From the soil factor there are several possibilities: potting soil contains part of the organic matter is not fully rotted through, water fermentation mushroom; this nutrient soil contains raw materials used in the production of mushrooms after the disposal of the material formulated; often watering organic fertilizer, the soil has not fully rotted through the organic particles of the fungus. Mushroom spores spread in the air, meet the above environment is easy to develop into mycelium, and then give birth to mushrooms.

Mycelium grows in large quantities in the soil and consumes a lot of oxygen, which affects the respiration of the plant root system and easily causes root rot. If you don't like it, you can pull it out, because flowers in general are fleshy roots, more drought-resistant, as long as the potting soil where the flowers are cultivated stays dry, the mycelium will die soon.