Troubleshooting
Rose of Sharon problems — and how to fix them
Rose of Sharon (Hibiscus syriacus) 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.
Japanese beetles
A primary pest in eastern North America — beetles skeletonize foliage and feed on flowers throughout summer; hand-pick in the early morning and apply neem-based sprays as a deterrent.
Aphids on new growth
Clusters of aphids on tender shoot tips cause distorted leaves and bud drop; knock off with a strong jet of water or apply insecticidal soap, targeting the undersides of leaves.
Self-seeding invasiveness
The straight species self-seeds prolifically and can become invasive in some regions of the eastern US; deadhead spent flowers before seed pods ripen, or choose sterile triploid cultivars to reduce the problem.
Prevent rose of sharon problems before they start
Most rose of sharon issues are care-mismatch, not bad luck. Dial in the basics:
Looking for rose of sharon in general rather than its problems? Read the full rose of sharon care guide — light, water, soil and feeding.
Rose of Sharon problems — FAQ
Why is my rose of sharon japanese beetles?
A primary pest in eastern North America — beetles skeletonize foliage and feed on flowers throughout summer; hand-pick in the early morning and apply neem-based sprays as a deterrent.
Why is my rose of sharon aphids on new growth?
Clusters of aphids on tender shoot tips cause distorted leaves and bud drop; knock off with a strong jet of water or apply insecticidal soap, targeting the undersides of leaves.
Why is my rose of sharon self-seeding invasiveness?
The straight species self-seeds prolifically and can become invasive in some regions of the eastern US; deadhead spent flowers before seed pods ripen, or choose sterile triploid cultivars to reduce the problem.