Getting Rid Of Mushrooms Growing In Houseplant Soil (2024)

Most of the time when people are growing houseplants, they are doing so to bring some of the outdoors indoors. But normally people want green plants, not little mushrooms. Mushrooms growing in houseplant soil is a common problem.

What Causes Mushrooms Growing in Houseplant Soil?

Mushrooms growing in houseplants are caused by a fungus. The mushrooms are the fruit of that fungus. One of the most common mushrooms found growing in houseplants is the Leucocoprinus birnbaumii. This is a light yellow mushroom with either a balled or flat cap depending on how mature they are.

The spores that are the cause of mushrooms growing in houseplant soil is normally introduced by contaminated soilless mix. But occasionally, they can be introduced through other means such as airborne movement or spores brushing off clothing.

Most frequently, mushrooms will appear in houseplants in the summer when conditions are right for them. Unlike lawn mushrooms (which prefer cool, moist conditions), mushrooms in houseplants prefer that air be warm, moist and humid.

Getting Rid of Mushrooms in Houseplants

Unfortunately, this is no easy task. Once soil becomes infected, it is very difficult to remove the spores and fungus that causes the mushrooms, but there are a few things you can try:

  • Remove the caps - By removing the caps as soon as possible, you are removing the source of the spores which result in mushrooms growing in houseplant soil. This will also help keep mushrooms out of your other houseplants.
  • Scrape the soil - Scraping the top 2 inches (5 cm.) of soil off the houseplants pot and replacing it may help, but the fungus may regrow and the mushrooms will return.
  • Change the soil - Changing the soilmay possibly help with getting rid of mushrooms. One of the problems is that it is not healthy to remove all of the soil from a plant's roots (through washing or rinsing) and the fungus may still be present and regrow from the soil left on the roots of the houseplant.
  • Drench the soil with fungicide - Drenching the houseplant's soil with fungicide may help with eliminating mushrooms in houseplants, but again, if not all of the fungus is killed, the mushrooms will return. You may need to try this treatment several times before the fungus is killed completely.
  • Change the conditions - If the air is less humid, the soil less moist or the temperature less warm, this will reduce the number of mushrooms that appear. Unfortunately, the conditions that are ideal for mushrooms are also ideal for most houseplants, so by changing the conditions you may harm the houseplant itself.

Getting rid of mushrooms in houseplants is hard, but mushrooms growing in houseplant soil won't harm your plant nor will they harm you unless you eat them. You may want to consider just letting them grow. If you want to get whimsical, you could add a few animal or fairy figurines near them and create a little forest garden right inside your house.

Most of the time when people are growing houseplants, they are doing so to bring some of the outdoors indoors. But normally people want green plants, not little mushrooms. Mushrooms growing in houseplant soil is a common problem.

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What Causes Mushrooms Growing in Houseplant Soil?

Mushrooms growing in houseplants are caused by a fungus. The mushrooms are the fruit of that fungus. One of the most common mushrooms found growing in houseplants is the Leucocoprinus birnbaumii. This is a light yellow mushroom with either a balled or flat cap depending on how mature they are.

The spores that are the cause of mushrooms growing in houseplant soil is normally introduced by contaminated soilless mix. But occasionally, they can be introduced through other means such as airborne movement or spores brushing off clothing.

Most frequently, mushrooms will appear in houseplants in the summer when conditions are right for them. Unlike lawn mushrooms (which prefer cool, moist conditions), mushrooms in houseplants prefer that air be warm, moist and humid.

Getting Rid of Mushrooms in Houseplants

Unfortunately, this is no easy task. Once soil becomes infected, it is very difficult to remove the spores and fungus that causes the mushrooms, but there are a few things you can try:

  • Remove the caps - By removing the caps as soon as possible, you are removing the source of the spores which result in mushrooms growing in houseplant soil. This will also help keep mushrooms out of your other houseplants.
  • Scrape the soil - Scraping the top 2 inches (5 cm.) of soil off the houseplants pot and replacing it may help, but the fungus may regrow and the mushrooms will return.
  • Change the soil - Changing the soil may possibly help with getting rid of mushrooms. One of the problems is that it's not healthy to remove all of the soil from a plant's roots (through washing or rinsing), and the fungus may still be present and regrow from the soil left on the roots of the houseplant.
  • Drench the soil with fungicide - Drenching the houseplant's soil with fungicide may help with eliminating mushrooms in houseplants, but again, if not all of the fungus is killed, the mushrooms will return. You may need to try this treatment several times before the fungus is killed completely.
  • Change the conditions - If the air is less humid, the soil less moist or the temperature less warm, this will reduce the number of mushrooms that appear. Unfortunately, the conditions that are ideal for mushrooms are also ideal for most houseplants, so by changing the conditions you may harm the houseplant itself.

Getting rid of mushrooms in houseplants is hard, but mushrooms growing in houseplant soil won't harm your plant nor will they harm you unless you eat them. You may want to consider just letting them grow. If you want to get whimsical, you could add a few animal or fairy figurines near them and create a little forest garden right inside your house.

Note: Any recommendations pertaining to the use of chemicals are for informational purposes only. Chemical control should only be used as a last resort, as organic approaches are safer and more environmentally friendly.

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Getting Rid Of Mushrooms Growing In Houseplant Soil (2024)

FAQs

Getting Rid Of Mushrooms Growing In Houseplant Soil? ›

Drench the soil with fungicide - Drenching the houseplant's soil with fungicide may help with eliminating mushrooms in houseplants, but again, if not all of the fungus is killed, the mushrooms will return.

How to get rid of mushrooms in houseplant soil? ›

The easiest thing to try is to scrape off the mushrooms and the top inch of soil. Wear gloves so the spores don't cling to your hands. Put the scraped up soil immediately in an outside bin. Put a fresh layer of soil on the plant.

Why is my indoor plant soil growing mushrooms? ›

Mushrooms can grow in your plant when the potting mix has spores or when they are introduced through the air. The main reason for mushrooms is overwatering your plant and lack of airflow in your space. Mushrooms thrive in warm and humid environments.

What kills mushrooms but not plants? ›

Use a natural fungicide such as vinegar – Dilute 4 parts water to 1 part vinegar. Spray directly onto the mushrooms. The acetic acid in vinegar will kill the mushrooms.

What kills mushroom spores in the house? ›

It's simple—just grab some 3% hydrogen peroxide from the store. Spray this mix onto problem areas where mushrooms love to pop up. Watch as it breaks down into water and oxygen, creating an unfriendly environment for those spores trying to take over.

Can I use potting soil that has mushrooms? ›

When you see some mushrooms, you definitely don't need to worry. Fungi eat decaying material in the soil (like dead leaves) so as long as your plant is healthy, the mushrooms will leave your plant alone. You can technically leave them in the soil, and they are non-toxic so long as the mushrooms haven't been eaten.

How to remove mycelium from soil? ›

Washing: This method involves washing the soil mycelium mixture with water or a solution to remove the soil and leave the mycelium behind. The mycelium can be collected by using a filter or centrifugation. Enzymatic digestion: This method involves using enzymes to break down the soil and release the mycelium.

Do mushrooms indicate healthy soil? ›

“If you see mushrooms, it's a sign that your soil has a healthy soil food web,” Midgley said. Along with other microorganisms, fungi consume all kinds of organic matter — the remains of dead plants, animals and other living things — and release useful nutrients into the soil to be absorbed by plant roots.

How to get rid of fungus growing in a house? ›

Cleaning vinegar has 6% acetic acid, which can effectively kill over 80% of mould species. You need to use it undiluted to get the best results and prevent the regrowth of mould and fungus. Spray the solution directly on the mould and fungi, letting it dwell for at least one hour.

Why is fungus brown mushroom growing in my houseplant? ›

They usually sprout when the soil is damp. If you're watering your plants frequently or if there's inadequate drainage, it might create the perfect setting for mushrooms to grow. Another factor is the presence of organic matter. The soil in your pots might contain bits of leaves, bark, or other decomposing material.

What fertilizer removes mushrooms? ›

Digging out and replacing the affected soil will remove any decaying matter that the mushrooms feed on. Fertilize every month throughout the spring, summer and fall. The nitrogen in turf fertilizer, speeds up the decaying process of fungi food, leaving little time for new fruiting of mushrooms.

Does vinegar stop mushrooms from growing? ›

Tip. It's possible to use vinegar as another natural way to remove mushrooms, too. Use garden (horticulture) vinegar diluted with water in a spray bottle and spray the mushroom with precision. Leave the mushroom to die or you can dig, remove, and respray the spot where the mushroom came from for extra prevention.

Do mushrooms harm houseplants? ›

Probably not. "Actually, the presence of mushrooms can be beneficial because the fungus breaks down the organic matter in the potting medium, which releases nutrients that the plant can use," says Hanco*ck. It's a symbiotic relationship where everyone wins!

What stops mushroom growth? ›

Mushrooms thrive in damp, dark places, so one way to prevent them from growing is to make sure that your yard is well-lit and free of standing water. You can also try planting mushrooms' natural predators, such as slugs and snails, in your garden.

How to get rid of mushroom growing in the bathroom? ›

If you find mushrooms growing in your bathroom, you can remove them by carefully pulling them up from the roots. You may also consider cleaning the area with a bleach solution to discourage future growth.

Are mushrooms harmful to potted plants? ›

Mushrooms will not harm your container plants. Contrary to popular belief, they do not take nutrients away from the potting soil. In fact, they do the opposite! Mushrooms help compost the soil, turning organic wastes into useable compost for your container plants.

What mushrooms are growing in my potted plant? ›

Surprise! You've got mushrooms in your houseplants
  • Flowerpot parasols. One of the more common and colorful fungi that you may find in your potted plants is Leucocoprinus birnbaumii, or flowerpot parasols. ...
  • Little Brown Mushrooms. ...
  • Bird's Nest Fungus. ...
  • Dead Man's Fingers.
Oct 25, 2023

Are little brown mushrooms poisonous? ›

Little brown mushrooms are found in spring, summer and fall, in all habitats. They may grow on soil or wood and may appear in lawns, pastures or forests. Because they are so difficult to identify, they should be avoided. Many "LBMs" are harmless, but some are mildly poisonous or hallucinogenic, and a few are deadly.

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