Troubleshooting Brown Leaves on Indoor Palm

Mary's year-old palm has mostly brown leaves. It sits near a patio window shaded by outdoor trees. She waters "when it seems dry."

Likely Causes

1. Insufficient light: Supplement with a 2-bulb fluorescent fixture running dawn to dusk.
2. Watering issues:
   • Watering once a month is too little.
   • Checking only every 2 weeks leads to chronic underwatering.
   • No drainage holes: Plant sits in a swamp; roots rot even if surface feels dry.
   • Drain tray not emptied: Constant wetness causes root rot.

Correct Watering Protocol

• Pot must have drainage holes and a tray.
• Water thoroughly until excess drains.
• Empty tray after 1 hour.
• Wait until soil surface has been dry 4-5 days before watering again.
• Roots need dry periods to "breathe" CO₂.

More plants die from overwatering than underwatering. Fix drainage and light, and the palm should recover.