Common Symptoms

Mold on the soil surface

A white or yellowish, cottony or powdery deposit develops on the surface of your plant’s potting mix.

Mold on the soil surface

Signs to check

  • A fuzzy or threadlike white to pale yellow growth forms a thin layer.
  • It stays on the potting mix surface without touching the plant's base.
  • It compresses or lifts off easily with a tool, revealing moist soil beneath.
  • Its soft, organic texture differs from hard, crystalline salt deposits.

Common causes

  1. Fungus gnats · Tiny black insects flying around the pot and potting mix.
  2. Overwatering · Soil stays waterlogged, depriving roots of oxygen and causing rot.
  3. Springtails · Tiny white insects that jump on the surface of moist potting mix.