Overwatering hydrangeas impacts leaf growth in a range of ways. Root rot caused by overwatering produces yellowed leaves rather than dark, rich green leaves. An overwatered plant may shed leaves prematurely, or there may appear to be an overgrowth of green foliage due to stunted flower growth.
Why are my hydrangea leaves curled?
There are a few reasons that hydrangea leaves can curl like this – you can think about which one is more likely for your plant, but fungus isn’t one of them so you can stop using any fungicide. 1. Most common cause is a sucking insect such as aphids or lacebug feeding under the leaves when the foliage is young.
How often should I water a hydrangea?
Hydrangea Care Tips
Water at a rate of 1 inch per week throughout the growing season. Deeply water 3 times a week to encourage root growth. Bigleaf and smooth hydrangeas require more water, but all varieties benefit from consistent moisture.
Why are my hydrangea leaves curling and turning brown?
Potted hydrangea leaves turn brown most often because they are planted in pots that are too small and dry out too quickly. Hydrangea have extensive root systems and a high demand for moisture in the soil. If the soil dries out then the leaves wilt or curl up and turn brown as a sign of stress.