Troubleshooting
Hoya Sarawakensis problems — and how to fix them
Hoya Sarawakensis (Hoya sarawakensis) 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.
Cold or draught damage
This warmth-loving Bornean species sulks below about 16°C, dropping or browning leaves. Keep it warm and away from cold windows and air-conditioning drafts.
Fungal leaf spots
High humidity plus water sitting on the broad leaves causes dark blotches. Improve airflow, water at the soil line, and humidify the air rather than wetting foliage.
Slow or stalled growth
Usually too little light or too cool a position. Move closer to a bright window or add a grow light and maintain steady warmth.
Mealybugs
These cottony pests gather in leaf axils. Remove with alcohol swabs and treat with insecticidal soap, repeating until no new pests appear.
Prevent hoya sarawakensis problems before they start
Most hoya sarawakensis issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Hoya — the full care guide.
Other Hoya varieties
Hoya Sarawakensis problems — FAQ
Why is my hoya sarawakensis cold or draught damage?
This warmth-loving Bornean species sulks below about 16°C, dropping or browning leaves. Keep it warm and away from cold windows and air-conditioning drafts.
Why is my hoya sarawakensis fungal leaf spots?
High humidity plus water sitting on the broad leaves causes dark blotches. Improve airflow, water at the soil line, and humidify the air rather than wetting foliage.
Why is my hoya sarawakensis slow or stalled growth?
Usually too little light or too cool a position. Move closer to a bright window or add a grow light and maintain steady warmth.
Why is my hoya sarawakensis mealybugs?
These cottony pests gather in leaf axils. Remove with alcohol swabs and treat with insecticidal soap, repeating until no new pests appear.