- Excess moisture<\/a><\/li>
- Shade<\/a><\/li>
- Poor drainage<\/a><\/li>
- Excess thatch<\/a><\/li>
- Rich, organic material<\/a><\/li>
- Underground fungal networks<\/a><\/li>
- When mushrooms might indicate a bigger problem<\/a><\/li>
- FAQ<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>
Excess moisture<\/span><\/h2>
Mushrooms pop up seemingly overnight in wet conditions. How do they grow so fast? Horticulture professor Megan Kennelly says they are packed into a small, egg-like structure that \u201ccan expand quickly, like one of those sponge-animals that expands when you put it in a bucket\u201d.<\/p>
You can\u2019t thwart heavy rains that encourage mushroom growth, but you can be mindful of how much you\u2019re irrigating your lawn with your sprinkler system. <\/p>
Use some basic logic: Don\u2019t run your sprinkler during rainy periods. And when you do water, do so in the morning and allow the sun to dry out the grass in the middle of the day. Finally, remember that grass in shade often needs less water than grass under full sun.<\/p>
Read more:<\/strong><\/p>
- The Best Time to Water your Grass<\/a><\/li>
- How Often Should I Water My Lawn with A Sprinkler<\/a><\/li> <\/ul>
Shade<\/span><\/h2>
Shade goes hand-in-hand with extra moisture. Because they don\u2019t get sunlight, shaded areas are often cooler \u2013 and by extension, damper. <\/p>
Trees are excellent at providing shade, which makes them prime real estate for \u2018shrooms. It may be time to trim and prune some of the branches to let more sunlight filter down to your yard.<\/p>
Read more:<\/strong><\/p>
- How to Trim Tall and Overgrown Bushes<\/a><\/li>
- When to Trim Bushes and Trees<\/a><\/li> <\/ul>
Poor drainage<\/span><\/h2>
If mushrooms keep appearing after rain, they\u2019re often a symptom of poor drainage, not the cause of lawn damage. Griesbaum explains that when lawns struggle and mushrooms are abundant, \u201cit\u2019s usually a parallel problem, such as poor drainage, excess moisture, or buried debris. Fungi love those conditions, but it\u2019s not the fungus itself that\u2019s hurting your lawn.\u201d <\/p>
When water sits too long, it suffocates roots and weakens grass. The solution is to fix the drainage, not fight the mushrooms. Installing a French drain, yard drain, or rain barrel can help redirect excess water. If your soil is compacted and forming puddles, aerating the lawn will improve air and water flow, helping your yard dry out.<\/p>
Read more: <\/strong><\/p>
- 14 Ways To Manage Stormwater Runoff<\/a><\/li>
- Lawn Drainage Solutions<\/a><\/li>
- How to Get Rid of Standing Water in Your Yard<\/a><\/li> <\/ul>
Excess thatch<\/span><\/h2>
![\"Illustration](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration.jpg\")
Infographic by Juan Rodriguez<\/figcaption><\/figure> Excess thatch is a two-for-one special for mushrooms, trapping moisture and feeding them. The thatch layer consists of living and decaying organic matter sandwiched between grass and the soil. Mushrooms decompose this organic matter and then feast on the nutrients.<\/p>
The problem arises when the thatch layer becomes thicker than \u00bd-inch because it contributes to soil compaction and holds onto water. <\/p>
Read more:<\/strong> <\/p>
- What is Thatch?<\/a><\/li>
- How to Dethatch Your Lawn<\/a><\/li> <\/ul>
Rich, organic material<\/span><\/h2>
Fungi feed on organic matter such as fallen leaves, twigs, logs, stumps, rotting roots, or even animal waste. <\/p>
Robert Olen, horticulturist at the University of Minnesota Extension, notes that fungi are \u201cobligate parasites,\u201d meaning they rely on decaying organic material as their food. He adds, \u201cThey do not contain any chlorophyll, so they cannot produce any of their own food.\u201d<\/p>
Mushrooms are a natural part of the cleanup crew, breaking down organic debris and enriching the soil. If you\u2019d like to reduce their appearance, simply remove what they feed on: rake up leaves, clear away old stumps, and keep your yard clean. <\/p>
Read more: <\/strong>How to Clean Your Yard<\/a><\/p>
Underground fungal networks<\/span><\/h2>
Beneath your lawn lies a hidden world of fungi\u2014 the real reason mushrooms appear on the surface. Oslen explains that mushrooms are simply \u201cthe fruiting body (as they contain reproductive spores) for fungi that reside in the soil.\u201d <\/p>
These underground fungi form vast, thread-like structures called hyphae that weave throughout the soil. Griesbaum explains that when these hyphae connect with plant roots, they form mycorrhizae, a mutually beneficial relationship. In this partnership, \u201cmany fungi are actually helping plants access more water and nutrient resources for photosynthesis in return for carbon, which the fungi use for energy,\u201d she adds. <\/p>
When mushrooms might indicate a bigger problem<\/span><\/h2>
![\"The](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2024\/09\/Fairy-ring-mushrooms-1.jpeg\")
Unlike some varieties, fair ring mushrooms can harm grass. Photo Credit: Supratchai<\/a> \/ Adobe Stock<\/figcaption><\/figure> While most mushrooms are harmless and even beneficial, a few can signal trouble in your yard. Two common culprits are fairy rings and honey fungus. The former attacks grass, while the latter signals disease in trees. <\/p>
Fairy rings<\/strong> manifest most visibly as expanding rings of white or tan mushrooms. These mushrooms can either cause the grass beneath them to grow greener or die. The first happens because the fungi decompose organic matter, and fertilizing your lawn can help even out the color and growth.<\/p>
The second occurs because the hydrophobic fungi have colonized the soil, preventing water from penetrating the soil. To cure this, aerate your lawn and use a wetting agent to help water seep into the soil. Overseed your lawn to fix bare spots.<\/p>
See related: What is Fairy Ring and How to Get Rid of It<\/a><\/p>
Honey fungus <\/strong>pops up at the base of trees or stumps. Appearing in fall, these light brown mushrooms signal a common disease called Armillaria root rot, which targets the cambium, the part of a tree responsible for growing bark and wood. \u201cAny injury to these tissues disrupts their functions and affects growth,\u201d says extension specialist Travis Cleveland.<\/p>
Unfortunately, the appearance of these honey-colored mushrooms often heralds the end of a tree or shrub. \u201cThe mushrooms usually don’t appear until the host tree is dead or in advanced stages of decline,\u201d say experts from the University of California. Even removing the dead tree won\u2019t help because the fungi responsible persist in the soil for decades.<\/p>
FAQ<\/span><\/h2>
How do I remove lawn mushrooms?<\/strong>Pluck or cut them out, stick them in a paper bag, and throw them away. If you\u2019re concerned about getting poisoned, mushroom expert Marc Cubeta recommends using latex gloves. However, he notes that \u2013 apart from the rare allergic reaction \u2013 touching mushrooms will not result in poisoning.<\/p> <\/div>
Are mushrooms bad for my lawn?<\/strong>Most mushrooms are not bad for your lawn. They do spread spores that produce more fungi, but they\u2019re more of a signal of the ones existing in the soil. They can be a sign of other problems in your lawn, like excessive thatch and overwatering.<\/p> <\/div>
What kinds of mushrooms grow in lawns?<\/strong>Fairy ring mushrooms include the fairy ring mushroom, meadow mushroom, and false parasol; the first two are edible, but it\u2019s wise not to gamble if you aren\u2019t a mushroom expert.
Will fertilizing help eliminate mushrooms?<\/strong>Yes, nitrogen fertilizer can help eliminate mushrooms because it speeds up decomposition. When a mushroom\u2019s food source is depleted, it goes away.
How long do mushrooms typically last?<\/strong>The mushrooms disappear after their preferred growing conditions stop being met. However, they will continue to spring up when these conditions happen again. \u201cThe mushrooms will disappear permanently when the organic matter they are decomposing has been exhausted,\u201d says extension specialist Aaron Steil.<\/p> <\/div> <\/div>
Hire a pro for a clean, beautiful lawn<\/span><\/h2>
Keeping your lawn mushroom-free often involves good lawn management. If you\u2019re too busy to properly care for your lawn, hire a Lawn Love pro<\/a> to handle the mowing, fertilizing<\/a>, aeration<\/a>, and yard cleanup<\/a> for you instead.<\/p>
\t\t\t\t\t\tSources:<\/strong><\/p> \t\t\t
<\/span><\/div> \t\t<\/div> \t\t\tKarla Griesbaum<\/a>. Environmental and Energy Stewardship Educator. University of Illinois Extension. Personal Interview.\u00a0<\/p>
Robert Olen<\/a>. Horticulturist. University of Minnesota Extension. St. Louis County. Personal Interview.\u00a0\u00a0<\/p>
Travis Cleveland<\/a>, extension specialist at the University of Illinois Urbana-Champaign Extension, Urbana, IL. Personal interview.<\/p>
\u201cFungi thriving in wet conditions<\/a>.\u201d By Megan Kennelly, professor and department head. Kansas State University.<\/p>
\u201cMushrooms Growing in Turf<\/a>.\u201d By Travis Cleveland, extension specialist. University of Illinois Urbana-Champaign Extension.<\/p>
\u201cArmillaria Root Rot<\/a>.\u201d By A.J. Downer, I.L. Lacan, K. Windbiel-Rojas, A.M. Sutherland, B. Messenger-Sikes. University of California Agriculture and Natural Resources.<\/p>
- How to Dethatch Your Lawn<\/a><\/li> <\/ul>
- Lawn Drainage Solutions<\/a><\/li>
- When to Trim Bushes and Trees<\/a><\/li> <\/ul>
- How Often Should I Water My Lawn with A Sprinkler<\/a><\/li> <\/ul>
- Shade<\/a><\/li>