How To Get Rid Of Mushrooms In Houseplants

Seeing mushrooms sprout in your houseplant can be a suprise. If you’re wondering how to get rid of mushrooms in houseplants, the good news is it’s usually simple. Those little fungi aren’t directly harming your plant, but they are a signal. They tell you that the soil environment is very damp and organic, which could lead to real problems like root rot. Let’s look at why they appear and the effective ways to remove them and prevent their return.

The process is straightforward. It involves removing the visible mushrooms, adjusting your care habits, and sometimes changing the soil. Consistency is key. A one-time fix won’t help if the conditions stay the same.

Why Are Mushrooms Growing in My Pot?

Mushrooms are the fruit of a fungus. The main organism is a vast network of threads called mycelium living in the soil. They appear when three things combine:

Spores: Fungus spores are everywhere, floating in the air. They can come in with potting mix, through an open window, or on a new plant.
Moisture: Consistently wet soil is the biggest invitation for fungi to thrive.
Organic Material: Many commercial potting mixes contain composted bark or peat. Some even have slow-release fertilizer pellets that fungi love to eat.

When these elements meet, mushrooms can pop up overnight. It’s a sign of healthy microbial life in a way, but for indoor plants, it’s often too much of a good thing.

Immediate Steps to Remove Existing Mushrooms

First, deal with the mushrooms you can see. It’s important to do this carefully to avoid spreading spores.

Put on Gloves: Some houseplant mushrooms could be toxic. It’s best to avoid direct skin contact.
Twist and Pull: Gently twist the mushroom at its base and pull it out, trying to remove as much of the stem as possible from the soil.
Bag and Trash: Immediately place the mushrooms in a sealed plastic bag and throw it in your outdoor trash. Don’t compost them, as this can spread spores.
Check the Surface: Look for any tiny mushrooms or white, fuzzy mycelium on the soil surface. Scoop out the top inch of soil if you see a lot of this growth and replace it with fresh, dry potting mix.

Fixing the Root Cause: Your Watering Routine

Overwatering is the most common cause. Fixing this is your most effective long-term solution.

The Finger Test is Your Best Friend: Before you water, stick your finger about 2 inches into the soil. If it feels damp or cool, wait. Only water when the top couple inches are completely dry.
Water Deeply, But Less Often: When you do water, give the plant a thorough drink until water runs out the drainage holes. Then, let it drain completely and never let the pot sit in a saucer of standing water.
Consider the Pot: Terracotta pots are great for moisture-loving plants because they breathe and allow soil to dry faster. Plastic pots retain moisture much longer.

Adjusting you’re watering habits might be all it takes to stop mushrooms from coming back.

Improving Soil and Drainage

If watering changes aren’t enough, the soil itself might need an update. Old, decomposed soil holds too much water.

Repot the Plant: For a severe, recurring problem, repotting is the best option. Gently remove the plant from its current pot.
Shake Off Old Soil: Carefully remove as much of the old, fungus-friendly soil from the roots as you can. You can rinse the roots lightly with water.
Use a Fresh, Well-Draining Mix: Choose a quality indoor potting soil. For extra drainage, you can mix in some perlite or orchid bark. This creates air pockets and helps water flow through.
Ensure Drainage Holes: Always use a pot with at least one hole in the bottom. This is non-negotiable for healthy roots.

Natural Fungus Treatments

For a less invasive approach, you can try natural anti-fungal remedies on the soil surface. These are best for mild cases.

Cinnamon: A light dusting of ground cinnamon on the soil surface is a mild natural fungicide. It can help inhibit surface mold and fungus growth.
Apple Cider Vinegar Solution: Mix one tablespoon of apple cider vinegar with a quart of water. Use this to water your plant once. The slight acidity can change the soil environment to be less friendly to fungi. Don’t use it too often, as it could affect soil pH.
Baking Soda: A very weak solution (½ teaspoon per gallon of water) can also create an unfriendly environment for fungus. Again, use sparingly.

Preventing Future Mushroom Growth

Once the situation is under control, keep it that way with a few smart habits.

Increase Airflow: Good air circulation helps soil dry evenly. A gentle fan in the room or simply not crowding plants too close together can make a big difference.
Let in Light: Mushrooms prefer damp, dark places. Moving your plant to a brighter spot (with appropriate light for its needs) will help the soil surface stay drier.
Keep It Clean: Regularly remove dead leaves or debris from the soil surface. This organic matter is food for fungi.
Water in the Morning: This gives excess moisture on the soil and leaves a chance to evaporate during the day, rather than sitting all night.

When to Worry About Mold or Fungus Gnats

Mushrooms are often accompanied by other moisture-related issues.

White Mold on Soil

This fluffy white substance is another type of saprophytic fungus, similar to mushrooms. The treatment is identical: scrape it off, let the soil dry out more between waterings, and improve airflow. A sprinkle of cinnamon can help here too.

Fungus Gnats

These tiny, annoying flies love the same moist, rich soil. Their larvae feed on fungus and roots. To combat them, let the soil dry out more. You can also use yellow sticky traps to catch adults and consider a treatment like mosquito dunk tea for the larvae if the infestation is bad.

FAQ: Common Questions About Houseplant Mushrooms

Are the mushrooms poisonous to me or my pet?
They could be. Many common houseplant mushrooms are mildly toxic. It’s safest to assume they are and remove them immediately, keeping pets and children away.

Will the mushrooms damage or kill my plant?
The mushrooms themselves won’t attack your plant. However, the conditions that cause them—constant wetness—will lead to root rot, which can kill your plant.

Can I just cut the mushrooms off instead of pulling them?
Pulling is better. Cutting leaves the base in the soil, which can decay. Pulling removes more of the fungal structure. But if the mushroom breaks, don’t worry; just remove what you can.

Do I always need to repot to get rid of mushrooms?
No, not always. Often, simply removing the mushrooms and correcting your watering is sufficent. Repot if the problem keeps coming back despite drier soil.

What if I see mushrooms but my soil feels dry?
The soil might be dry on top but still very damp deeper down where the roots are. Always do the finger test deep into the pot. Also, the fungus might be feeding on old, decomposed soil or roots at the bottom of the pot.

Finding mushrooms in your houseplant is a common hiccup, not a disaster. It’s your plant’s way of sending a message about its soil. By removing the fungi, adjusting your watering, and ensuring good drainage, you can easily solve the problem. Your plant will be healthier for it, and you’ll gain more confidence in your plant care skills. Remember, the goal is to create an environment where your plant thrives, but the fungus doesn’t.