Plant guide:💜 Lavender
Back to Plant Clinic
⚠ Moderate
ðŸĐš
Fungal

Fungal Leaf Spot on Lavender

Commonly affects: Lavandula angustifolia / L. x intermedia (Lavender)

Small, dark spots appear on foliage, sometimes with a grey or fuzzy centre, particularly in humid or overly wet conditions.

Potential Causes

  1. 1Various fungal pathogens favoured by high humidity combined with poor air circulation
  2. 2Overhead watering leaving foliage wet for extended periods
  3. 3Overcrowded planting restricting airflow between plants

Solution Steps

  1. 1Remove and destroy affected foliage
  2. 2Improve air circulation by spacing plants adequately and pruning to open up the centre
  3. 3Water at the base rather than overhead
  4. 4Apply a fungicide if the problem is spreading significantly

Prevention Tip

Good airflow and base-level watering are the two most effective preventive measures against the fungal leaf spots that occasionally affect lavender in humid climates.