Troubleshooting
Red Angel's Trumpet problems — and how to fix them
Red Angel's Trumpet (Brugmansia sanguinea) 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.
Heat stress and wilting
Unlike tropical Brugmansias, B. sanguinea struggles in prolonged temperatures above 25°C — move container plants to a cooler, partially shaded position during summer heat waves.
Aphid colonies on new growth
Soft new shoots are targeted by aphids; knock them off with a strong jet of water or apply insecticidal soap, taking care not to inhale or ingest the plant sap while treating.
Leaf yellowing (chlorosis)
Often caused by iron or magnesium deficiency in alkaline soils; acidify with sulphur chips or use an ericaceous liquid feed to correct micronutrient uptake.
Prevent red angel's trumpet problems before they start
Most red angel's trumpet issues are care-mismatch, not bad luck. Dial in the basics:
Looking for red angel's trumpet in general rather than its problems? Read the full red angel's trumpet care guide — light, water, soil and feeding.
Red Angel's Trumpet problems — FAQ
Why is my red angel's trumpet heat stress and wilting?
Unlike tropical Brugmansias, B. sanguinea struggles in prolonged temperatures above 25°C — move container plants to a cooler, partially shaded position during summer heat waves.
Why is my red angel's trumpet aphid colonies on new growth?
Soft new shoots are targeted by aphids; knock them off with a strong jet of water or apply insecticidal soap, taking care not to inhale or ingest the plant sap while treating.
Why is my red angel's trumpet leaf yellowing (chlorosis)?
Often caused by iron or magnesium deficiency in alkaline soils; acidify with sulphur chips or use an ericaceous liquid feed to correct micronutrient uptake.