White Spots on African Violet Flowers: Variegation, Cold Water, or Pests?

Dorothy noticed white spots on her African violet's flower petals—non-powdery, on an otherwise healthy, constantly blooming plant in a west window. Several possibilities exist.

Natural Variegation

Some African violet varieties naturally have spotted or multicolored flowers. If the plant is a variegated type, the spots are a genetic feature, not a problem.

Cold Water Spotting

Watering with water cooler than the plant's tissue temperature can cause white spots on blooms and leaves. This is cosmetic and harmless. Switch to lukewarm water.

When to Worry

If spots are powdery, it could be powdery mildew. If they move or appear insect-like, check for pests. A photo helps confirm diagnosis, but non-powdery spots on healthy plants are usually benign.