Keep foliage away from cold glass, cold drafts and hot air vents, and check available light. Test the mix before watering. Plants growing slowly generally need less feed, but decisions depend on the species and indoor conditions.
Check the light: a window changes with the season
Day length and sun angle can change in winter, while buildings, trees and curtains affect exposure. Observe whether the plant still receives the light its species needs instead of relying only on window direction.
If it needs more light, move it gradually and keep leaves away from cold glass. Plants returning indoors should also be checked for pests and can be kept apart from the existing collection initially.
Check moisture instead of following the calendar
With less light and slower growth many pots dry more slowly, but heated rooms can dry some mixes quickly. Feel below the surface, compare the pot’s weight and consider the plant’s needs.
When an ordinary soil-grown plant is ready for a thorough watering, water slowly and let the excess drain. Do not automatically add water to drooping leaves: wet roots and cold stress can also cause wilting.
Avoid cold drafts, hot air and abrupt changes
Many tropical houseplants are sensitive to cold, although tolerances differ by species. Keep foliage from touching cold windows and avoid frequently opened doors, radiators and direct heater airflow.
Make position changes gradually rather than moving plants repeatedly to chase sun. Protect a new plant from prolonged cold exposure on the journey home.
Adjust feeding and humidity to actual growth
When light is limited and growth has slowed, many plants need less fertilizer or a pause. A plant still growing in a warm room under supplemental light may have different needs; follow the species, mix and product instructions.
Heating can dry indoor air. Check whether the plant actually needs higher humidity before choosing a method. If using a tray of water and pebbles, keep the pot base above the water.
Common questions
Should I stop watering in winter?
No. Check the plant’s needs and the mix; room temperature, light and heating all affect drying.
Must every houseplant stop receiving fertilizer in winter?
No. Many slow-growing plants need less or none, while a plant still growing in good light may need a different approach.
What if a sunny windowsill gets cold at night?
Check the plant’s cold tolerance, keep foliage off cold glass and away from drafts, and find a more stable position with suitable light if needed.