Plant care
Turnip 'Market Express'temperature & humidity
Brassica rapa var. rapa 'Market Express'
More about turnip 'market express'
Ideal temperature for turnip 'market express'
Aim for 10-20°C (50-68°F) on the thermostat and you've handled the easy part. The hard part is the half-metre around the plant: window glass that drops to near-freezing on a January night, a radiator pumping out hot dry air, a draught from an opened front door. Move the plant 30 cm and you've usually fixed the problem. Below roughly 10°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Turnip 'Market Express' is comparatively hardy (USDA 2-9 (cool-season annual), 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 turnip 'market express'
Turnip 'Market Express' sits happiest at around Ambient outdoor humidity relative humidity. A cool-season field crop unbothered by humidity levels and grown in open ground or beds. No special humidity management is needed. 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.
Turnip 'Market Express' temperature & humidity — frequently asked questions
What temperature is best for turnip 'market express'?
Turnip 'Market Express' grows best between 10-20°C (50-68°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 turnip 'market express' tolerate?
Turnip 'Market Express' starts to suffer below roughly 10°C. It tolerates a cold dormant period within USDA 2-9 (cool-season annual), but a wet cold root zone is more dangerous than cold air.
What humidity does turnip 'market express' need?
Turnip 'Market Express' prefers about Ambient outdoor humidity relative humidity. A cool-season field crop unbothered by humidity levels and grown in open ground or beds. No special humidity management is needed.
How do I raise humidity for turnip 'market express'?
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 turnip 'market express' live outside?
Turnip 'Market Express' is rated for USDA zone 2-9 (cool-season annual) 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 turnip 'market express' care
In the UK? Keeping turnip 'market express' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full turnip 'market express' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.