Aglaonema (Chinese Evergreen) Leaves Curling Down: Causes & Fixes

Curling-down aglaonema (Chinese Evergreen) leaves are usually a sign of temperature stress in U.S. apartments — but it can also be 3 other things. Here's the quick diagnostic and the matching fix.

Cause #1: Cold Drafts (Most Common in U.S.)

Aglaonemas are tropical and hate temperatures below 60°F. A draft from a poorly sealed window or AC vent causes immediate leaf curling. Move the plant 6+ feet from any cold source. Recovery in 7–10 days.

Cause #2: Underwatering

If soil is bone dry 2 inches down, give a thorough deep watering. Leaves uncurl within 24–48 hours.

Cause #3 & #4: Light or Pest

Too much direct sun also curls leaves. Move to bright indirect light. Finally, check leaf undersides with a magnifier for spider mites — these cause downward curling combined with stippling.

Frequently asked questions

Will my aglaonema recover from cold damage?

Mild cold damage (curling only) recovers fully in 7–10 days. Severe damage (black blotches) means dead tissue — trim damaged leaves and improve conditions.

What's the ideal temperature for aglaonema?

65–80°F. They tolerate slightly outside that range but stress quickly below 60°F or above 90°F. Avoid windows in winter and direct AC airflow in summer.

Sources and references

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