Plant care
Colocasia 'Coffee Cups'temperature & humidity
Colocasia esculenta 'Coffee Cups'
More about colocasia 'coffee cups'
Ideal temperature for colocasia 'coffee cups'
Colocasia 'Coffee Cups' is comfortable in any room a person is comfortable in, roughly 20-30°C (68-86°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 20°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Colocasia 'Coffee Cups' is frost-tender (USDA 8-11 (lift and store the corm in colder zones), 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 colocasia 'coffee cups'
Colocasia 'Coffee Cups' sits happiest at around 50-80% relative humidity. Prefers high humidity but is forgiving outdoors if roots stay wet. Indoors, dry air browns the leaf edges, so pair high humidity with constant moisture at the roots. 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.
Colocasia 'Coffee Cups' temperature & humidity — frequently asked questions
What temperature is best for colocasia 'coffee cups'?
Colocasia 'Coffee Cups' grows best between 20-30°C (68-86°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 colocasia 'coffee cups' tolerate?
Colocasia 'Coffee Cups' starts to suffer below roughly 20°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 colocasia 'coffee cups' need?
Colocasia 'Coffee Cups' prefers about 50-80% relative humidity. Prefers high humidity but is forgiving outdoors if roots stay wet. Indoors, dry air browns the leaf edges, so pair high humidity with constant moisture at the roots.
How do I raise humidity for colocasia 'coffee cups'?
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 colocasia 'coffee cups' live outside?
Colocasia 'Coffee Cups' is rated for USDA zone 8-11 (lift and store the corm in colder zones) 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 colocasia 'coffee cups' care
In the UK? Keeping colocasia 'coffee cups' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full colocasia 'coffee cups' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.