Troubleshooting
Triangle palm problems — and how to fix them
Triangle palm (Dypsis decaryi) 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, crispy frond tips
Usually underwatering, low humidity, or tap-water mineral build-up; switch to rain or filtered water.
Yellowing fronds
Often a magnesium or potassium deficiency, which palms are prone to; feed with palm-specific fertiliser.
Fine webbing and stippled fronds
Spider mites, common in warm dry indoor air; rinse the foliage and raise humidity.
Sticky residue and brown bumps on fronds
Scale insects; wipe off and treat with insecticidal soap or neem oil.
Pale, stretched, weak fronds
Insufficient light; move to the brightest spot available.
Browning lower fronds
Normal turnover as the palm ages; trim spent fronds at the base.
Prevent triangle palm problems before they start
Most triangle palm issues are care-mismatch, not bad luck. Dial in the basics:
Triangle palm problems — FAQ
Why is my triangle palm brown, crispy frond tips?
Usually underwatering, low humidity, or tap-water mineral build-up; switch to rain or filtered water.
Why is my triangle palm yellowing fronds?
Often a magnesium or potassium deficiency, which palms are prone to; feed with palm-specific fertiliser.
Why is my triangle palm fine webbing and stippled fronds?
Spider mites, common in warm dry indoor air; rinse the foliage and raise humidity.
Why is my triangle palm sticky residue and brown bumps on fronds?
Scale insects; wipe off and treat with insecticidal soap or neem oil.
Why is my triangle palm pale, stretched, weak fronds?
Insufficient light; move to the brightest spot available.
Why is my triangle palm browning lower fronds?
Normal turnover as the palm ages; trim spent fronds at the base.