Troubleshooting
Super King Ixora problems — and how to fix them
Super King Ixora (Ixora coccinea 'Super King') 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.
Interveinal chlorosis
'Super King' is especially sensitive to high soil pH causing iron chlorosis — new leaves yellow while veins stay green. Test pH and amend with sulfur or acidifying fertiliser. Apply chelated iron chelate at 4-6 week intervals until colour returns. Use only soft or rainwater for irrigation.
Sooty mold from scale insects
Waxy brown scale insects on stems secrete honeydew that supports black sooty mold on leaf surfaces. Remove scale with horticultural oil spray; clean sooty mold from leaves with dilute soap solution. Ensure good air circulation and avoid excess nitrogen feeding.
Bud drop after transport or repotting
Environmental changes — moving location, root disturbance, or temperature shock — frequently cause bud drop. After purchase or repotting, keep the plant in stable conditions; do not move a budding plant. Consistent warmth and light help buds develop to open flowers.
Prevent super king ixora problems before they start
Most super king ixora issues are care-mismatch, not bad luck. Dial in the basics:
- Common jungle geranium problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Super King Ixora watering schedule
- Super King Ixora light requirements
- Best soil mix for super king ixora
- Super King Ixora temperature & humidity
- Full super king ixora care guide
Super King Ixora varieties: common problems
Looking for super king ixora in general rather than its problems? Read the full super king ixora care guide — light, water, soil and feeding.
Super King Ixora problems — FAQ
Why is my super king ixora interveinal chlorosis?
'Super King' is especially sensitive to high soil pH causing iron chlorosis — new leaves yellow while veins stay green. Test pH and amend with sulfur or acidifying fertiliser. Apply chelated iron chelate at 4-6 week intervals until colour returns. Use only soft or rainwater for irrigation.
Why is my super king ixora sooty mold from scale insects?
Waxy brown scale insects on stems secrete honeydew that supports black sooty mold on leaf surfaces. Remove scale with horticultural oil spray; clean sooty mold from leaves with dilute soap solution. Ensure good air circulation and avoid excess nitrogen feeding.
Why is my super king ixora bud drop after transport or repotting?
Environmental changes — moving location, root disturbance, or temperature shock — frequently cause bud drop. After purchase or repotting, keep the plant in stable conditions; do not move a budding plant. Consistent warmth and light help buds develop to open flowers.