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Lately, next to my flower in its pot, mushroom is growing. enter image description here

Why? What should I do to stop the mushroom from growing?

It was written on Google that the fungus causes the death of this flower

Stephie
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Nadia
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    Why is this a problem for you? I postulate that this is just part of the microbiome (and your soils microbiome is important to growing plants). Thinking a little differently, maybe you should water the plant less - most plants want to dry out between waters, and if I understand correctly, most mushrooms need a constant moist environment. – davidgo Mar 18 '24 at 09:26
  • A side concern is if you have any pets who might eat a random plant, expecially one that smells different. – Criggie Mar 19 '24 at 02:45
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    @davidgo it's possible a problem because with that thing growing, there might not be mushroom left for the plant. – Bob Tway Mar 19 '24 at 14:14

3 Answers3

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Nothing to worry about and you can't stop the mushroom/s from growing, though you can just remove it yourself. Mushrooms are just the fruiting bodies of mycelium present in the soil - you may find they recur at the same time next year. As for 'killing your flower', if that's what Mr Google said, then he cannot be trusted on this subject - it won't kill your plant, although we don't actually know what plant you're growing. The majority of mushrooms feed off dead material, not live plants, they are part of nature's recycling/disposal system.

Bamboo
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    It looks like an emerging parasol mushroom, Parasola plicatilis maybe. I see them where I spread my garden compost before a good rain. – MackM Mar 18 '24 at 15:25
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    There may well be a fungus of some sort that's a serious problem for this plant - so Google may not be making it up (though it easily could be). This just isn't that fungus. – Chris H Mar 18 '24 at 15:27
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    The one fungus you dom't want is honey fungus, which has honey coloured toadstools/mushrooms and attacks live plants - but only woody ones. This is not it. – Bamboo Mar 18 '24 at 18:50
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    +1 It's actually the case that fungi are essential to plants in a really fundamental way. Fungi created soil from rocks and allowed plants to move onto land. Plants work symbiotically with fungus to extract nutrients from the soil as well. – JimmyJames Mar 18 '24 at 20:51
  • The plant looks like a snake plant - Dracaena trifasciata. – CJ Dennis Mar 20 '24 at 04:58
  • Yea, I noticed that yesterday, after magnifying the image... It won't be affected by the mushrooms though. – Bamboo Mar 20 '24 at 10:47
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The mushroom itself is almost certainly not an issue (other than possibly aesthetically). Almost all species of mushroom are saprotrophic, which means they feed on decaying organic matter (and are a key part of the process of decomposition). Very few species are active parasites of live plants, and a vast majority of those that are only parasitize woody plants, and that would be about the only way it’s likely to kill your houseplant.

That said, the presence of mushrooms in the pot is possibly a symptom of some other issue that may kill the plant. The most likely possibility is that you’re watering it too much. Most mushrooms require a significantly higher level of moisture in the soil than most plants do, so they only tend to show up in over-watered pots.

Austin Hemmelgarn
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To confirm that, as other answers have suggested, this specific mushroom is harmless - this mushroom looks to be a member of the family Psathyrellaceae, perhaps even Coprinopsis atramentaria, the Inky Cap. Watch over the next few days to see if the cap starts to dissolve into a black, inky liquid. These are among the saprotrophic fungi mentioned by Austin Hemmelgarn, meaning they will not parasitize houseplants. Neither will they form symbioses with houseplants, for that matter. What they will do is help make nutrients in the soil available for the plant to use.

(obviously, do not eat any mushroom based on identification by a stranger online)

Eonema
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