Plant care
Banana Passion Fruittemperature & humidity
Passiflora tripartita var. mollissima
More about banana passion fruit
Ideal temperature for banana passion fruit
Temperature kills fewer banana passion fruit 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 10-25°C (50-77°F) is fine; the spot you put the plant in matters more. Below roughly 10°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Banana Passion Fruit is frost-tender (USDA 9-11 (tolerates light frost; cooler-growing than tropical passionfruit), 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 banana passion fruit
Banana Passion Fruit sits happiest at around 50-80% relative humidity. Native to humid, cool Andean highlands, it likes moderately humid air but is adaptable. It dislikes hot, arid conditions; in dry indoor air provide some humidity and good airflow to discourage mildew. 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.
Banana Passion Fruit temperature & humidity — frequently asked questions
What temperature is best for banana passion fruit?
Banana Passion Fruit grows best between 10-25°C (50-77°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 banana passion fruit tolerate?
Banana Passion Fruit 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 banana passion fruit need?
Banana Passion Fruit prefers about 50-80% relative humidity. Native to humid, cool Andean highlands, it likes moderately humid air but is adaptable. It dislikes hot, arid conditions; in dry indoor air provide some humidity and good airflow to discourage mildew.
How do I raise humidity for banana passion fruit?
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 banana passion fruit live outside?
Banana Passion Fruit is rated for USDA zone 9-11 (tolerates light frost; cooler-growing than tropical passionfruit) 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 banana passion fruit care
In the UK? Keeping banana passion fruit warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full banana passion fruit care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.