Plant care
Monstera obliquatemperature & humidity
Monstera obliqua
More about monstera obliqua
Ideal temperature for monstera obliqua
Temperature kills fewer monstera obliqua 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 18-27 C (64-80 F) is fine; the spot you put the plant in matters more. Below roughly 18°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Monstera obliqua is frost-tender (USDA 10-12 (outdoors); grown as a houseplant elsewhere, RHS undefined). 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 monstera obliqua
Monstera obliqua sits happiest at around 80% or higher relative humidity. Genuinely high humidity is the make-or-break factor; this is one of the fussiest Monstera for moisture in the air. Below roughly 70% the wafer-thin leaves crisp at the edges. Use a humidifier, a glass cabinet, or a sealed terrarium rather than relying on misting, which is too short-lived to sustain the levels it needs. 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.
Monstera obliqua temperature & humidity — frequently asked questions
What temperature is best for monstera obliqua?
Monstera obliqua grows best between 18-27 C (64-80 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 monstera obliqua tolerate?
Monstera obliqua starts to suffer below roughly 18°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 monstera obliqua need?
Monstera obliqua prefers about 80% or higher relative humidity. Genuinely high humidity is the make-or-break factor; this is one of the fussiest Monstera for moisture in the air. Below roughly 70% the wafer-thin leaves crisp at the edges. Use a humidifier, a glass cabinet, or a sealed terrarium rather than relying on misting, which is too short-lived to sustain the levels it needs.
How do I raise humidity for monstera obliqua?
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 monstera obliqua live outside?
Monstera obliqua is rated for USDA zone 10-12 (outdoors); grown as a houseplant elsewhere. Outside that range it must come indoors before the first frost — treat any outdoor stint as a summer holiday, not a permanent home.
More monstera obliqua care
In the UK? Keeping monstera obliqua warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full monstera obliqua care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.