Why does your Hydrangea sargentiana have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Hydrangea sargentiana prefers slightly acidic soil; if the pH is too high, the plant cannot absorb iron, causing interveinal yellowing on new leaves. This is common in alkaline or limestone-rich soils.
Excessive moisture in heavy soil leads to anaerobic conditions, causing root rot. This prevents the plant from transporting nutrients, manifesting as overall yellowing and wilting of the foliage.
A lack of nitrogen prevents the synthesis of chlorophyll throughout the plant. In Hydrangeas, this usually appears as a uniform yellowing starting from the older, bottom leaves.
Hydrangea sargentiana has large leaves with high transpiration rates. Severe dehydration causes leaves to lose turgor and turn yellow/brown as the plant sacrifices foliage to conserve moisture.
Your plant might also be experiencing one of these issues:
English
Italiano
