Troubleshooting
Black-Eyed Susan Vine problems — and how to fix them
Black-Eyed Susan Vine (Thunbergia alata) 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.
Spider mites
Thrive in hot, dry conditions; mist regularly and treat with insecticidal soap or neem oil.
Aphids
Attack new growth tips; dislodge with water jets or apply insecticidal soap.
Whitefly
Common pest; use yellow sticky traps and insecticidal soap sprays on the undersides of leaves.
Poor flowering
Usually caused by low light or over-rich soil; move to a sunnier spot and avoid excess nitrogen.
Powdery mildew
Grey-white powder on leaves in humid, poorly ventilated conditions; improve air circulation and apply a bicarbonate spray.
Prevent black-eyed susan vine problems before they start
Most black-eyed susan vine issues are care-mismatch, not bad luck. Dial in the basics:
Black-Eyed Susan Vine problems — FAQ
Why is my black-eyed susan vine spider mites?
Thrive in hot, dry conditions; mist regularly and treat with insecticidal soap or neem oil.
Why is my black-eyed susan vine aphids?
Attack new growth tips; dislodge with water jets or apply insecticidal soap.
Why is my black-eyed susan vine whitefly?
Common pest; use yellow sticky traps and insecticidal soap sprays on the undersides of leaves.
Why is my black-eyed susan vine poor flowering?
Usually caused by low light or over-rich soil; move to a sunnier spot and avoid excess nitrogen.
Why is my black-eyed susan vine powdery mildew?
Grey-white powder on leaves in humid, poorly ventilated conditions; improve air circulation and apply a bicarbonate spray.