Plant care
Moses in the Cradletemperature & humidity
Tradescantia spathacea
More about moses in the cradle
Ideal temperature for moses in the cradle
Temperature kills fewer moses in the cradle 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 (65-80°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
Moses in the Cradle is frost-tender (USDA 9-11 (houseplant in cooler regions), 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 moses in the cradle
Moses in the Cradle sits happiest at around 40-60% relative humidity. Adaptable to average household humidity, though it appreciates a little extra. It is far more forgiving of dry air than many tropicals, which adds to its reputation as a beginner plant. 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.
Moses in the Cradle temperature & humidity — frequently asked questions
What temperature is best for moses in the cradle?
Moses in the Cradle grows best between 18-27°C (65-80°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 moses in the cradle tolerate?
Moses in the Cradle 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 moses in the cradle need?
Moses in the Cradle prefers about 40-60% relative humidity. Adaptable to average household humidity, though it appreciates a little extra. It is far more forgiving of dry air than many tropicals, which adds to its reputation as a beginner plant.
How do I raise humidity for moses in the cradle?
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 moses in the cradle live outside?
Moses in the Cradle is rated for USDA zone 9-11 (houseplant in cooler regions) 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 moses in the cradle care
In the UK? Keeping moses in the cradle warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full moses in the cradle care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.