Troubleshooting
King Palm problems — and how to fix them
King Palm (Archontophoenix cunninghamiana) 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.
Browning frond tips
The most frequent complaint, caused by dry air, under-watering or salt/fluoride in tap water. Keep soil evenly moist, raise humidity, and water with low-mineral water.
Yellowing fronds
Usually magnesium or potassium deficiency, common in fast-growing container palms. Use a palm-specific fertiliser and leave green fronds intact while the palm reuses their nutrients.
Spider mites indoors
Warm, dry indoor air invites mites that bronze and speckle fronds. Raise humidity, rinse the foliage regularly, and treat with horticultural oil if webbing appears.
Cold and draught damage
Frost-tender and sensitive to chills below about 5°C; cold browns or kills fronds. Keep consistently warm and shield from cold draughts and unheated rooms.
Prevent king palm problems before they start
Most king palm issues are care-mismatch, not bad luck. Dial in the basics:
Looking for king palm in general rather than its problems? Read the full king palm care guide — light, water, soil and feeding.
King Palm problems — FAQ
Why is my king palm browning frond tips?
The most frequent complaint, caused by dry air, under-watering or salt/fluoride in tap water. Keep soil evenly moist, raise humidity, and water with low-mineral water.
Why is my king palm yellowing fronds?
Usually magnesium or potassium deficiency, common in fast-growing container palms. Use a palm-specific fertiliser and leave green fronds intact while the palm reuses their nutrients.
Why is my king palm spider mites indoors?
Warm, dry indoor air invites mites that bronze and speckle fronds. Raise humidity, rinse the foliage regularly, and treat with horticultural oil if webbing appears.
Why is my king palm cold and draught damage?
Frost-tender and sensitive to chills below about 5°C; cold browns or kills fronds. Keep consistently warm and shield from cold draughts and unheated rooms.