
Mushrooms in your backyard can be unsightly and even dangerous, especially if you have pets or children. While they are a sign of healthy soil, you may want to get rid of them. The first step is to identify the type of mushroom. Some mushrooms are harmless and can be eaten, while others are poisonous. Once identified, you can then take steps to remove them. You can simply pick and dispose of them, mow over them, or rake them away. However, this may be tedious and time-consuming. To prevent their growth, you can address the conditions that favour it, such as improving drainage and reducing thatch. Natural solutions include sprinkling coffee grounds or using horticultural vinegar, diluted with water, or baking soda dissolved in water to raise the soil pH. Commercial fungicides are also an option but should be used with caution to avoid harming other plants.
| Characteristics | Values |
|---|---|
| Prevention | Keep your yard clean and free of debris, maintain a healthy lawn, and avoid overwatering |
| Natural solutions | Sprinkle coffee grounds around the affected area to change the pH of the soil and make it inhospitable for mushrooms |
| Plant mushrooms' natural predators, such as slugs and snails | |
| Mow over the mushrooms and then pick them up | |
| Rake and discard them | |
| Pull or dig them out of the ground | |
| Mix a few drops of dish detergent and water in a spray bottle and spray where you removed the mushroom | |
| Use horticultural vinegar diluted with water in a spray bottle and spray the mushroom using precision | |
| Baking soda dissolved in water and poured over the mushrooms and surrounding soil | |
| Commercially available fungicides |
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What You'll Learn

Pick and dispose of them
Picking and disposing of mushrooms is a straightforward but tedious process. It is important to wear protective gloves when handling mushrooms, as some species can be toxic.
First, use a spade to dig out the mushrooms, ensuring you remove as much of the fungus as possible. Avoid plucking off only the mushroom head, as this will not prevent the mushroom from regrowing. Place the removed mushrooms into a plastic bag, being careful not to crush or damage them, as this could cause spores to become airborne. Seal the bag tightly to prevent spore dispersal.
After removing the mushrooms, mix a few drops of dish detergent with water in a spray bottle and spray the area where the mushrooms were removed. The detergent acts as a mild fungicide, preventing further mushroom growth. Alternatively, you can use a natural solution of horticultural vinegar diluted with water. Spray the mixture directly on the mushrooms and the surrounding soil, being careful not to get it on your plants or grass, as vinegar can be harmful to them.
While picking and disposing of mushrooms is an effective method, it is important to note that it may not prevent new mushrooms from growing. Mushrooms thrive in damp, shaded areas with organic matter for them to feed on. To prevent future mushroom growth, address the conditions that favour their growth, such as improving drainage, reducing thatch, and removing garden debris.
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Use baking soda
Baking soda is an effective, natural way to kill mushrooms in your backyard. It is also safe, non-toxic, and readily available. Mushrooms thrive in an acidic environment, but baking soda, or sodium bicarbonate, raises the pH level of the soil, making it alkaline. This creates an unfavourable environment for mushrooms, thus impeding their growth.
To use baking soda to kill mushrooms, start by dissolving two tablespoons of baking soda in one gallon of water. You can use room-temperature or warm water. Mix the solution thoroughly to ensure the baking soda is completely dissolved. Next, aerate the soil around the mushrooms. This can be done by poking holes in the soil with a stick or other tool. Then, pour the baking soda solution over the mushrooms and the surrounding soil. It is important to focus on soaking the soil rather than the mushrooms themselves, as the goal is to change the pH of the soil. That being said, it is okay if the mushrooms get wet.
After applying the baking soda solution, give it a few days to settle into the soil. You should start to see results within three days. Once the mushrooms have died, rake them into the dirt. It is important to note that while baking soda is effective, it may not have a lasting effect. The pH of the soil will eventually return to normal, and mushrooms may grow back if the conditions become conducive to their growth. Therefore, it is recommended to combine baking soda with good gardening practices, such as reducing thatch, improving drainage, and trimming back overgrown trees.
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Apply horticultural vinegar
Horticultural vinegar can be an effective way to kill backyard mushrooms. However, it is important to note that vinegar is non-selective and will damage or kill any plant it touches. Therefore, it should be applied with precision and caution.
To use horticultural vinegar to kill mushrooms, start by mixing one part vinegar with four parts water in a spray bottle. This dilution is important, as undiluted vinegar can burn your skin and harm your plants. Be sure to wear protective gloves and clothing when handling the vinegar solution.
Once the solution is mixed, spray it directly onto the mushrooms you want to remove. Saturate the mushrooms and the surrounding soil to ensure the vinegar comes into contact with the fungus. The acetic acid in the vinegar will desiccate and kill the mushrooms.
After applying the vinegar solution, leave the mushrooms to die and decompose. You may also choose to dig up and remove the mushrooms after spraying them. If you do so, be sure to respray the spot where the mushrooms were to prevent future growth.
Using horticultural vinegar can be an effective way to kill backyard mushrooms, but it is important to be cautious and precise in your application to avoid damaging desired plants.
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Mow over them
Mushrooms in your backyard can be a nuisance, especially if you have pets or children who might accidentally touch or ingest them. While mushrooms are typically harmless, some species can be poisonous. If you're looking to get rid of mushrooms in your yard, one approach you can take is to mow over them. Here's a detailed guide on how to do it effectively:
- Timing is crucial: Aim to mow over the mushrooms before they reach maturity, ideally before their caps open. This prevents the spread of spores and reduces the risk of them spreading further.
- Mowing technique: Use your lawnmower to chop the mushrooms into small pieces. A crisp, low trim with your mower can effectively break down the mushrooms and make them easier to manage.
- Proper disposal: After mowing, it's essential to rake and dispose of the mushroom pieces properly. Bag or rake the chopped mushrooms and remove them from your yard to prevent them from growing back.
- Regular mowing: Maintain a regular mowing schedule to keep your lawn at the recommended height. This promotes good airflow and sunlight penetration, creating an environment less favourable for mushroom growth.
- Combine with other methods: Mowing can be more effective when combined with other mushroom-control techniques. For example, you can aerate your lawn by using a manual or powered aerator to improve soil drainage and reduce waterlogging, which mushrooms favour.
- Safety precautions: When handling mushrooms, always wear gloves to prevent direct contact with spores. This is especially important if you have children or pets who might come into contact with the mushrooms or the affected area.
- Lawn care: In addition to mowing, maintain a healthy lawn by optimising your watering schedule and ensuring proper drainage. Mushrooms thrive in damp and dark conditions, so improving drainage and airflow can make your yard less hospitable to them.
Remember that while mowing can help control mushrooms, it may not be a permanent solution. Mushrooms can be persistent, especially if the underlying conditions that favour their growth, such as moisture and organic matter, are not addressed. Combining mowing with other preventative measures, such as those mentioned above, can increase your chances of success in keeping your yard mushroom-free.
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Improve yard drainage
Mushrooms thrive in damp, dark environments, and their presence often indicates poor yard drainage. While mushrooms are a sign of healthy soil and can benefit your lawn, you may need to get rid of them if you have pets or children who play on the lawn. Improving yard drainage can help prevent mushrooms from growing. Here are some ways to do this:
Identify Drainage Issues
Before improving yard drainage, it's essential to identify the specific issues causing poor drainage. Look for small puddles of water, muddy patches, or mushrooms themselves as indicators of drainage problems. These issues could be due to a flat yard, impacted soil, clogged gutters, or sidewalks that block water drainage.
Reroute or Extend Downspouts
Downspouts are essential for directing water away from your home's foundation. If they are not properly directed, they can contribute to poor yard drainage. By rerouting or extending your downspouts, you can ensure that water is drained away from your yard effectively.
Clean Gutters
Clogged gutters can cause flooding and poor drainage in your yard. Regularly clean your gutters to ensure that water can flow freely and be directed away from areas where you don't want mushroom growth.
Create a Rain Garden, Rain Pond, or Install Rain Barrels
Harvesting rainwater can help reduce poor drainage. Consider creating a rain garden or rain pond to collect and utilise rainwater. Alternatively, installing rain barrels can help capture and store rainwater, reducing the amount of water pooling in your yard.
Aerate Your Lawn
Aerating your lawn involves creating small holes in the ground to improve air and water circulation. This process helps water and nutrients penetrate the soil rather than sitting on the grass, promoting better drainage. You can use a manual core aerator tool or rent gas-powered aeration equipment for larger lawns.
Install a French Drain
For severe drainage issues, consider professionally installing a French drain. This involves creating a trench filled with gravel or rock and a pipe that redirects water away from your yard. It is an effective solution for yards with significant flooding or water accumulation.
While improving yard drainage is a crucial step in preventing mushroom growth, it's important to note that mushrooms can also be managed through other methods, such as raking, mowing, or using natural fungicides like vinegar or baking soda. Additionally, keeping your yard free of decaying organic matter, such as leaves or grass clippings, can help deter mushrooms.
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Frequently asked questions
There are several ways to get rid of mushrooms in your backyard. You can pull them out by hand or use a spade to dig them out. You can also mow over them with your lawnmower, making them easier to pick up. Remember to dispose of the mushrooms properly to prevent them from growing back.
Natural solutions include sprinkling coffee grounds around the affected area, as the coffee grounds will change the pH of the soil and make it inhospitable for mushrooms. You can also try using horticultural vinegar, baking soda, or garden soap spray.
Mushrooms thrive in damp, shaded areas, so it's important to keep your yard well-lit and free of standing water. You can also prevent their growth by keeping your yard clean and free of debris, maintaining a healthy lawn, and avoiding overwatering.

























