Seasonal
Daylight shortens markedly across Germany in winter, and the light that does arrive is weaker and lower in the sky. Combined with heated indoor air, the cold months are when most houseplant problems appear. The aim through this period is to keep plants steady rather than pushing growth.
Read the window orientation
Where a window faces changes how much light a plant receives, and the effect is sharper in winter when the sun stays low.
| Orientation | Winter light |
|---|---|
| South | Brightest; suitable for most light-loving plants |
| East / West | Moderate; gentle morning or afternoon sun |
| North | Lowest; best for low-light tolerant species |
In winter, moving a plant closer to the glass or to a brighter window often makes more difference than any other single change.
Keep plants off the heat
Many windowsills sit directly above radiators. The rising warm, dry air stresses leaves and dries soil unevenly. Where possible, use a sill without a radiator beneath it, or raise the plant and keep it back from the hottest air.
Cold-glass caution: on freezing nights, leaves touching single-glazed windows can chill. Pull tender plants back a few centimetres from the glass after dark.
Slow everything down
- Water less. Lower light means slower growth and lower water use; let soil dry more between waterings.
- Pause feeding. Most plants are not actively growing, so routine feeding can be held until light returns in spring.
- Hold off repotting. Repotting is generally better timed for the brighter, active-growth months.
Managing dry indoor air
Central heating lowers indoor humidity through winter. Grouping plants together, keeping them away from direct heat, and using a tray of water near (not under) the pots can help raise local humidity. Crisp brown leaf tips are a common sign that the air is very dry.
When light returns
As days lengthen from late winter into spring, growth picks up again. That is the point to gradually return to more regular watering, resume feeding, and handle any repotting — introducing brighter light slowly so leaves are not scorched.