Plant care
Lemon-Scented Gingertemperature & humidity
Zingiber citriodorum
More about lemon-scented ginger
Ideal temperature for lemon-scented ginger
Lemon-Scented Ginger is comfortable in any room a person is comfortable in, roughly 15–35 °C (growing season); rhizome should not drop below 5 °C (59–95 °F (growing season); rhizome minimum 41 °F). The mistakes are micro-climates: a north-facing window on a frosty night, a south-facing windowsill in a summer heatwave, the standing draught between an opened kitchen door and the radiator behind it. Read the room around the plant, not the thermostat. Below roughly 15°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Lemon-Scented Ginger is frost-tender (USDA 9a–11, RHS H2). It cannot survive a frost, so in most of the US and UK it lives indoors year-round or summers outside and comes back in well before the first autumn frost — once nights drop toward 10-12°C is the cue, not the first frost warning. Acclimate it over a week when moving between indoors and out so the leaves do not shock.
Humidity for lemon-scented ginger
Lemon-Scented Ginger sits happiest at around 60–85% relative humidity. Prefers high humidity consistent with its Thai rainforest origin; when grown indoors or in a greenhouse, mist regularly or use a pebble tray with water to maintain ambient moisture around the foliage. 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.
Lemon-Scented Ginger temperature & humidity — frequently asked questions
What temperature is best for lemon-scented ginger?
Lemon-Scented Ginger grows best between 15–35 °C (growing season); rhizome should not drop below 5 °C (59–95 °F (growing season); rhizome minimum 41 °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 lemon-scented ginger tolerate?
Lemon-Scented Ginger starts to suffer below roughly 15°C. It is frost-tender and will be damaged or killed by a frost, so bring it indoors once nights fall toward 10-12°C.
What humidity does lemon-scented ginger need?
Lemon-Scented Ginger prefers about 60–85% relative humidity. Prefers high humidity consistent with its Thai rainforest origin; when grown indoors or in a greenhouse, mist regularly or use a pebble tray with water to maintain ambient moisture around the foliage.
How do I raise humidity for lemon-scented ginger?
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 lemon-scented ginger live outside?
Lemon-Scented Ginger is rated for USDA zone 9a–11 and RHS hardiness H2. Outside that range it must come indoors before the first frost — treat any outdoor stint as a summer holiday, not a permanent home.
More lemon-scented ginger care
In the UK? Keeping lemon-scented ginger warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full lemon-scented ginger care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.