Why does your Royal Fern have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Royal Ferns are moisture-loving plants that require high ambient humidity. When the air is too dry, transpiration exceeds water uptake, causing the delicate frond tips to desiccate and turn brown.
Accumulated salts from tap water, fertilizers, or hard water can burn the sensitive edges of Royal Fern fronds. As the plant transpires, these minerals concentrate at the leaf margins, leading to necrosis.
Royal Ferns have a high water demand; allowing the substrate to dry out completely between waterings causes cellular collapse at the tips. Conversely, overly wet soil can cause root stress that manifests as tip burn.
If the soil remains saturated for too long, oxygen deprivation leads to fungal root decay. This prevents the fern from transporting water to the furthest points of the fronds, resulting in browning tips.
Your plant might also be experiencing one of these issues:
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