Plant care
Hydrangea 'Bobo'temperature & humidity
Hydrangea paniculata 'Bobo'
More about hydrangea 'bobo'
Ideal temperature for hydrangea 'bobo'
Temperature kills fewer hydrangea 'bobo' 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 -30 to 35°C (-22 to 95°F) is fine; the spot you put the plant in matters more. Below roughly -30°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Hydrangea 'Bobo' is comparatively hardy (USDA 3-8, RHS H7). 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 'bobo'
Hydrangea 'Bobo' sits happiest at around 40-70% relative humidity. Performs well across a wide range of humidity levels. In containers on patios, ensure adequate air circulation to reduce fungal disease, especially in warm, damp conditions. 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 'Bobo' temperature & humidity — frequently asked questions
What temperature is best for hydrangea 'bobo'?
Hydrangea 'Bobo' grows best between -30 to 35°C (-22 to 95°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 'bobo' tolerate?
Hydrangea 'Bobo' starts to suffer below roughly -30°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 'bobo' need?
Hydrangea 'Bobo' prefers about 40-70% relative humidity. Performs well across a wide range of humidity levels. In containers on patios, ensure adequate air circulation to reduce fungal disease, especially in warm, damp conditions.
How do I raise humidity for hydrangea 'bobo'?
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 'bobo' live outside?
Hydrangea 'Bobo' is rated for USDA zone 3-8 and RHS hardiness H7. 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 'bobo' care
In the UK? Keeping hydrangea 'bobo' 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 'bobo' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.