This white deposit is called mycelium. It is a naturally occurring fungus whose job it is to breakdown organic material. You'll find it on bits of wood buried in the soil, on rotting straw or woody bits in compost heaps, on leafmould and manure in the soil - the list is almost endless.
Why does my garden soil have white mold?
White mold is caused by the fungus Sclerotinia sclerotiorum. ... Sclerotia allow the fungus to survive in the soil and plant debris for 5 or more years. In spring and summer when temperatures are cool (51 to 68 F) and the soil is moist, sclerotia produce a few tiny mushrooms.
How do I get rid of white mold in my soil?
- Repot the plant in sterile potting soil.
- Dry out your potting soil in direct sunlight.
- Remove mold from the plant and spray with a fungicide.
- Add a natural anti-fungal to your houseplant soil.
- Repot new plants immediately into sterile soil.
Why is the top layer of my soil White?
A white mold growing over the surface of houseplant potting soil is usually a harmless saprophytic fungus. ... Overwatering the plant, poor drainage, and old or contaminated potting soil encourage saprophytic fungus, which feeds on the decaying organic matter in soggy soil.28 nov 2018