunch-dandelion-plant-with-large-roots-system\/598546452\" target=\"_blank\" rel=\"noreferrer noopener\">Tunatura<\/a> \/ Adobe Stock \/ <a href=\"https:\/\/stock.adobe.com\/license-terms\" target=\"_blank\" rel=\"noreferrer noopener\">License<\/a><\/figcaption><\/figure>    <p>The presence of <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/reasons-why-weeds-grow-in-lawn\/\">lawn weeds<\/a> is probably the most obvious sign that you should replace your mulch or change your mulching strategy. At the beginning of spring, check for any new growth you didn\u2019t plant yourself last summer or fall. If weeds have made an unwelcome appearance, it\u2019s time to do a spring refresh and add more (or a different type of) mulch.&nbsp;<\/p>    <p>If your current mulch isn\u2019t doing its job, you can also try adding landscaping fabric underneath bark or rocks to prevent weeds from growing in your landscaping beds.&nbsp;<\/p>    <p>If it\u2019s time for a refresh, use our <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/mulch-calculator-how-much-mulch-do-you-need\/\">Mulch Calculator<\/a> to determine how much mulch you\u2019ll need.<\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>If you need someone to help you pull those pesky weeds from your garden bed, <a href=\"https:\/\/www.lawnstarter.com\/landscaping\">contact a LawnStarter landscaping pro<\/a> to help you out. Our customers spend around <strong>$96 for our flower bed weeding services <\/strong>and around <strong>$286 for mulching services<\/strong>.<\/td><\/tr><\/tbody><\/table><\/figure>    <p><strong>See Related:&nbsp;<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/landscape-fabric-guide-types-uses\/\">Landscape Fabric Types and How to Use Them<\/a><\/li>    <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/how-to-install-landscape-fabric\/\">How to Install Landscape Fabric (in 9 Easy Steps)<\/a><\/li>    <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/landscape-fabric-alternatives\/\">9 Alternatives to Landscape Fabric<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"2-3-thin-or-compacted-mulch\">3. Thin or Compacted Mulch<\/h2>    <p><strong>Thinning mulch: <\/strong>If you live in an area prone to extreme temperatures, heavy rainfall, and high humidity, your mulch may break down faster and visibly decrease in volume. As it decomposes, it provides nutrition for the soil, but this also means there is less mulch to combat weeds and protect your soil and plants.<\/p>    <p>If your mulch layer is getting too thin (under 2 inches for landscaping beds), add another layer to continue reaping the benefits.<\/p>    <p><strong>Compacted mulch: <\/strong>If you notice your mulch is matted and sticking together, this might be due to compaction. Rake the mulch to improve airflow and spread it out into a thinner layer to prevent it from compressing.<\/p>    <p>Check out our guide on <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/how-to-mulch-yard\/\">How to Mulch Your Yard<\/a> for more information.&nbsp;<\/p>    <h2 class=\"wp-block-heading\" id=\"3-4-fungal-growth-or-mold\">4. Fungal Growth or Mold<\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch.jpg\" alt=\"Close-up of decaying mulch with discolored, compacted bark chips and organic debris, showing signs of age and potential fungal growth\" class=\"wp-image-136996\" srcset=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch.jpg 800w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch-300x225.jpg 300w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch-656x492.jpg 656w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch-150x113.jpg 150w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2025\/07\/damaged-mulch-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Photo Credit: <a href=\"https:\/\/stock.adobe.com\/images\/the-ground-under-spruce-tree-covered-with-fallen-bark\/395564755\" target=\"_blank\" rel=\"noreferrer noopener\">rdonar<\/a> \/ Adobe Stock<\/figcaption><\/figure>    <p>Your mulch pile may also become infested with diseases. These can include bacterial diseases, such as bacterial blight, and fungal diseases, such as powdery mildew, artillery fungus, and root rot.<\/p>    <p>Here\u2019s what you can do to prevent or minimize this problem:<\/p>    <ul class=\"wp-block-list\"> <li><strong>Regularly turn and fluff<\/strong> your mulch to increase airflow.&nbsp;<\/li>    <li><strong>Stick with the recommended <\/strong><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/how-deep-should-mulch-be\/\">mulch depth<\/a><strong> <\/strong>for that space (landscaping bed, tree, or garden). You want the depth to be \u201cjust right\u201d \u2014 not too deep or too shallow.<\/li>    <li><strong>Avoid overwatering <\/strong>to prevent high moisture levels.<\/li>    <li><strong>Try both<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/organic-mulch-vs-inorganic-mulch\/\">organic and inorganic mulch<\/a> in different beds around your landscape to compare results and create a more disease-resistant environment.<\/li> <\/ul>    <p><strong>See Related:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/powdery-mildew\/\">How to Treat Powdery Mildew On Your Lawn<\/a><\/li>    <li><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/take-all-root-rot-in-turfgrass\/\">How to Identify and Prevent Take-All Root Rot in Turfgrass<\/a><\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"4-5-pest-infestations\">5. Pest Infestations<\/h2>    <p>Inspect your mulch pile periodically to check for pest infestations. Mulch piles create a humid and sheltered environment that attracts all kinds of critters: from snails and slugs to beetles and termites. Try cedar mulch or cypress mulch (which have insect-repelling properties) if you\u2019re having problems with pests.&nbsp;&nbsp;<\/p>    <p><strong>See Related: <\/strong><a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/types-of-mulch\/\">Types of Mulch for Your Landscape<\/a><\/p>    <h2 class=\"wp-block-heading\" id=\"5-6-poor-plant-growth\">6. Poor Plant Growth<\/h2>    <p>Inorganic mulch may not be as effective for plant growth. Additionally, <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/types-of-inorganic-mulch\/\">inorganic mulches<\/a> made of black rubber or plastic can absorb heat and cause heat stress, impairing plant growth. If your plants are struggling, try <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/types-of-organic-mulch\/\">organic mulches<\/a> instead. Organic options will keep your soil cooler and add organic matter as they decompose, boosting plant growth and health.<\/p>    <h2 class=\"wp-block-heading\" id=\"6-faq\">FAQ<\/h2>    <div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1753552004004\"><strong class=\"schema-faq-question\">How Often Should I Replace my Mulch?<\/strong> <p class=\"schema-faq-answer\">Most inorganic mulches should be replaced every 3 to 5 years, while <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/types-of-organic-mulch\/\">organic mulches<\/a> should be replaced every 1 to 2 years. See more details in our article: <a href=\"https:\/\/www.lawnstarter.com\/blog\/landscaping\/how-often-should-you-replace-mulch\/\">How Often Should You Replace Mulch?<\/a><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1753552011381\"><strong class=\"schema-faq-question\">Can I Just Add New Mulch Over Old Mulch?<\/strong> <p class=\"schema-faq-answer\">You can add new mulch over old mulch, but remember to fluff it up before adding more. Unless the old mulch is matted, you don\u2019t need to remove all the old mulch before adding new.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1753552016730\"><strong class=\"schema-faq-question\">What&#8217;s the Best Time of the Year to Replace Mulch?<\/strong> <p class=\"schema-faq-answer\">Early spring, after your spring plants are in the ground, is the best time of year to apply mulch.\u00a0<\/p> <\/div> <\/div>    <h2 class=\"wp-block-heading\" id=\"7-when-to-call-a-professional\">When to Call a Professional<\/h2>    <p>If you don\u2019t know where to start, consider contacting one of our <a href=\"https:\/\/www.lawnstarter.com\/landscaping\">local landscaping pros<\/a> to do the mulching for you. Get a free quote today to keep your flower beds healthy and strong without lifting a finger.<\/p>    <p>Main Photo Credit: A landscaper replaces mulch along a tree line. <a href=\"https:\/\/stock.adobe.com\/images\/professional-gardener-arranging-the-garden-mulch-in-the-front-yard\/548594676\" target=\"_blank\" rel=\"noreferrer noopener\">Tomasz Zajda<\/a> \/ Adobe Stock<\/p>    <p><\/p>","protected":false},"excerpt":{"rendered":"<p>Discoloration, thinning out, diseases, and excessive weeds are important signs that you need to replace your mulch. 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