Troubleshooting
Cape honeysuckle problems — and how to fix them
Cape honeysuckle (Tecoma capensis) 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.
Root rot from overwatering
The most common cause of plant decline. Saturated soil leads to Phytophthora and Fusarium root rots within 48 hours. Plant in well-drained soil, avoid clay hollows, and water only when the soil has dried slightly.
Spider mites and mealybugs
Occur in hot, dusty, or dry conditions. Treat spider mites by improving humidity and spraying undersides with horticultural oil. Remove mealybugs with isopropyl alcohol on a cotton swab or insecticidal soap.
Hawkmoth caterpillar feeding
Large hawkmoth larvae can cause significant defoliation in summer. Remove caterpillars by hand; the plant recovers quickly and the damage is rarely fatal to a well-established specimen.
Prevent cape honeysuckle problems before they start
Most cape honeysuckle issues are care-mismatch, not bad luck. Dial in the basics:
Looking for cape honeysuckle in general rather than its problems? Read the full cape honeysuckle care guide — light, water, soil and feeding.
Cape honeysuckle problems — FAQ
Why is my cape honeysuckle root rot from overwatering?
The most common cause of plant decline. Saturated soil leads to Phytophthora and Fusarium root rots within 48 hours. Plant in well-drained soil, avoid clay hollows, and water only when the soil has dried slightly.
Why is my cape honeysuckle spider mites and mealybugs?
Occur in hot, dusty, or dry conditions. Treat spider mites by improving humidity and spraying undersides with horticultural oil. Remove mealybugs with isopropyl alcohol on a cotton swab or insecticidal soap.
Why is my cape honeysuckle hawkmoth caterpillar feeding?
Large hawkmoth larvae can cause significant defoliation in summer. Remove caterpillars by hand; the plant recovers quickly and the damage is rarely fatal to a well-established specimen.