Mushrooms in houseplants often indicate overwatering or poor drainage in the potting mix. If you are searching for how to get rid of mushrooms in houseplants, you are likely dealing with small yellow or brown fungi sprouting from the soil. These mushrooms are usually harmless to your plant, but they can be unsightly and signal that your growing conditions need adjustment. The good news is that removing them is straightforward once you understand the root cause.
Mushrooms thrive in moist, organic-rich environments. Your potting soil, especially if it contains compost or bark, provides the perfect food source for fungal spores. When you water too often or your pot lacks drainage, the spores germinate and produce mushrooms. The key is to break this cycle without harming your plant.
Why Mushrooms Appear In Houseplant Soil
Mushrooms are the fruiting bodies of fungi living in the soil. They release spores to reproduce. In houseplants, the most common type is the Leucocoprinus birnbaumii, a small yellow mushroom. These fungi are saprophytic, meaning they feed on decaying organic matter.
Overwatering is the number one cause. When soil stays wet for too long, fungi multiply. Poor drainage, such as pots without holes or compacted soil, also traps moisture. High humidity and low airflow around the plant can encourage mushroom growth too.
Another factor is the potting mix itself. Many commercial mixes contain uncomposted bark or wood chips, which fungi love. If you recently repotted with fresh soil, you might have introduced spores. Spores are everywhere in the air, so they can land on your soil at any time.
How To Get Rid Of Mushrooms In Houseplants
Now let’s get to the practical steps. Follow this plan to remove existing mushrooms and prevent them from coming back. Each step is simple and uses common household items.
Step 1: Remove Visible Mushrooms Manually
Start by picking off any mushrooms you can see. Wear gloves if you prefer, but they are not necessary. Pull them gently from the base, including the stem. Dispose of them in a sealed bag or outside, not in your compost bin. This prevents spores from spreading indoors.
Do not leave mushroom pieces on the soil surface. They can still release spores. Check the soil every few days for new growth. Manual removal is a temporary fix, but it stops the immediate problem.
Step 2: Let The Soil Dry Out
Mushrooms need moisture to survive. Allow the top inch or two of soil to dry completely before watering again. Stick your finger into the soil. If it feels damp, wait. Most houseplants prefer slightly dry conditions between waterings anyway.
For plants that need constant moisture, like ferns, you can still reduce watering frequency. Water only when the soil feels barely moist. This dries out the fungal environment without stressing your plant.
Step 3: Improve Drainage
Check if your pot has drainage holes. If not, repot into a container with holes. Add a layer of gravel or perlite at the bottom to improve water flow. You can also mix perlite or coarse sand into the potting soil to make it lighter.
If your plant is in a decorative pot without holes, remove it when watering. Let excess water drain away completely. Never let the pot sit in standing water. This simple change can stop mushrooms from forming.
Step 4: Increase Air Circulation
Stagnant air helps fungi grow. Place a small fan near your plants on low speed for a few hours each day. Open a window if weather permits. Moving air dries the soil surface faster and reduces humidity around the pot.
Avoid crowding your plants together. Space them out so air can flow between leaves and soil. This also helps prevent other fungal issues like mold on the soil.
Step 5: Scrape Off The Top Layer Of Soil
If mushrooms keep returning, remove the top inch of soil. Use a small trowel or spoon. Discard this soil and replace it with fresh, dry potting mix. This removes many spores and fungal hyphae that are near the surface.
Be careful not to damage plant roots. For shallow-rooted plants, only scrape off half an inch. This method works well combined with drying out the remaining soil.
Step 6: Use A Natural Fungicide
You can treat the soil with a mild fungicide. Mix one part hydrogen peroxide (3%) with four parts water. Water your plant with this solution. It kills fungal spores on contact without harming most plants. Test on a small area first if you are unsure.
Another option is cinnamon powder. Sprinkle a thin layer on the soil surface. Cinnamon has natural antifungal properties. It is safe for plants and pets. Reapply after watering until mushrooms stop appearing.
Step 7: Repot With Sterile Soil
If all else fails, repot your plant entirely. Choose a sterile potting mix designed for indoor plants. Avoid mixes with large wood chunks or uncomposted bark. Sterile soil has fewer spores and less organic matter for fungi to eat.
Clean the pot thoroughly with soap and water before repotting. Rinse the plant roots gently to remove old soil. Use fresh, dry soil and water sparingly for the first week. This gives your plant a fresh start.
Preventing Mushrooms From Coming Back
Once you have removed the mushrooms, prevention is key. Follow these long-term habits to keep your houseplant soil fungus-free.
Water Wisely
Water only when the top inch of soil is dry. Use a moisture meter if you tend to overwater. Water deeply but less often. This encourages roots to grow deeper and keeps the surface drier.
For plants in low light, they need even less water. Adjust your schedule based on the season. In winter, most houseplants need less frequent watering.
Choose The Right Pot
Always use pots with drainage holes. Terra cotta pots are porous and help soil dry faster. Plastic pots retain moisture, so be extra careful with watering. If you love a decorative pot, use it as a cachepot and remove the inner pot for watering.
Consider using a pot that is only slightly larger than the root ball. Excess soil holds more moisture, which encourages fungal growth.
Use Clean Tools And Soil
When repotting, always use fresh, sterile potting mix. Do not reuse old soil from other plants. Clean your tools with rubbing alcohol between uses. This prevents spreading spores from one plant to another.
If you make your own potting mix, sterilize it by baking it in the oven at 180°F for 30 minutes. Let it cool completely before using. This kills any spores present.
Monitor Humidity And Light
Keep humidity levels moderate. If your home is very humid, use a dehumidifier near your plants. Good air circulation helps. Place plants in bright, indirect light when possible. Fungi prefer dark, damp conditions.
Rotate your plants occasionally so all sides get light. This keeps the soil surface from staying wet in shaded spots.
Common Mistakes When Dealing With Mushrooms
Many people make these errors when trying to remove mushrooms. Avoid them to save time and effort.
- Using chemical fungicides indoors. These can harm your plant and your family. Stick to natural methods.
- Overwatering after removal. You might think the plant needs water, but it likely does not. Let the soil dry.
- Ignoring the root cause. Removing mushrooms without changing watering habits will not work. They will come back.
- Panicking and throwing away the plant. Mushrooms are rarely harmful to the plant itself. Just fix the conditions.
- Adding more organic matter like compost. This feeds the fungi. Use mineral-based amendments like perlite instead.
Are Mushrooms Harmful To Houseplants?
In most cases, no. The mushrooms themselves do not attack the plant. They are just breaking down organic matter. However, the conditions that cause mushrooms—wet soil—can lead to root rot. Root rot is a serious problem that can kill your plant.
If you see mushrooms, check for signs of root rot. Yellowing leaves, wilting, or a foul smell from the soil are red flags. If present, you need to repot and trim away rotten roots. Otherwise, just follow the steps above.
Some mushrooms are toxic if ingested by pets or children. The yellow houseplant mushroom is mildly toxic. Keep plants out of reach if you have curious pets or toddlers. Remove mushrooms promptly to reduce risk.
Frequently Asked Questions
Can Mushrooms In Houseplants Spread To Other Plants?
Yes, spores can travel through the air or on your hands. If you have multiple plants, isolate the affected one until the mushrooms are gone. Clean your hands after touching the soil. Spores can land on other pots and start growing if conditions are right.
Should I Use Bleach To Kill Mushrooms In Soil?
No, bleach will kill your plant. It is too harsh for houseplant soil. Stick to hydrogen peroxide or cinnamon. These are safe and effective. Bleach also kills beneficial soil microbes that your plant needs.
How Long Does It Take To Get Rid Of Mushrooms?
It depends on the severity. With manual removal and drying, you may see results in a week. If you repot, mushrooms should stop within a few days. Be patient and consistent with your care routine. Spores can linger for months.
Can I Eat Mushrooms Growing In My Houseplant?
No, do not eat them. They are not cultivated for consumption and may be toxic. The yellow houseplant mushroom causes stomach upset. Even if they look like edible varieties, they are not safe. Just remove and discard them.
Why Do Mushrooms Keep Coming Back After I Remove Them?
This means the underlying conditions have not changed. The soil is still too wet, or drainage is poor. You may also have a large fungal network in the soil. Repotting with sterile soil is the most reliable solution if they keep returning.
Final Thoughts On Mushroom Removal
Mushrooms in houseplants are a sign, not a disaster. They tell you to adjust your watering and drainage. By following the steps in this guide on how to get rid of mushrooms in houseplants, you can restore healthy soil conditions. Your plant will thank you with better growth.
Remember to be patient. It may take a few weeks to fully eliminate the mushrooms. Stick with the prevention habits, and they will not come back. Your houseplants will thrive in a drier, cleaner environment.
If you have persistent issues, consider switching to a different potting mix. Some mixes are specifically formulated to resist fungal growth. Look for ones labeled “sterile” or “indoor potting mix.” Avoid garden soil or compost-heavy blends.
With a little effort, you can enjoy beautiful, mushroom-free houseplants. The key is consistency. Water less, let the soil breathe, and remove any mushrooms as soon as you see them. Your plants will be healthier, and your home will look cleaner.
Now you have all the tools you need. Go ahead and check your plants. If you see any mushrooms, you know exactly what to do. Happy growing!