Winter can be a dangerous time for houseplants as most of them are dormant, so they can find it more difficult to deal with problems and changes in temperature.

Overwatering

This is probably the number one risk to indoor plants as sitting in waterlogged soil results in blackened stems and wilting leaves. The second issue is central heating. Houseplants usually like a constant temperature, but if you put them in a centrally heated room, or worse, next to a radiator, they’ll experience temperature swings into double figures between night and day.

On the move

The best option is to move plants to a place that has a constant temperature, such as an unheated, frost-free conservatory or a light utility room. In these environments, plants need minimal watering as a constant cool temperature means the soil remains moist. Check your plants every week to make sure they're happy. We recommend using a moisture meter, but benign neglect is a good way of ensuring their survival through winter.

Spring cleaning

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Once spring comes, move your plants back into the body of the house, give their leaves a little clean with a damp cloth and, if roots are poking out of the bottom of the pot, repot into a bigger container.

When you're repotting, ensure the surface of the soil around the plant stays at the same level. This is called the nursery line, the point where the stem emerges from the soil. If you cover the stem in compost, it will rot away.

Spring is also a good time to trim back any uneven, damaged or dead growth. Once the plants are back into growing mode, feed them once a week to really get them going.

Problem solving

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If your plant starts to look sick, it’s either been overwatered, is in the wrong place, or has been affected by a pest or disease. Look for holes or brown marks on the leaves, cotton-like fluffy stuff on stems or leaves, or little bugs. If there’s a visible bug such as white or green fly, treat with a pesticide. If there are no visible bugs but a specific problem such as an area of mould, try using fungicide.

With less specific problems such as curled, brown or falling leaves, the problem is likely to be down to positioning or frequency of watering. If your plant doesn’t flower or grow, it could be because light levels are too low, so move it to a brighter position.

Novice indoor gardeners might find it's worth trying a few types of different plants. Give them the best home you can, with the right care, and see which ones suit best. Don’t beat yourself up trying to change your habits or household. Just change your choice of plants.

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