Fungus in Potting Soil: Harmless but Manageable

White/Yellow Spheres in Soil = Fungal Colonies

Common in organic-rich soils. Not harmful to plants—indicates active decomposition. Can bother mold-allergic people.

Management

1. Scrape off surface mold & loose soil.
2. Let soil dry more between waterings.
3. Move to brighter, warmer spot.
4. Use peat-based soilless mix for repotting.
5. Severe cases: systemic fungicide drench.

Source is often contaminated potting soil. Avoid garden soil or cheap mixes with uncomposted bark.