Plant care
Barnim's Dorsteniatemperature & humidity
Dorstenia barnimiana
More about barnim's dorstenia
Ideal temperature for barnim's dorstenia
Barnim's Dorstenia is comfortable in any room a person is comfortable in, roughly 18–30°C; min 10°C (64–86°F; min 50°F). The mistakes are micro-climates: a north-facing window on a frosty night, a south-facing windowsill in a summer heatwave, the standing draught between an opened kitchen door and the radiator behind it. Read the room around the plant, not the thermostat. Below roughly 18°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Barnim's Dorstenia is frost-tender (USDA 10b–12, 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 barnim's dorstenia
Barnim's Dorstenia sits happiest at around 40–60% relative humidity. Being from tropical African habitats, D. barnimiana appreciates moderate to moderately high humidity compared to other caudiciform succulents. Typical well-lit bathroom or kitchen humidity is suitable. In very dry heated indoor air (below 30%), occasional misting of the leaves (not the tuber) helps prevent desiccation. 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.
Barnim's Dorstenia temperature & humidity — frequently asked questions
What temperature is best for barnim's dorstenia?
Barnim's Dorstenia grows best between 18–30°C; min 10°C (64–86°F; min 50°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 barnim's dorstenia tolerate?
Barnim's Dorstenia 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 barnim's dorstenia need?
Barnim's Dorstenia prefers about 40–60% relative humidity. Being from tropical African habitats, D. barnimiana appreciates moderate to moderately high humidity compared to other caudiciform succulents. Typical well-lit bathroom or kitchen humidity is suitable. In very dry heated indoor air (below 30%), occasional misting of the leaves (not the tuber) helps prevent desiccation.
How do I raise humidity for barnim's dorstenia?
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 barnim's dorstenia live outside?
Barnim's Dorstenia is rated for USDA zone 10b–12 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 barnim's dorstenia care
In the UK? Keeping barnim's dorstenia warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full barnim's dorstenia care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.