Troubleshooting
Gum Palm problems — and how to fix them
Gum Palm (Dioon spinulosum) 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.
Root rot from soggy soil
Though thirstier than D. edule, it still rots in waterlogged mix. Keep drainage sharp and let the surface dry between waterings.
Scorched or bleached fronds
Harsh, unfiltered midday sun can bleach the glossy leaves of this forest-margin species. Provide bright but filtered light.
Scale and mealybugs
Sap-suckers settle on frond undersides and in the crown. Wipe off and treat with horticultural oil, inspecting new fronds.
Spiny leaflet edges
Mature fronds carry small marginal spines that can prick when handling; site the plant where it won't be brushed against and wear gloves when grooming.
Prevent gum palm problems before they start
Most gum palm issues are care-mismatch, not bad luck. Dial in the basics:
Looking for gum palm in general rather than its problems? Read the full gum palm care guide — light, water, soil and feeding.
Gum Palm problems — FAQ
Why is my gum palm root rot from soggy soil?
Though thirstier than D. edule, it still rots in waterlogged mix. Keep drainage sharp and let the surface dry between waterings.
Why is my gum palm scorched or bleached fronds?
Harsh, unfiltered midday sun can bleach the glossy leaves of this forest-margin species. Provide bright but filtered light.
Why is my gum palm scale and mealybugs?
Sap-suckers settle on frond undersides and in the crown. Wipe off and treat with horticultural oil, inspecting new fronds.
Why is my gum palm spiny leaflet edges?
Mature fronds carry small marginal spines that can prick when handling; site the plant where it won't be brushed against and wear gloves when grooming.