Why does your Savoy Cabbage Sonho F1 have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Excessive nitrogen or mineral salts in the soil can accumulate at the leaf margins, drawing moisture out of the cells and causing necrotic brown tips. This is particularly common in brassicas like Savoy cabbage when heavy synthetic fertilizers are used without adequate leaching.
Savoy cabbage has a high water content and large leaf surface area, making it sensitive to moisture fluctuations. When the plant cannot transport enough water to the furthest extremities of the leaves, the tips dry out and turn brown.
A lack of potassium impairs the plant's ability to regulate stomatal conductance and water usage. In cabbage, this deficiency typically manifests first as chlorosis followed by browning along the leaf margins and tips.
The textured, crinkled leaves of Savoy cabbage can capture more wind resistance; high winds accelerate transpiration rates beyond the roots' ability to keep up, leading to desiccation of the leaf tips.
Your plant might also be experiencing one of these issues:
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