What does an overwatered lilac look like?
Too much water can result in wilted, pale, or yellowing leaves. Established shrubs can tolerate short periods of drought like conditions without damage. Longer periods of dry conditions can cause the leaves and the stems of the lilac to wilt.
What causes lilac leaves to curl and turn brown?
It is caused by two fungi: Verticillium dahliae and Verticillium albo-atrum. There is no cure for a plant with this fungal infection. Individual branches turn brown and die suddenly due to the fungi blocking the vascular system of the branch, cutting off water and nutrient movement.
How do you fix curling leaves?
CAUSE: Heat stress causes rapid evaporation, so plants curl up to conserve moisture. Plants too close to high-intensity lights are prone to heat stress, but it can be a problem in any room where temperatures are persistently above 80 degrees F. QUICK FIX: Set up fans to blow out hot air and bring in cooler fresh air.