HOW TO CARE FOR HOUSEPLANTS IN WINTER
During the winter months, houseplants’ growth rate slows significantly, and many enter a dormant state, so alter your care schedule to keep them happy. Unlike outdoor plants that respond to the seasons, indoor plants rely on us to provide the right levels of warmth, light, water and food as well as suitable air conditions.
WATER IN MODERATION During the winter, indoor plants require far less watering – and indeed over-watering during the resting season can lead to rot. Watering requirements will vary on plant type, but generally twice a month or even less will be enough. Cacti and succulents may need no watering at all until spring.
The soil should be allowed to dry out fully before you water them again; a general rule of thumb is to always check the soil moisture by pushing in your finger down to the knuckle, to feel how dry it is below the top surface. Then only water as and when the plant requires it.
You should also make sure that plant pots have adequate drainage, so the houseplants do not sit in water, which can cause damage.
HOLD OFF ON FEEDING There is no need to feed indoor plants during winter, and in fact doing so could cause problems - unused fertiliser can cause salt build-up and root burn or could upset the natural growth cycle of the plant.
CONTROL THE LIGHT As the days get shorter and light levels decrease, move your houseplants into a position where they can receive maximum sunlight. Do, however, be careful of cold draughts coming from windows. Sensitivity to light will vary depending on the type of plant, and some indoor plants can be damaged from over exposure to direct sunlight, so be sure to research the light requirements of each plant.
CHECK THE TEMPERATURE Most houseplants do not like fluctuating temperatures, so be mindful of extremes from radiators, fireplaces, windows and doors. Plants thrive in a consistent environment, so where possible position them away from areas that change frequently.
THINK HUMIDITY Many indoor plants like cool, damp conditions, but heating our homes during winter can create very dry conditions. Try grouping plants together to create a humid microclimate, as plants release water vapour as they transpire. You can also place your plants near a tray of water, and spray their leaves regularly with a mister.
KEEP ON TOP OF DUST A build-up of dust on the leaves of houseplants can block their pores and also harbour pests, so it’s important to clean foliage regularly, particularly during winter. Also remove damaged and diseased leaves.