Troubleshooting
Golden Angel's Trumpet problems — and how to fix them
Golden Angel's Trumpet (Brugmansia aurea) 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.
Powdery mildew on leaves
Grey-white powdery coating on leaf surfaces indicates powdery mildew, common in warm, dry weather with cool nights — improve air circulation and apply a sulphur-based or potassium bicarbonate fungicide.
Root rot from overwatering
Waterlogged soil rapidly causes roots to rot; ensure containers have generous drainage holes and use a free-draining mix — symptoms include sudden collapse of foliage despite moist soil.
Caterpillar damage
Sphinx moth caterpillars (Manduca spp.) and other large caterpillars can defoliate plants rapidly; hand-pick if populations are low or apply Bacillus thuringiensis (Bt) spray.
Prevent golden angel's trumpet problems before they start
Most golden angel's trumpet issues are care-mismatch, not bad luck. Dial in the basics:
Looking for golden angel's trumpet in general rather than its problems? Read the full golden angel's trumpet care guide — light, water, soil and feeding.
Golden Angel's Trumpet problems — FAQ
Why is my golden angel's trumpet powdery mildew on leaves?
Grey-white powdery coating on leaf surfaces indicates powdery mildew, common in warm, dry weather with cool nights — improve air circulation and apply a sulphur-based or potassium bicarbonate fungicide.
Why is my golden angel's trumpet root rot from overwatering?
Waterlogged soil rapidly causes roots to rot; ensure containers have generous drainage holes and use a free-draining mix — symptoms include sudden collapse of foliage despite moist soil.
Why is my golden angel's trumpet caterpillar damage?
Sphinx moth caterpillars (Manduca spp.) and other large caterpillars can defoliate plants rapidly; hand-pick if populations are low or apply Bacillus thuringiensis (Bt) spray.