Why does your Cycas revoluta have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Overwatering or poor drainage is the most frequent cause of yellowing in Cycas revoluta. Excess moisture saturates the substrate, leading to oxygen deprivation and fungal pathogens like Phytophthora that destroy the sensitive root system.
Sago palms require consistent micronutrients to maintain chlorophyll production. A lack of magnesium often presents as chlorosis (yellowing) on older fronds, while nitrogen deficiency causes a more uniform yellowing across the plant.
Accumulation of mineral salts from tap water or excessive fertilizer can burn the leaf tips and cause chlorosis. This is common in Cycas revoluta as they are sensitive to high concentrations of sodium and chloride.
While they love bright light, a sudden shift to intense direct midday sun can scorch leaves, while insufficient light prevents photosynthesis, leading to pale, yellowish fronds. The plant's metabolism slows down significantly in low-light environments.
Your plant might also be experiencing one of these issues:
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