Why does your Brassica oleracea Red Kale have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyRed kale is sensitive to high concentrations of soluble salts in the soil. As water evaporates, salts accumulate at the leaf margins and tips, causing localized tissue necrosis.
Brassica species require consistent moisture to maintain cell turgidity. When water becomes scarce, the plant sacrifices the furthest extremities (the leaf tips) to preserve the main stem and core.
A lack of potassium interferes with osmoregulation within the plant cells. In kale, this specifically manifests as browning or 'scorching' starting at the leaf edges and tips.
Strong, dry winds can rapidly dehydrate the delicate margins of kale leaves faster than the roots can replace the moisture.
Your plant might also be experiencing one of these issues: