
Mushrooms in your yard can be unsightly and even dangerous, especially if you have pets or children who might accidentally ingest them. While some mushrooms are harmless and can be consumed, others may be poisonous. The first step in dealing with mushrooms is to identify the type and determine why they are growing in your yard. Mushrooms thrive in damp, dark environments with rich, healthy soil, so standing water, poor drainage, and lack of sunlight can all contribute to their growth. To get rid of mushrooms, you can try physical removal by picking, mowing, or raking them. However, this may not be feasible or safe, especially if there are too many. Other methods include using natural substances like vinegar, dish soap, or baking soda, but these can also harm your grass or other plants. Commercial fungicides can be effective but may ruin your soil and harm pets if ingested. Ultimately, prevention is key, which involves keeping your yard clean, well-lit, and free of standing water and debris.
| Characteristics | Values |
|---|---|
| Cause of mushrooms in the yard | Mushrooms are the above-ground fruit of fungus. They thrive in damp, dark environments, breaking down organic matter in the yard. |
| Preventative measures | Remove decaying organic matter, such as dead tree roots, old mulch, leaves, grass clippings, and pet waste. Improve drainage and sunlight exposure. |
| Removal methods | Digging out the mushrooms, mowing over them, applying natural fungicides (e.g., vinegar, baking soda, or coffee grounds), or using commercial fungicides. |
| Safety considerations | Some mushrooms are poisonous, so wear gloves and avoid touching or ingesting unknown mushrooms. Be cautious when using commercial fungicides, as they can harm other plants. |
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What You'll Learn

Identify the mushroom type
Mushrooms are the above-ground fruit of fungi. They come in a variety of shapes and sizes, and there are over 10,000 known mushroom species. While most mushrooms are harmless, some are toxic or even deadly, and it can be challenging to distinguish between species. Therefore, it is essential to identify the mushrooms in your yard, especially if you have young children or pets who might be tempted to eat them. Here are some tips to help you identify the type of mushroom growing in your yard:
- Consider their habitat, colour, size, shape, and any other distinguishing features, such as gills or spore print.
- Use field guides, such as the National Audubon Society Field Guide to North American Mushrooms, which includes detailed information and photos of over 600 mushroom species.
- Utilise online resources like the Mushroom Observer, which has a database of user-submitted photos and descriptions of mushrooms from around the world.
- Understand the regional variations in lawn mushrooms. For example, in the Pacific Northwest, you might find the prince, a large almond-smelling mushroom, while in the southeastern US, warm and humid conditions favour the growth of Armillaria tabescens, or the "Ringless Honey Mushroom."
- If you're unable to identify the mushroom with confidence, it's best to err on the side of caution and remove it, especially if it's within reach of children or pets. You can wear gloves and dig out the cluster of mushrooms with a shovel or spade, ensuring you remove as much of the fungus as possible.
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Remove decaying organic matter
Mushrooms thrive in damp, dark environments, breaking down organic matter in your lawn and yard. They love patches of lawn that are dead, thick with thatch, and covered in decaying leaves. They also grow in areas under trees with lots of soggy leaf mould, decaying tree stumps, and branches.
To prevent mushrooms from growing, you should remove decaying organic matter from your yard. Here are some steps to remove decaying organic matter and prevent mushrooms from growing:
- Remove dead tree roots, old mulch, decaying leaves, wood, and pet waste.
- Rake up grass clippings and dethatch your yard.
- Remove old tree stumps so they do not encourage mushroom growth.
- Fix poorly draining spots in your yard.
- Clean garden debris and trim growth to let more sunlight into the area.
By removing decaying organic matter, you can help prevent mushrooms from growing in your yard. However, it's important to note that mushrooms are a sign of a healthy yard, and they can be beneficial to your lawn. They break down organic matter and deposit nutrients in the soil, helping your lawn to grow. Therefore, unless you are intentionally growing them, you may want to remove mushrooms simply for aesthetic reasons or to prevent children or pets from consuming them.
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Use a natural fungicide
While fungi are beneficial to your lawn, you may need to target mushrooms that are obstructive. Natural fungicides can be used to remove mushrooms without resorting to chemical treatments, which can be harmful to your lawn, pets, and wildlife.
One natural fungicide is vinegar, which contains acetic acid, a substance that can kill mushrooms. To make this natural fungicide, mix one part vinegar with four parts water. Transfer the mixture to a spray bottle and apply it directly to the mushrooms and the infected area. However, be cautious as vinegar will also injure grass and other plants if applied too heavily.
Another natural fungicide can be made by mixing baking soda and water. Start by dissolving 2 tablespoons of baking soda in a gallon of water. Aerate the soil well around the mushrooms and pour the mixture around and over them so that the water drains freely into the soil. Be careful not to overwater, as this method requires multiple applications to be effective. Baking soda raises the pH of the soil, which can prevent the growth of mushrooms. However, too much baking soda will tip the balance of pH the wrong way, and grass will not grow in high pH soil.
A third option for a natural fungicide is to use dish soap and water. Mix 1-2 tablespoons of dish soap with 3 gallons of water. Aerate the area around the mushrooms so that the water drains well, then pour the mixture over them. Like the baking soda method, this method changes the pH level of the soil. However, caution should be exercised as too much dish soap will also tip the pH balance the wrong way, preventing grass growth.
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Mow over the mushrooms
Mushrooms in your yard can be a nuisance, especially if you have children or pets. While they are a sign of a healthy yard with good-quality soil, they can also be poisonous.
One way to get rid of mushrooms is to mow over them. This method is best used in conjunction with other preventative measures, as mowing alone will not prevent mushrooms from growing back. Here are some tips for using the mowing method effectively:
First, it is important to understand why mushrooms grow in your yard. Mushrooms are the fruit of fungi, which thrive in damp, dark environments with organic matter to break down. They can grow quickly once conditions are right, and their spores can lie dormant in the soil for a long time.
By mowing your lawn, you can help to prevent mushroom growth by keeping your grass short and dry. Short grass dries out more quickly than long grass, making your yard less attractive to mushrooms. Mow over any mushrooms that are already growing to chop them up into small pieces, then pick up the pieces and dispose of them properly. Do not dispose of mushroom pieces with your grass clippings or other lawn waste, as this can amplify the problem by providing more food for the fungi.
To further prevent mushroom growth, you can improve drainage and air circulation in your yard. Aerate your lawn using a tool like the Yard Butler, which pulls plugs of soil out of the grass to allow better air circulation and drainage. You should also avoid overwatering your lawn and water early in the day so that the grass does not remain damp through the evening.
Additionally, keep your yard clean and free of debris that mushrooms can feed on, such as decaying leaves, grass clippings, pet waste, and decomposing wood chips or branches. By combining these preventative measures with mowing over existing mushrooms, you can effectively reduce mushroom growth in your yard.
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Make your yard less mushroom-friendly
Mushrooms in your yard can be unsightly, poisonous, and harmful to pets and children. To prevent and eliminate mushrooms, you need to make your yard less mushroom-friendly. Here are some ways to do that:
Keep your yard clean and well-maintained: Mushrooms thrive in damp, dark environments with decaying organic matter. Regularly rake up and dispose of grass clippings, fallen leaves, and other organic debris. Remove dead tree roots, old mulch, decaying wood, and pet waste. By removing their food source and reducing shade, you make it harder for mushrooms to grow.
Improve drainage and sunlight: Mushrooms need moisture to grow and reproduce. Ensure your yard has good drainage to prevent water from pooling and creating damp conditions. Avoid overwatering your garden, and consider installing a French drain to help water drain faster. Mushrooms also prefer shady spots, so increase sunlight exposure by trimming branches and ensuring your yard is well-lit.
Use natural repellents: Change the pH of the soil and make it inhospitable for mushrooms by sprinkling coffee grounds or baking soda (one tablespoon per gallon of water) over affected areas. You can also try planting mushrooms' natural predators, such as slugs and snails, in your garden.
Apply fungicides: While some people advise against using fungicides as they can harm your soil and other plants, natural fungicides like vinegar (one part vinegar to four parts water) can be effective. Just be cautious, as vinegar can kill anything it comes into contact with. If you choose to use a commercial fungicide, carefully follow the directions to avoid harming other plants.
Dig up and dispose of mushrooms: When you spot mushrooms, dig them up with a shovel, removing as much of the fungus as possible. Mow over the area to chop up any remaining pieces, then collect and dispose of the mushroom fragments in a sealed trash bag. Do not dispose of mushrooms with your lawn waste, as this can provide food for new mushroom growth.
Remember, mushrooms are the fruit of the fungus, and the main body lives underground. To effectively reduce mushroom growth, you need to target the underlying fungus and make your yard less conducive to their development.
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Frequently asked questions
Mushrooms thrive in damp, dark places, so one way to prevent them from growing is to ensure your yard is well-lit and free of standing water. You can also try natural fungicides such as vinegar, diluted with 4 or 5 parts water to 1 part vinegar, and sprayed directly onto the mushrooms.
Mushrooms feed on decaying organic matter in the soil, so removing dead tree roots, old mulch, decaying leaves, wood, and pet waste can help prevent mushrooms from growing.
You can use a commercial fungicide, but keep in mind that this will only kill the mushrooms above ground and not the fungi in the soil.
Mushrooms are a sign of flourishing fungi in your yard, which is beneficial as it breaks down decaying leaves and other organic matter, depositing nutrients into the soil. If you want to prevent their growth without killing them, you can plant mushrooms' natural predators, such as slugs and snails, in your garden.

























