Plant care
Lantanatemperature & humidity
Lantana camara
More about lantana
Ideal temperature for lantana
Temperature kills fewer lantana plants than you'd think. What kills them is the micro-climate within a normal-temperature room — a leaf pressed against single-glazed winter glass, the hot dry updraft directly above a radiator, the cold blast from an AC vent. The thermostat reading at 10-30 C (50-86 F) is fine; the spot you put the plant in matters more. Below roughly 10°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Lantana is comparatively hardy (USDA USDA 9-11 (perennial); root-hardy and dies back in zone 8; grown as an annual in colder zones, RHS undefined). Within that range it tolerates a cold dormant spell outdoors; outside it, grow it in a container you can move under cover or overwinter in a cool but frost-free spot. Hardiness assumes an established plant in well-drained soil — a wet, cold root zone kills far more plants than cold air alone.
Humidity for lantana
Lantana sits happiest at around Average ambient (40-60%) relative humidity. Tolerant of a wide humidity range and unfussy outdoors. High humidity with poor airflow can encourage powdery mildew, so prioritise good air circulation over raising humidity. The usual low-humidity tell is crisp brown leaf tips and edges while the soil moisture is fine — a sign the air, not the watering, is the problem. If you need to raise it, the reliable methods are grouping plants together, standing the pot on a tray of damp pebbles (the pot above the waterline, never in it), or running a small humidifier in winter when indoor heating dries the air most. Misting is the least effective — it raises humidity for minutes, not hours.
Lantana temperature & humidity — frequently asked questions
What temperature is best for lantana?
Lantana grows best between 10-30 C (50-86 F). Keep it out of cold draughts, off freezing windowsills in winter, and away from the hot dry air directly above radiators — the extremes matter far more than the average room temperature.
How cold can lantana tolerate?
Lantana starts to suffer below roughly 10°C. It tolerates a cold dormant period within USDA USDA 9-11 (perennial); root-hardy and dies back in zone 8; grown as an annual in colder zones, but a wet cold root zone is more dangerous than cold air.
What humidity does lantana need?
Lantana prefers about Average ambient (40-60%) relative humidity. Tolerant of a wide humidity range and unfussy outdoors. High humidity with poor airflow can encourage powdery mildew, so prioritise good air circulation over raising humidity.
How do I raise humidity for lantana?
Group it with other plants, stand the pot on a tray of damp pebbles (kept above the waterline), or run a small humidifier in winter. Misting only helps for a few minutes, so it is the weakest option for a plant that genuinely needs more humidity.
Can lantana live outside?
Lantana is rated for USDA zone USDA 9-11 (perennial); root-hardy and dies back in zone 8; grown as an annual in colder zones. Within that range it can stay outdoors; outside it, grow it in a moveable container and protect the roots from a wet, cold winter.
More lantana care
In the UK? Keeping lantana warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full lantana care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.