Plant care
Stalked Cliviatemperature & humidity
Clivia caulescens
More about stalked clivia
Ideal temperature for stalked clivia
Stalked Clivia is comfortable in any room a person is comfortable in, roughly 10–25°C (cool winter rest at 10–14°C) (50–77°F (cool winter rest at 50–57°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 10°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Stalked Clivia is frost-tender (USDA 9-11 (indoor in most climates), RHS H1b). 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 stalked clivia
Stalked Clivia sits happiest at around 50–70% relative humidity. Prefers the higher humidity of its forest origin; in dry indoor environments place the pot on a tray of damp pebbles or use a room humidifier, especially in winter when central heating is running. 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.
Stalked Clivia temperature & humidity — frequently asked questions
What temperature is best for stalked clivia?
Stalked Clivia grows best between 10–25°C (cool winter rest at 10–14°C) (50–77°F (cool winter rest at 50–57°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 stalked clivia tolerate?
Stalked Clivia starts to suffer below roughly 10°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 stalked clivia need?
Stalked Clivia prefers about 50–70% relative humidity. Prefers the higher humidity of its forest origin; in dry indoor environments place the pot on a tray of damp pebbles or use a room humidifier, especially in winter when central heating is running.
How do I raise humidity for stalked clivia?
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 stalked clivia live outside?
Stalked Clivia is rated for USDA zone 9-11 (indoor in most climates) and RHS hardiness H1b. Outside that range it must come indoors before the first frost — treat any outdoor stint as a summer holiday, not a permanent home.
More stalked clivia care
In the UK? Keeping stalked clivia warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full stalked clivia care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.