Care Tips

White Spots on Leaves: What They Are and How to Treat Them

Identify and treat white spots on houseplant leaves. Common causes include powdery mildew, pests, and hard water stains.

8/26/2025
1 min read
By Petalum
#white spots on leaves#plant leaves white powder#powdery mildew on plants#treat plant leaf spots

White Spots on Leaves: What They Are and How to Treat Them

White spots on leaves can signal different issues, from pests to fungal infections. Here’s how to identify and fix them.

Common Causes

  • Powdery mildew – White, powdery coating.
  • Hard water stains – Spots left after misting or watering.
  • Mealybugs – Cotton-like clusters.
  • Spider mites – Small white speckles.

Treatments

  • Wipe leaves with a damp cloth.
  • Use neem oil or insecticidal soap for pests.
  • Improve air circulation for fungal issues.
  • Use filtered water to avoid hard water stains.

🌿 Petalum lets you track plant health and note recurring leaf issues for faster solutions.