Why does your Rhododendron ponticum have drooping leaves? Diagnose the cause and fix it with our step-by-step guide.
Oomycete pathogens like Phytophthora species attack the root system of R. ponticum, causing the plant to lose its ability to transport water to the foliage. This results in sudden or progressive drooping even when soil moisture is present.
As an evergreen shrub with relatively shallow root systems, R. ponticum is highly sensitive to dry spells. Lack of consistent moisture leads to loss of turgor pressure in the leaves, causing them to wilt and droop.
If recently moved, the fine feeder roots of R. ponticum may have been damaged, preventing effective water uptake. This physiological stress manifests as wilting of the upper canopy.
Rhododendrons are acid-loving plants; high soil pH prevents the uptake of essential micronutrients like iron. While typically causing chlorosis, extreme nutrient lockout can lead to overall plant vigor loss and drooping.
Your plant might also be experiencing one of these issues:
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