Troubleshooting Yellow Leaves on Aglaonema 'Silver Queen'

Four Silver Queen Aglaonemas, all propagated from a 10-year-old mother plant, suddenly developed yellow leaves over three months. Three plants still look good; the mother plant needs help. No pests visible.

Possible Causes

• Temperature: Cool temps (≤60°F) cause chilling injury.
• Light changes: Shorter days may push plants below their light threshold; or lower sun angle may increase intensity at south windows.
• Watering: Reduced light slows growth and water uptake, but indoor heating increases evaporation. Adjust watering accordingly.
• Water quality: Hard or softened water alters soil pH, causing yellowing. Flush with filtered/distilled water.
• Pruning: Aglaonemas naturally become leggy. If other factors are optimal, prune to rejuvenate.

The expert requests photos for specific pruning advice and offers a detailed article via email.

Expert advice from Will Creed, Interior Landscaper, Horticultural Help, NYC.