Why does your Hydrangea macrophylla Magical Cantate have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Hydrangeas have large, thin leaves with high transpiration rates. When soil moisture is insufficient or air humidity drops, the plant cannot transport enough water to the leaf extremities, causing the tips to desiccate and turn brown.
Excessive application of synthetic fertilizers leads to a buildup of mineral salts in the growing medium. This osmotic pressure pulls water away from the leaf tips, resulting in characteristic marginal necrosis.
Magical Cantate hydrangeas can be sensitive to high levels of salts, chlorine, or fluoride found in municipal tap water. These elements accumulate in the leaf margins during transpiration, leading to tip burn.
If the soil is too compacted or if roots have been damaged by pests, the plant's ability to uptake water is compromised. This creates a physiological drought even if the surface soil appears moist.
Your plant might also be experiencing one of these issues:
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