Why does your Rhododendron keleticum have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Rhododendrons are acid-loving plants; if the soil pH rises above 5.5, iron becomes chemically unavailable to the plant, leading to interveinal yellowing while veins remain green.
Excessive soil moisture or poor drainage in heavy soils prevents oxygen from reaching the roots, causing decay and preventing water/nutrient transport to the leaves.
As an evergreen shrub with shallow root systems, Keleti rhododendron is highly sensitive to drying out; prolonged drought causes leaves to lose chlorophyll and turn yellow before dropping.
A lack of nitrogen in the growing medium leads to a generalized loss of green color, often starting with older leaves turning pale yellow across the entire leaf surface.
Your plant might also be experiencing one of these issues:
English
Italiano
