Mycorrhizal fungi help the roots uptake nutrients better.
I'm not sure how much of it has to do with breaking down soil components to increase nutrient availability, or with a symbiotic relationship between plant and fungus, but these highly specialized fungi ARE good for the plants.
I do not know if what you are seeing falls into this category.
stinkyattic Reviewed by stinkyattic on . GOT A SURPRISE TODAY I was checking my plants today. They are close to picking. I got a surprise upon close inspection I saw mushrooms starting to sprout in the one plant. They are little cute ones. I've been pretty good about watering, so no mold as best I can tell. What should i do? Pull the srooms or pick the plant and remove the plant pot. Rating: 5