Sago Palm Yellowing: Nutrient Deficiency Diagnosis

Six-year-old potted sago palm with yellowing new and old leaves, never fertilized? Classic nitrogen or iron deficiency—easily fixed.

Why Not Manganese?

Manganese deficiency causes frizzled, distorted new growth ("frizzle top"), not uniform yellowing. Your symptoms point to N or Fe.

Treatment Plan

1. Apply specialized palm fertilizer with micronutrients per label.
2. Ensure proper watering—moist but well-drained.
3. Repot if rootbound (check for circling roots).
4. Winter protection: garage with light is good.

Palm Fertilizer Essentials

Look for: 8-2-12 or similar ratio WITH magnesium, manganese, iron, zinc, copper, boron. Regular lawn fertilizer lacks critical micros for cycads.

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