Growing basil can be challenging.
For example, gardeners and summer residents may encounter such a phenomenon as blackening of the leaves and stems of a plant.
Let's look into the reasons why this might happen.
Why do basil leaves turn black?
One of the most common causes of blackening of basil leaves is the plant being affected by various diseases. For example, if the blackness affects the basil stem, then you are dealing with fusarium.
If the leaves become covered with a dark coating and wither, the basil may be affected by downy mildew.
Also, the plant's leaves may turn black because the plant is too cold. Therefore, if frosts are typical for your region, it is better to choose a more frost-resistant variety for cultivation.
Incorrect watering also causes the plant to turn black. Frequent watering is detrimental to basil, as it leads to stagnation of water and the development of the diseases listed above.
Author: Irina Tint
