Troubleshooting
Splendid Zamia problems — and how to fix them
Splendid Zamia (Zamia splendens) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Scale insects on leaflets
Both armoured and soft scale species colonise the undersides of leaflets, causing yellowing, sticky deposits, and sooty mould. Treat with horticultural oil or neem oil sprayed to full coverage on both leaflet surfaces. Repeat every 10–14 days for 3 cycles.
Yellowing fronds from overwatering
Widespread yellowing of fronds, beginning with the oldest ones, combined with a soft caudex base is a warning sign of root rot. Ease off watering immediately, check drainage, and inspect roots — remove any brown, mushy roots and repot in fresh, dry, gritty mix.
Prevent splendid zamia problems before they start
Most splendid zamia issues are care-mismatch, not bad luck. Dial in the basics:
Splendid Zamia problems — FAQ
Why is my splendid zamia scale insects on leaflets?
Both armoured and soft scale species colonise the undersides of leaflets, causing yellowing, sticky deposits, and sooty mould. Treat with horticultural oil or neem oil sprayed to full coverage on both leaflet surfaces. Repeat every 10–14 days for 3 cycles.
Why is my splendid zamia yellowing fronds from overwatering?
Widespread yellowing of fronds, beginning with the oldest ones, combined with a soft caudex base is a warning sign of root rot. Ease off watering immediately, check drainage, and inspect roots — remove any brown, mushy roots and repot in fresh, dry, gritty mix.