What are yellow mushrooms?

In this brief guide, we will answer the query, “What are yellow mushrooms?” We will also discuss the characteristics of yellow mushrooms, whether they are poisonous, and the reason they grow around your plants. Moreover, we will also talk about the control measures for these mushrooms.

What are yellow mushrooms?

They are simply yellow houseplant mushrooms. These mushrooms are also commonly known as flowerpot parasols or plant pot dapperlings, they are botanically classified as Leucocoprinus birnbaumii. They are a type of gilled mushroom belonging to the Agaricaceae family. 

In addition to occasionally appearing in greenhouses and flowerpots in temperate regions, yellow houseplant mushrooms are widespread in the tropics and subtropics. It is very easy to identify the yellow mushroom indoors. If you spot any small yellow-colored mushrooms growing next to your indoor plants, they are most likely to be Leucocoprinus birnbaumii.

What are the characteristics of yellow mushrooms?

  • The entire plant is pale to bright yellow throughout, including the inside fresh.
  • The head of the mushroom is one to two inches tall with an oval beginning. It develops a bell shape as it ages.
  • Although the mushroom has gills, the gills are not attached to the stem.
  • A ring surrounds the stipe (stalk), which typically vanishes as the fungi get older. The ring is the last piece of a veil that covered the gills as they were growing.
  • The stipe of the fungi is only a few inches long.

Are yellow mushrooms poisonous?

Yes, yellow mushrooms are poisonous to humans and animals and should not be eaten under any circumstances. However, that is not the case in terms of plants. The growth of these mushrooms is actually a sign that your soil is healthy.

These yellow mushrooms which you may often find growing nearby your plants are actually good for your plants. Unlike other fungi, these mushrooms aid in the exchange of nutrients between plants or the restoration of nutrients to the soil.

They add nutrients to your soil and are not poisonous as long as you don’t consume them. You may have to be careful if you have children or pet animals around as they may unknowingly consume these mushrooms.

Why are yellow mushrooms growing in my plants?

The yellow mushrooms may appear in your potted plants due to a variety of reasons including contaminated soil or in the form of other contaminations. Since mushroom spores are invisible, it is impossible to detect them while processing potting soil, but once present, they spread quickly and easily when the soil is moved. 

Let us discuss some of the reasons you may have yellow mushrooms growing in your plants:

  • Your soil already had spores in it before you potted the plants in them.
  • These mushroom spores may have been either carried in by the wind or blown in from a nearby plant.
  • Some of the spores may have already been on it when you purchased your plant.
  • Since rich nutrient-enriched soil is ideal for mushrooms, yellow mushrooms may grow if the soil is rich.
  • Yellow mushroom also thrives well in wet soil. So make sure your plants aren’t getting too much water or too much humidity if you want to avoid the growth of these mushrooms. Under such wet conditions, the plant can also display other overwatering symptoms, such as limp leaves, poor condition, or root rot.

What can I do if yellow mushrooms are growing on my plants?

If you have yellow mushrooms growing in your yard or potted plants, you can either keep them or control them by following the steps below:

  • The simplest, yet most extreme, course of action is to completely remove the pot, the plant along with the soil.
  • You can also alter the soil, but it may be difficult and dangerous. The plant may enter shock if the soil around its roots is completely removed. Additionally, there is no assurance that you will get rid of all the spores.
  • Taking out the mushrooms as they appear would be a more gradual, ongoing strategy that would completely eliminate any chance of failure.
  • You might try altering the plant’s environment to provide it with cooler temperatures, lower humidity levels, dryer soil, and more airflow. This might make mushrooms less abundant. However, this may also affect the growth of your plants.

For a detailed guideline on how to remove these yellow mushrooms, please click the link here.


In this brief guide, we have answered the query, “What are yellow mushrooms?” We have also discussed the characteristics of yellow mushrooms, whether they are poisonous, and the reason they grow around your plants. Moreover, we have also talked about the control measures for these mushrooms.



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