Why does your Rhododendron flammeum have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Rhododendrons are sensitive to high concentrations of salts found in many commercial fertilizers. Excessive salt buildup in the soil draws moisture out of the leaf cells, causing the tips to desiccate and turn brown.
Flame Rhododendrons require consistently moist, well-draining acidic soil. Prolonged periods of drought or failure to maintain humidity levels cause the furthest extremities of the leaf to die first.
While brown tips often suggest dryness, overly saturated soil leads to root decay which prevents the plant from transporting water to the leaf margins. This creates a paradoxical symptom where the plant appears thirsty despite wet soil.
As a species that thrives in humid environments, extremely dry indoor air or sudden temperature drops can cause rapid transpiration from the leaf edges.
Your plant might also be experiencing one of these issues:
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