Plant guide:ð Lavender
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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
- 1Various fungal pathogens favoured by high humidity combined with poor air circulation
- 2Overhead watering leaving foliage wet for extended periods
- 3Overcrowded planting restricting airflow between plants
Solution Steps
- 1Remove and destroy affected foliage
- 2Improve air circulation by spacing plants adequately and pruning to open up the centre
- 3Water at the base rather than overhead
- 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.



