Why does your Hydrangea macrophylla Magical Wings have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Hydrangea macrophylla is highly sensitive to soil pH; if the soil is too alkaline, iron becomes chemically unavailable to the plant. This results in interveinal chlorosis where leaves turn yellow while veins remain dark green.
Excessive moisture in 'Magical Wings' hydrangeas displaces oxygen in the soil, leading to root suffocation and rot. As roots fail, they cannot transport nitrogen and magnesium upward, causing generalized yellowing.
A lack of nitrogen prevents the production of chlorophyll, often manifesting as a uniform pale yellowing that starts on older, lower leaves first. This is common in heavy-feeding cultivars like 'Magical Wings' if the soil is depleted.
While hydrangeas prefer moisture, extreme drought causes the plant to shed chlorophyll and wilt to conserve resources. This can lead to rapid yellowing of leaf margins and eventual leaf drop.
Your plant might also be experiencing one of these issues:
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