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Plant care

Short-winged Wax Planttemperature & humidity

Hoya brevialata

RHS H1bUSDA 11–12Pet-safe

More about short-winged wax plant

Ideal temperature for short-winged wax plant

Aim for 18–29 °C (65–85 °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 18°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.

Cold tolerance & winter care

Short-winged Wax Plant is frost-tender (USDA 11–12 (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 short-winged wax plant

Short-winged Wax Plant sits happiest at around 60–80% relative humidity. Mist the aerial roots or stand the pot on a pebble tray with water; this species originates from humid tropical forest and does poorly in dry centrally-heated rooms below 50% RH. 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.

Short-winged Wax Plant temperature & humidity — frequently asked questions

What temperature is best for short-winged wax plant?

Short-winged Wax Plant grows best between 18–29 °C (65–85 °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 short-winged wax plant tolerate?

Short-winged Wax Plant 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 short-winged wax plant need?

Short-winged Wax Plant prefers about 60–80% relative humidity. Mist the aerial roots or stand the pot on a pebble tray with water; this species originates from humid tropical forest and does poorly in dry centrally-heated rooms below 50% RH.

How do I raise humidity for short-winged wax plant?

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 short-winged wax plant live outside?

Short-winged Wax Plant is rated for USDA zone 11–12 (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 short-winged wax plant care

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