Sego Palm Yellow Tips in Extreme Heat: Nutrient and Water Balance

Sego Palm Yellow Tips in Extreme Heat: Nutrient and Water Balance

New sago palm in Fresno, CA (100°F+) with yellow tips and spots after sprinkler irrigation: likely heat stress compounded by possible overwatering or nutrient deficiency. Moved to shade, watering every 2–3 days.

Causes of Yellowing

• Old leaves: Overwatering or excess fertilizer.
• New leaves: Nutrient deficiency (N, K, Mg, Mn) or poor soil.

Action

• Remove yellow/brown leaves.
• Apply balanced palm fertilizer with micronutrients.
• Water deeply but infrequently; avoid daily sprinkler on foliage.
• Shade during extreme heat (100°F+).
• Check for scale/spider mites; treat if found.

Sagos need well-drained soil and consistent moisture—not constant wetness.