Troubleshooting
Lantana problems — and how to fix them
Lantana (Lantana camara) 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.
Few or no flowers
Almost always too little light. Lantana needs full direct sun to bloom well; move it to the sunniest spot and avoid excess nitrogen fertiliser, which favours foliage over flowers.
Root rot / wilting
Caused by overwatering or poorly draining soil. Let the soil dry between waterings, ensure containers drain freely, and use a gritty, well-drained mix.
Powdery mildew
A white powdery coating on leaves, worse in humid, still air. Improve air circulation, avoid wetting foliage, and treat with an appropriate fungicide if it spreads.
Whiteflies and spider mites
Common sap-suckers, especially on plants overwintered indoors. Look for sticky residue, webbing, or stippled leaves; rinse foliage and treat with insecticidal soap or neem oil.
Lace bugs
Cause silvery, stippled or bleached-looking leaves with dark spotting underneath. Inspect leaf undersides and treat infestations promptly with insecticidal soap or neem.
Toxic to pets and livestock
ASPCA-listed toxic to dogs, cats, and horses; unripe berries are the most hazardous. Site away from pets and grazing animals, and seek veterinary advice if ingestion is suspected.
Prevent lantana problems before they start
Most lantana issues are care-mismatch, not bad luck. Dial in the basics:
Lantana problems — FAQ
Why is my lantana few or no flowers?
Almost always too little light. Lantana needs full direct sun to bloom well; move it to the sunniest spot and avoid excess nitrogen fertiliser, which favours foliage over flowers.
Why is my lantana root rot / wilting?
Caused by overwatering or poorly draining soil. Let the soil dry between waterings, ensure containers drain freely, and use a gritty, well-drained mix.
Why is my lantana powdery mildew?
A white powdery coating on leaves, worse in humid, still air. Improve air circulation, avoid wetting foliage, and treat with an appropriate fungicide if it spreads.
Why is my lantana whiteflies and spider mites?
Common sap-suckers, especially on plants overwintered indoors. Look for sticky residue, webbing, or stippled leaves; rinse foliage and treat with insecticidal soap or neem oil.
Why is my lantana lace bugs?
Cause silvery, stippled or bleached-looking leaves with dark spotting underneath. Inspect leaf undersides and treat infestations promptly with insecticidal soap or neem.
Why is my lantana toxic to pets and livestock?
ASPCA-listed toxic to dogs, cats, and horses; unripe berries are the most hazardous. Site away from pets and grazing animals, and seek veterinary advice if ingestion is suspected.