UK temperature
Keeping begonia 'corbeille de feu' warm in a UK home
Begonia 'Corbeille de Feu'
More about begonia 'corbeille de feu' in the UK
The UK home, in plant terms
A typical UK home creates two opposite micro-problems at the same time. Radiator-driven heating spikes the air temperature and crashes humidity in the rooms where people actually sit; the older the housing stock the more likely a single-glazed window pane is sitting at near-freezing in January with a houseplant against it. Cold unheated bedrooms, north-facing rooms and conservatories without heating run far cooler than the thermostat suggests, and the British winter gives the lowest indoor daylight in any of Growli's markets. Begonia 'Corbeille de Feu' is frost-tender, so the radiator-warmed side of the house is right for it in winter — just not pressed against a cold pane or directly in the radiator updraft.
The actual numbers
Ideally begonia 'corbeille de feu' sits between 13-24°C. (That is 55-75°F in Fahrenheit.) Average to moderate humidity suits it; good airflow matters more than high moisture for these dense-flowering plants. In stagnant, very humid conditions watch for mildew and botrytis. Keep water off the flowers and leaves where possible. Watch for the room dropping below about 13°C overnight — common in UK unheated bedrooms in January, and the point where growth stalls and leaves chill-mark.
For the RHS hardiness side of this, see is begonia 'corbeille de feu' hardy in the UK? (rating RHS H2, sourced from the RHS rating system). For the US/USDA framing of the same numbers, see the begonia 'corbeille de feu' temperature guide.
Winter placement in a UK home
For begonia 'corbeille de feu' through a UK winter, three placement rules clear up most problems: 1) keep it at least a hand's width back from the window pane on single-glazed or very cold double-glazed glass, especially overnight when curtains close behind the plant; 2) keep it out of the direct vertical updraft above a radiator — that column of hot dry air browns leaf tips even on tolerant species; 3) judge by the room you can actually feel, not the central thermostat — many UK rooms run several degrees below the hall reading in winter. Humidity drops to roughly 25–35% in a heated UK living room; a pebble tray, grouping with other plants, or a small humidifier puts that back to a level houseplants actually like.
Begonia 'Corbeille de Feu' temperature in the UK — frequently asked questions
What temperature does begonia 'corbeille de feu' need in the UK?
Begonia 'Corbeille de Feu' prefers 13-24°C (55-75°F). The British issue is rarely the average — it is the extremes: a cold single-glazed window in January, the hot dry air directly above a radiator, or a north-facing unheated room that runs far cooler than the hall thermostat.
Will begonia 'corbeille de feu' survive a cold UK winter room?
Begonia 'Corbeille de Feu' is frost-tender (RHS H2). Keep it well above freezing, ideally above 10°C overnight, which means the radiator-warmed side of the house rather than an unheated bedroom or conservatory.
Can begonia 'corbeille de feu' go on a UK windowsill in winter?
On a single-glazed or very cold pane, no — overnight the leaves pressed against the glass can drop below the plant's comfort band, especially behind drawn curtains. A small gap (a hand's width back) or thicker thermal curtains in front of the plant fixes it, and modern double-glazing usually solves it outright.
Does UK radiator-driven heating dry begonia 'corbeille de feu' out?
Yes — UK living rooms typically run at around 25–35% relative humidity in winter. That is well below what most houseplants prefer. Begonia 'Corbeille de Feu' tolerates this better than the calathea-and-fern family, but a pebble tray or grouping plants still helps.
What temperature range does begonia 'corbeille de feu' actually like?
13-24°C is the comfortable band (55-75°F in Fahrenheit for reference). That covers normal UK living-room temperatures all year; the work is making sure cold pockets (windowsills, unheated rooms) and hot pockets (radiator updrafts) do not push it outside that band.
More begonia 'corbeille de feu' care
See the full begonia 'corbeille de feu' care guide, its UK watering (hard vs soft tap water), and UK hardiness.