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New Sago Palm Has Green Trunk Buildup and Crispy New Fronds — Algae, Not Mold

Green Coating on Sago Trunk = Algae, Not Fungus

Your week-old nursery sago has green buildup on its bulb/trunk and shriveled, brown new fronds inside. The older plant is thriving. Good news: the green stuff is likely harmless algae from shade/humidity.

Why New Fronds Are Crispy

  • Transplant shock + possible underwatering at nursery.
  • Sago fronds emerge stiff and upright — they arch down as they mature.
  • Give it time: new flushes will normalize.

No Cross-Contamination Risk

Algae don't spread disease. Your healthy sago won't "catch" anything.

Care Tips

  • Bright light, well-drained soil.
  • Water when top 2" dry — sagos hate wet feet.
  • Fertilize lightly with palm formula in growing season.

Monitor new growth. If next flush is green and firm, the plant is established.

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