Troubleshooting
Mauna Loa Peace Lily problems — and how to fix them
Mauna Loa Peace Lily (Spathiphyllum cochlearispathum) 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.
Brown leaf tips
The most common complaint, linked to fluoride in tap water, low humidity, or over-fertilising. Use filtered or rainwater, maintain humidity above 40%, and feed at half strength only.
Failure to bloom
Insufficient light is the most common cause. Move to a brighter spot; some growers briefly expose the plant to cooler night temperatures (around 15°C) to trigger flowering.
Yellow leaves
Overwatering or root rot. Check that the pot drains freely and that you are not watering on a fixed schedule regardless of soil moisture.
Wilting despite moist soil
A sign of root rot. Inspect roots; healthy roots are white and firm. Remove rotted sections, treat with a dilute hydrogen peroxide solution, and repot in fresh compost.
Scale insects and mealybugs
Both conceal themselves along leaf midribs and in leaf axils. Remove manually with alcohol-soaked swabs and follow up with neem oil spray.
Prevent mauna loa peace lily problems before they start
Most mauna loa peace lily issues are care-mismatch, not bad luck. Dial in the basics:
Mauna Loa Peace Lily problems — FAQ
Why is my mauna loa peace lily brown leaf tips?
The most common complaint, linked to fluoride in tap water, low humidity, or over-fertilising. Use filtered or rainwater, maintain humidity above 40%, and feed at half strength only.
Why is my mauna loa peace lily failure to bloom?
Insufficient light is the most common cause. Move to a brighter spot; some growers briefly expose the plant to cooler night temperatures (around 15°C) to trigger flowering.
Why is my mauna loa peace lily yellow leaves?
Overwatering or root rot. Check that the pot drains freely and that you are not watering on a fixed schedule regardless of soil moisture.
Why is my mauna loa peace lily wilting despite moist soil?
A sign of root rot. Inspect roots; healthy roots are white and firm. Remove rotted sections, treat with a dilute hydrogen peroxide solution, and repot in fresh compost.
Why is my mauna loa peace lily scale insects and mealybugs?
Both conceal themselves along leaf midribs and in leaf axils. Remove manually with alcohol-soaked swabs and follow up with neem oil spray.