We wondered about one such viral remedy: Can you really get rid of fungus gnats with cinnamon?

We found out what the experts had to say about this too-good-to-be-true houseplant hack.

Meet the Expert

Justin Hancock is a horticultural professional at Costa Farms.

tropical houseplant in clay pot with yellow sticky trap that has a few fungus gnats stuck to it

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He has 25 years of experience working for plant nurseries and writing for garden publications.

Where Do Fungus Gnats Come From?

Once established, they multiply quickly and can spread throughout your houseplant collection.

Gnats on sticky trap

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Their larvae can feed on roots, harming plant health and stunting growth in severe cases.

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Does Cinnamon Keep Fungus Gnats Away?

fungus gnats on sticky trap

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Nobut the idea that cinnamon could provide a natural method forcontrolling fungus gnatshas some basis in reality.

Can Cinnamon Prevent Mold Growth on Soil?

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Which Fungus Gnat Treatments Actually Work?

There’s no scientific proof that coffee grounds get rid of fungus gnats.

Some types of cinnamon contain essential oils that can prevent fungal growth.

However, mold on the soil is typically harmless or even beneficial.