Plant care
Salvia farinacea 'Evolution Violet'temperature & humidity
Salvia farinacea 'Evolution Violet'
More about salvia farinacea 'evolution violet'
Ideal temperature for salvia farinacea 'evolution violet'
Temperature kills fewer salvia farinacea 'evolution violet' 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 18-29°C (65-85°F) is fine; the spot you put the plant in matters more. Below roughly 18°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Salvia farinacea 'Evolution Violet' is comparatively hardy (USDA 8-10 (grown as an annual in colder zones), RHS H3). 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 salvia farinacea 'evolution violet'
Salvia farinacea 'Evolution Violet' sits happiest at around 40-65% relative humidity. Adapts to a broad range of outdoor humidity and tolerates dry air well. Good airflow is more important than humidity, helping prevent mildew and rot in dense plantings. 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.
Salvia farinacea 'Evolution Violet' temperature & humidity — frequently asked questions
What temperature is best for salvia farinacea 'evolution violet'?
Salvia farinacea 'Evolution Violet' 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 salvia farinacea 'evolution violet' tolerate?
Salvia farinacea 'Evolution Violet' starts to suffer below roughly 18°C. It tolerates a cold dormant period within USDA 8-10 (grown as an annual in colder zones), but a wet cold root zone is more dangerous than cold air.
What humidity does salvia farinacea 'evolution violet' need?
Salvia farinacea 'Evolution Violet' prefers about 40-65% relative humidity. Adapts to a broad range of outdoor humidity and tolerates dry air well. Good airflow is more important than humidity, helping prevent mildew and rot in dense plantings.
How do I raise humidity for salvia farinacea 'evolution violet'?
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 salvia farinacea 'evolution violet' live outside?
Salvia farinacea 'Evolution Violet' is rated for USDA zone 8-10 (grown as an annual in colder zones) and RHS hardiness H3. 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 salvia farinacea 'evolution violet' care
In the UK? Keeping salvia farinacea 'evolution violet' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full salvia farinacea 'evolution violet' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.