White Shiny Mold Growing on Dirt

Identification

• Saprophytic mold is caused by fungi that feed on the high organic matter found in potting soil and dirt. Fungi cannot produce its own food, so it must use the nutrients found in soil in order to survive and reproduce.

Effects

• Saprophytic fungus often appears white and shiny on soil, resembling melted marshmallows. There is no odor associated with this type of mold, and it does not cause harm to plants in close proximity. Although it is harmless, saprophytic mold is often unsightly and considered a nuisance fungi.

Control

• Since saprophytic mold is harmless, chemical control is not recommended. This type of mold will remain until it completes its life cycle. Once the cycle is complete, saprophytic mold on soil will disappear on its own with no action on your part.

Considerations

• If you do want to remove the saprophytic mold on the soil of your indoor plant or in your garden, you can rake or scrape the mold from the soil and dispose of it.