Troubleshooting
Aglaonema Red problems — and how to fix them
Aglaonema Red (Aglaonema 'Red Siam') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Yellowing leaves
Most often overwatering or cold, soggy soil. Let the top third dry between waterings and keep it above 16°C; chilling causes yellowing and collapse.
Brown leaf tips or edges
Caused by dry air, fluoride/salt buildup or over-fertilising. Use filtered water, flush the soil and ease off feeding.
Faded red coloration
Too little light mutes the pink and crimson. Move to brighter indirect light, but avoid harsh direct sun that bleaches and burns.
Cold damage
Greyish, water-soaked patches appear below about 15°C or in cold drafts. Keep away from windows in winter and chilly entryways.
Prevent aglaonema red problems before they start
Most aglaonema red issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Aglaonema (Chinese Evergreen) — the full care guide.
Other Aglaonema (Chinese Evergreen) varieties
Aglaonema Red problems — FAQ
Why is my aglaonema red yellowing leaves?
Most often overwatering or cold, soggy soil. Let the top third dry between waterings and keep it above 16°C; chilling causes yellowing and collapse.
Why is my aglaonema red brown leaf tips or edges?
Caused by dry air, fluoride/salt buildup or over-fertilising. Use filtered water, flush the soil and ease off feeding.
Why is my aglaonema red faded red coloration?
Too little light mutes the pink and crimson. Move to brighter indirect light, but avoid harsh direct sun that bleaches and burns.
Why is my aglaonema red cold damage?
Greyish, water-soaked patches appear below about 15°C or in cold drafts. Keep away from windows in winter and chilly entryways.