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Mushrooms In Your Lawn

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Mushrooms in your lawn Last Updated: 18/07/2023

Mushrooms and toadstools occur naturally and can appear on any area of a lawn under certain weather and ground conditions. They are a natural part of the environment and often indicate a healthy and fertile lawn and soil. Although they only live for a short period and are generally not problematic, toadstools can emerge in established turf due to specific soil environments. Common causes include the presence of organic debris beneath the lawn or the presence of dormant spores awaiting suitable conditions.

The type usually seen on lawns are harmless, however, humans or animals shouldn’t eat them as some are poisonous.

The fungi that produce toadstools can recycle dead plant material and will grow very fine threads called mycelium. Upon close inspection, you can sometimes see mycelium on the leaves of turf. It looks like cotton and disappear as it dries.

When does toadstools or mushrooms develop?

Toadstools or mushrooms most commonly appear in autumn when the weather is warm and humid, and will usually disappear within a few weeks or when weather conditions change.

To identify whether mushrooms and toadstools are going to appear in a lawn, a knife can be used to check under the buried debris for infected areas.













How to treat mushrooms and toadstools?

To reduce the chances of them appearing, lawns should be scarified regularly. Scarification removes thatch and debris underneath, which are the main causes of mushroom and toadstool growth. They should also be aerated to oxygenate the soil profile and drain water from the surface.

Toadstools can be removed by hand or by brushing them off. Alternatively, they can be cut with a lawn mower with a grass box attached to collect them in. Rotary mowers are usually better for this task.

If mushrooms appear in a circle or arc shape as in the picture below, this is indicative of Fairy Ring, a common turfgrass disease. Ask your local Lawn Master outlet for help with identification and how to manage.


For Further Information

Learn more about scarification.

Learn more about fairy rings.

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