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Plant care

Hydrangea 'Pinky Winky'temperature & humidity

Hydrangea paniculata 'DVPpinky' (Pinky Winky)

RHS H6USDA 3-8Toxic to pets

More about hydrangea 'pinky winky'

Ideal temperature for hydrangea 'pinky winky'

Aim for -34 to 30°C (-30 to 86°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 -34°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.

Cold tolerance & winter care

Hydrangea 'Pinky Winky' is comparatively hardy (USDA 3-8, RHS H6). 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 hydrangea 'pinky winky'

Hydrangea 'Pinky Winky' sits happiest at around Ambient outdoor relative humidity. A hardy garden shrub with no special humidity needs; thrives in normal seasonal outdoor air in temperate climates. 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.

Hydrangea 'Pinky Winky' temperature & humidity — frequently asked questions

What temperature is best for hydrangea 'pinky winky'?

Hydrangea 'Pinky Winky' grows best between -34 to 30°C (-30 to 86°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 hydrangea 'pinky winky' tolerate?

Hydrangea 'Pinky Winky' starts to suffer below roughly -34°C. It tolerates a cold dormant period within USDA 3-8, but a wet cold root zone is more dangerous than cold air.

What humidity does hydrangea 'pinky winky' need?

Hydrangea 'Pinky Winky' prefers about Ambient outdoor relative humidity. A hardy garden shrub with no special humidity needs; thrives in normal seasonal outdoor air in temperate climates.

How do I raise humidity for hydrangea 'pinky winky'?

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 hydrangea 'pinky winky' live outside?

Hydrangea 'Pinky Winky' is rated for USDA zone 3-8 and RHS hardiness H6. 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 hydrangea 'pinky winky' care

In the UK? Keeping hydrangea 'pinky winky' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full hydrangea 'pinky winky' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.