Now the nights are drawing in, and you never seem to be home in daylight, it's easy to forget about watering pots and hanging baskets in the garden.
It's true that containers won't need as much attention
as during the summer, but winter winds can be very drying, and so
particularly evergreens will need some additional water maybe once a
month through the winter. The most important thing to remember is to
ensure that the roots don't sit in water, because the moisture will
turn to ice, and if the compost freezes solid for long it kills the
plants (from drought, ironically!).
Ensuring that any saucers used in the summer are removed, and that pots are drained by placing on bricks or pot feet, so that any excess moisture can run out.
these pot feet are available from crocus
Water before midday, so that plants have time to soak up the water before the daylight fades and the temperature decreases, and if possible avoid getting water on the plant leaves, just water the compost.
If watering in a greenhouse or poly tunnel, ensure that all doors and windows are open to ensure thorough ventilation, but close up before dark.
In the middle of the winter, it may be worth "lagging" your most precious pots with bubble wrap, or moving them to the lee of a house wall where the temperature will be several degrees higher than in the rest of the garden.