Plant care
Alice's Sundewtemperature & humidity
Drosera aliciae
More about alice's sundew
Ideal temperature for alice's sundew
Temperature kills fewer alice's sundew 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 10-32°C (50-90°F) is fine; the spot you put the plant in matters more. Below roughly 10°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Alice's Sundew is comparatively hardy (USDA 9-11 (outdoors); grown as a houseplant or in a bog/terrarium elsewhere, RHS undefined). Within that range it tolerates a cold dormant spell outdoors; outside it, grow it in a container you can move under cover or overwinter in a cool but frost-free spot. Hardiness assumes an established plant in well-drained soil — a wet, cold root zone kills far more plants than cold air alone.
Humidity for alice's sundew
Alice's Sundew sits happiest at around 50-60% relative humidity. Appreciates moderate humidity around 50-60% to keep the dewy mucilage glistening, but it is more forgiving than tropical sundews and copes with average household air. If tentacles stop being sticky, raise local humidity with a tray or a more enclosed spot rather than soaking the leaves. 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.
Alice's Sundew temperature & humidity — frequently asked questions
What temperature is best for alice's sundew?
Alice's Sundew grows best between 10-32°C (50-90°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 alice's sundew tolerate?
Alice's Sundew starts to suffer below roughly 10°C. It tolerates a cold dormant period within USDA 9-11 (outdoors); grown as a houseplant or in a bog/terrarium elsewhere, but a wet cold root zone is more dangerous than cold air.
What humidity does alice's sundew need?
Alice's Sundew prefers about 50-60% relative humidity. Appreciates moderate humidity around 50-60% to keep the dewy mucilage glistening, but it is more forgiving than tropical sundews and copes with average household air. If tentacles stop being sticky, raise local humidity with a tray or a more enclosed spot rather than soaking the leaves.
How do I raise humidity for alice's sundew?
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 alice's sundew live outside?
Alice's Sundew is rated for USDA zone 9-11 (outdoors); grown as a houseplant or in a bog/terrarium elsewhere. Within that range it can stay outdoors; outside it, grow it in a moveable container and protect the roots from a wet, cold winter.
More alice's sundew care
In the UK? Keeping alice's sundew warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full alice's sundew care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.