The Q&A Archives: White Mold on Soil

Question: We live in Dayton, Ohio. We have had a lot of rain this year. Our potted geraniums mixed with ivy and other small ground cover is developing white mold on the top of the soil. We have done similiar plantings in previous years without a problem. The plants are outdoors and get a good amount of light. What can we spray or treat with?

Answer: White mold on the top of the soil is not a plant disease and requires no treatment. Such molds are simple non-pathogenic fungus which break down the organic matter in the soil or mulch and are actually beneficial to the plants, releasing nutrients from the soil. The rain has provided them with great conditions to get going.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by Paul2032 and is called "Coreopsis"