Troubleshooting
Round-Leaf Calathea problems — and how to fix them
Round-Leaf Calathea (Calathea orbifolia) 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.
Crispy brown leaf edges
The most frequent complaint, caused by humidity below 50%, tap water with fluoride or chlorine, or inconsistent watering. Raise humidity with a humidifier and switch to filtered or rainwater.
Root rot from overwatering
C. orbifolia is sensitive to soggy soil. Yellowing lower leaves and a foul smell from the pot signal root rot. Unpot, trim black mushy roots, and repot in fresh well-draining mix. Ensure the pot has drainage holes.
Spider mite infestation
Hot, dry conditions invite spider mites; look for fine webbing and stippled leaves. Increase humidity, wipe leaves with a damp cloth, and treat with insecticidal soap or neem oil spray, repeating weekly for three weeks.
Prevent round-leaf calathea problems before they start
Most round-leaf calathea issues are care-mismatch, not bad luck. Dial in the basics:
Looking for round-leaf calathea in general rather than its problems? Read the full round-leaf calathea care guide — light, water, soil and feeding.
Round-Leaf Calathea problems — FAQ
Why is my round-leaf calathea crispy brown leaf edges?
The most frequent complaint, caused by humidity below 50%, tap water with fluoride or chlorine, or inconsistent watering. Raise humidity with a humidifier and switch to filtered or rainwater.
Why is my round-leaf calathea root rot from overwatering?
C. orbifolia is sensitive to soggy soil. Yellowing lower leaves and a foul smell from the pot signal root rot. Unpot, trim black mushy roots, and repot in fresh well-draining mix. Ensure the pot has drainage holes.
Why is my round-leaf calathea spider mite infestation?
Hot, dry conditions invite spider mites; look for fine webbing and stippled leaves. Increase humidity, wipe leaves with a damp cloth, and treat with insecticidal soap or neem oil spray, repeating weekly for three weeks.