Plant guide:ðŸŠī Succulent
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Fungal

Powdery Mildew on Succulent Leaves

Commonly affects: Various succulents (Crassulaceae, Aizoaceae, and others)

A white powdery coating develops on leaf surfaces, particularly in humid conditions with poor airflow.

Potential Causes

  1. 1Fungal spores favoured by humidity and still, poorly-ventilated conditions
  2. 2Overcrowded plantings restricting airflow
  3. 3Overhead watering keeping leaves damp

Solution Steps

  1. 1Remove heavily affected leaves
  2. 2Improve airflow around the plant
  3. 3Water at the base rather than overhead
  4. 4Apply a sulphur-based fungicide at first signs if the problem persists

Prevention Tip

Succulents generally prefer drier air than most houseplants — good airflow and base watering usually prevent powdery mildew from establishing.