Redwood Needle Yellowing: Root Zone Stress Signals

1/8 Yellow Needles = Investigate Roots

A 60-year-old redwood suddenly showing yellow needles is signaling root/soil stress—usually water or nutrient related.

Checklist

• Water: Has it been hot, dry, or windy? Deep-soak the root zone if rainfall is lacking.
• Trunk base: Look for loose bark, cavities, or recent excavation.
• Soil nutrition: A soil test can reveal deficiencies.

If the above check out, a balanced fertilizer and consistent deep watering often restore green color.