One of the most common diseases of parsley is powdery mildew - especially if the plants are grown outdoors. The fungal spores are already present in the soil and are encouraged by too much moisture.
How can you prevent powdery mildew on parsley?
To avoid powdery mildew on parsley, provide well-drained soil, water only when the soil is dry, and avoid wetness on the leaves. Ensure a planting distance of 10 cm and, if necessary, plant chives as a natural barrier.
Powdery or downy mildew
If there is a whitish coating on the leaves, it is usually powdery mildew.
- Velvety covering
- White or grayish
- Leaf top: Powdery mildew
- Underside of leaf: Downy mildew
Causes of mildew
The fungal spores are already in the soil and spread if the plant is too moist.
Prevention of mildew
Provide permeable soil where no waterlogging can form.
Do not water the plants too often, but only when the soil surface is dry and do not wet the leaves.
Prick the parsley at the ideal planting distance of ten centimeters so that the leaves can dry well after rain or watering.
Tips & Tricks
Some gardeners swear by planting chives among the parsley. This measure is intended to effectively curb the occurrence of mildew.