Plant care
Creeping Winter Savory temperature & humidity
Satureja montana subsp. illyrica
More about creeping winter savory
Ideal temperature for creeping winter savory
Temperature kills fewer creeping winter savory 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 7-28°C (45-82°F) is fine; the spot you put the plant in matters more. Below roughly 7°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Creeping Winter Savory is comparatively hardy (USDA 5-8, RHS H5). 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 creeping winter savory
Creeping Winter Savory sits happiest at around 30-50% relative humidity. Prefers dry air with good airflow. Damp, crowded conditions invite mildew and stem rot, so give the spreading mats room to breathe. 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.
Creeping Winter Savory temperature & humidity — frequently asked questions
What temperature is best for creeping winter savory?
Creeping Winter Savory grows best between 7-28°C (45-82°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 creeping winter savory tolerate?
Creeping Winter Savory starts to suffer below roughly 7°C. It tolerates a cold dormant period within USDA 5-8, but a wet cold root zone is more dangerous than cold air.
What humidity does creeping winter savory need?
Creeping Winter Savory prefers about 30-50% relative humidity. Prefers dry air with good airflow. Damp, crowded conditions invite mildew and stem rot, so give the spreading mats room to breathe.
How do I raise humidity for creeping winter savory?
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 creeping winter savory live outside?
Creeping Winter Savory is rated for USDA zone 5-8 and RHS hardiness H5. 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 creeping winter savory care
In the UK? Keeping creeping winter savory warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full creeping winter savory care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.