This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.
You can get rid of mushroom fungus by identifying the type of growth you’re dealing with, removing the visible mushrooms, and then addressing the underlying moisture problem that allowed them to thrive.
If you’ve been asking yourself how to get rid of mushroom fungus in your lawn, garden, or even inside your home, the good news is that it’s a fixable issue with the right approach.
Mushroom fungus isn’t a disease itself, but rather a sign that conditions are perfect for fungal spores to spread and multiply.
In this post, we’ll walk through practical, step-by-step methods for getting rid of mushroom fungus, why it keeps coming back, and how to prevent it from returning for good.
Let’s dig in and get your space mushroom-free.
Why Mushroom Fungus Appears in the First Place
Mushroom fungus appears because the environment is giving it exactly what it needs to grow.
The main culprit is always excess moisture, whether that’s from overwatering, poor drainage, or humid conditions.
When organic matter like dead roots, wood, or grass clippings is present and stays damp, it becomes a feast for fungal spores.
Those spores then germinate, and before you know it, you’re staring at a cluster of mushrooms popping up overnight.
Understanding this is the first big step in learning how to get rid of mushroom fungus effectively.
1. Moisture Is the Number One Trigger
Mushroom fungus cannot survive without consistent moisture.
If you have a spot that stays soggy, like a low area in your yard or a poorly ventilated bathroom, that’s where you’ll see growth.
Reducing that moisture is the single most powerful action you can take to get rid of mushroom fungus.
2. Organic Matter Feeds the Fungus
Underground, mushroom fungus feeds on decomposing organic material.
Old tree stumps, buried construction debris, and even thatched grass create a buffet for fungal colonies.
Remove the food source, and you’ll make it much harder for the mushroom fungus to stick around.
How to Get Rid of Mushroom Fungus in Your Lawn
Getting rid of mushroom fungus in your lawn takes a little patience, but it’s completely doable.
Start by picking or raking up every visible mushroom you can find.
Toss them in a sealed bag and throw them away, don’t compost them, because the spores can spread and regrow.
Next, focus on drying out the lawn and removing the conditions that welcome mushroom fungus back.
1. Improve Drainage to Dry Out the Soil
Mushroom fungus thrives in compacted, waterlogged soil.
Aerate your lawn with a core aerator to let water and air move through the ground more easily.
If the area is especially low and collects water, consider adding a French drain or grading the soil to redirect runoff.
Drier soil means less mushroom fungus, plain and simple.
2. Remove Hidden Organic Debris
If you keep seeing mushroom fungus pop up in the same spot, dig down a few inches and check for buried wood or roots.
You can get rid of mushroom fungus permanently by excavating that rotting material and replacing it with fresh soil.
Dethatching your lawn also helps, as a thick layer of dead grass traps moisture and feeds fungal growth.
3. Adjust Your Watering Habits
Overwatering is one of the fastest ways to invite mushroom fungus into your yard.
Water deeply but less frequently, and try to water in the early morning so the grass has time to dry during the day.
If you’ve been watering daily, cut back and watch the mushroom fungus slowly disappear.
How to Get Rid of Mushroom Fungus Indoors
Mushroom fungus inside your home is a different beast, but the core principle stays the same.
You have to eliminate moisture and remove the organic matter that’s feeding the growth.
Common indoor spots include basements, bathrooms, and areas near leaking pipes.
1. Fix Leaks and Reduce Humidity
Check for any plumbing leaks or condensation issues that might be creating a damp environment.
Use a dehumidifier in basements or crawl spaces to keep humidity levels below 50 percent.
Mushroom fungus needs high humidity to thrive, so drying out the air is essential.
2. Clean Surfaces with a Fungicide
Scrub affected areas with a mixture of water and white vinegar, or apply a commercial fungicide labeled for indoor use.
Wear gloves and a mask, because you don’t want to inhale spores.
After cleaning, dry the area thoroughly with a fan to make sure no moisture remains.
3. Replace Damaged Wood or Drywall
If mushroom fungus has penetrated into wood studs or drywall, simply cleaning the surface won’t be enough.
Cut away and replace the affected materials to get rid of mushroom fungus at the root.
This also protects your home’s structural integrity and prevents long-term damage.
Natural and Chemical Options to Kill Mushroom Fungus
You have a few solid options when it comes to actually killing mushroom fungus, and they range from gentle to aggressive.
Natural methods work well for mild cases, while chemical fungicides are better for stubborn infestations.
Always follow label instructions and consider the surrounding plants or pets before applying anything.
1. Dish Soap and Water Spray
Mix a couple of tablespoons of dish soap with a gallon of water and spray it directly on the mushrooms.
This solution dehydrates the mushroom fungus and causes it to wither within a day or two.
It won’t kill the underground mycelium, but it’s a quick fix for visible growth.
2. Lime or Nitrogen-Rich Fertilizer
Applying agricultural lime can make the soil more alkaline, which mushroom fungus doesn’t enjoy.
Similarly, a nitrogen-rich fertilizer speeds up the decomposition of organic matter so the fungus runs out of food.
Both of these are great long-term strategies to get rid of mushroom fungus naturally.
3. Commercial Fungicides
For persistent mushroom fungus, a broad-spectrum fungicide can be applied to the soil or affected surface.
These products target the mycelium underground, which stops future mushrooms from sprouting.
Use them sparingly, as they can also harm beneficial soil organisms.
So, How to Get Rid of Mushroom Fungus Permanently?
You can get rid of mushroom fungus permanently by combining moisture control, organic matter removal, and targeted treatments.
The key is addressing the root cause rather than just picking the mushrooms you can see.
If you skip the moisture issue, the mushroom fungus will keep coming back no matter how many times you remove it.
Start by drying out the area, removing any hidden debris, and adjusting your watering or ventilation habits.
Then, use natural or chemical treatments to knock out the remaining fungal colonies.
With consistent effort, you’ll have a lawn or home that’s free of mushroom fungus and much less inviting to new growth.
So roll up your sleeves, take these steps one by one, and say goodbye to mushroom fungus for good.