Troubleshooting
Rudbeckia 'Cherry Brandy' problems — and how to fix them
Rudbeckia 'Cherry Brandy' (Rudbeckia hirta 'Cherry Brandy') 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
White powdery coating on leaves in humid, still air. Improve spacing and air flow; remove affected foliage.
Aphids
Clusters of small insects on new growth. Knock off with a jet of water or apply insecticidal soap.
Slugs and snails
Damage seedlings and young leaves at soil level. Use grit barriers or iron phosphate pellets.
Root rot
Caused by waterlogged soil. Ensure good drainage and do not overwater.
Legginess
Occurs in too much shade. Move to a sunnier position and deadhead regularly to encourage branching.
Prevent rudbeckia 'cherry brandy' problems before they start
Most rudbeckia 'cherry brandy' issues are care-mismatch, not bad luck. Dial in the basics:
Rudbeckia 'Cherry Brandy' problems — FAQ
Why is my rudbeckia 'cherry brandy' powdery mildew?
White powdery coating on leaves in humid, still air. Improve spacing and air flow; remove affected foliage.
Why is my rudbeckia 'cherry brandy' aphids?
Clusters of small insects on new growth. Knock off with a jet of water or apply insecticidal soap.
Why is my rudbeckia 'cherry brandy' slugs and snails?
Damage seedlings and young leaves at soil level. Use grit barriers or iron phosphate pellets.
Why is my rudbeckia 'cherry brandy' root rot?
Caused by waterlogged soil. Ensure good drainage and do not overwater.
Why is my rudbeckia 'cherry brandy' legginess?
Occurs in too much shade. Move to a sunnier position and deadhead regularly to encourage branching.