Why does your Hydrangea serrata have drooping leaves? Diagnose the cause and fix it with our step-by-step guide.
Hydrangea serrata is much more sensitive to dry conditions than the common Macrophylla species. When soil moisture drops, the plant rapidly loses turgor pressure in its large leaves to prevent transpiration loss.
While they love moisture, excessive waterlogging in heavy soils deprives roots of oxygen. This leads to fungal decay which prevents the plant from transporting water upward, causing leaves to wilt despite wet soil.
Mountain Hydrangeas thrive in dappled shade; excessive direct afternoon sun can cause leaf temperature to rise too high, leading to wilting as the plant attempts to cool itself through transpiration.
Sudden drops in temperature or frost can damage the vascular tissue of the serrata species, disrupting the upward flow of nutrients and water.
Your plant might also be experiencing one of these issues:
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