Growli

Plant care

Many-flowered Schismatoglottistemperature & humidity

Schismatoglottis multiflora

RHS H1aUSDA 11–12Toxic to pets

More about many-flowered schismatoglottis

Ideal temperature for many-flowered schismatoglottis

Aim for 20–30°C (68–86°F) on the thermostat and you've handled the easy part. The hard part is the half-metre around the plant: window glass that drops to near-freezing on a January night, a radiator pumping out hot dry air, a draught from an opened front door. Move the plant 30 cm and you've usually fixed the problem. Below roughly 20°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.

Cold tolerance & winter care

Many-flowered Schismatoglottis is frost-tender (USDA 11–12, RHS H1a). 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 many-flowered schismatoglottis

Many-flowered Schismatoglottis sits happiest at around 60–80% relative humidity. Requires consistently high humidity for healthy leaf production and to trigger repeated flowering. Ideal for terrariums or enclosed plant display cases. In open conditions, place on a large pebble tray, group with other humidity-loving plants, or run a humidifier nearby. 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.

Many-flowered Schismatoglottis temperature & humidity — frequently asked questions

What temperature is best for many-flowered schismatoglottis?

Many-flowered Schismatoglottis 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 many-flowered schismatoglottis tolerate?

Many-flowered Schismatoglottis 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 many-flowered schismatoglottis need?

Many-flowered Schismatoglottis prefers about 60–80% relative humidity. Requires consistently high humidity for healthy leaf production and to trigger repeated flowering. Ideal for terrariums or enclosed plant display cases. In open conditions, place on a large pebble tray, group with other humidity-loving plants, or run a humidifier nearby.

How do I raise humidity for many-flowered schismatoglottis?

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 many-flowered schismatoglottis live outside?

Many-flowered Schismatoglottis is rated for USDA zone 11–12 and RHS hardiness H1a. Outside that range it must come indoors before the first frost — treat any outdoor stint as a summer holiday, not a permanent home.

More many-flowered schismatoglottis care

In the UK? Keeping many-flowered schismatoglottis warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full many-flowered schismatoglottis care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.