Troubleshooting
Mountain Wax Plant problems — and how to fix them
Mountain Wax Plant (Hoya montana) 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.
Fungal leaf spot in stagnant air
The high humidity requirements combined with poor air circulation can promote fungal leaf spot; always grow in a well-ventilated position and avoid wetting the foliage when watering.
Mealybugs
White waxy mealybugs shelter in leaf axils and along stems; inspect regularly and treat promptly with isopropyl alcohol swabs followed by a neem oil preventive spray.
Prevent mountain wax plant problems before they start
Most mountain wax plant issues are care-mismatch, not bad luck. Dial in the basics:
Mountain Wax Plant problems — FAQ
Why is my mountain wax plant fungal leaf spot in stagnant air?
The high humidity requirements combined with poor air circulation can promote fungal leaf spot; always grow in a well-ventilated position and avoid wetting the foliage when watering.
Why is my mountain wax plant mealybugs?
White waxy mealybugs shelter in leaf axils and along stems; inspect regularly and treat promptly with isopropyl alcohol swabs followed by a neem oil preventive spray.