Although modern designs can be much more resilient than traditional models, greenhouses can still be vulnerable in cold weather. If you live somewhere where the temperatures drop really low in winter, or where you can expect heavy snowfall, it’s important that you know how to get your greenhouse safely through this difficult time.

When it comes to snow, some types of greenhouse are much better off than others. Greenhouses with angular or steeply curved roofs won’t accumulate heavy drifts the way more common greenhouse models do. However, they’re still vulnerable to building up a light coating of snow or frost which obscures the panels, making it difficult for the plants inside to get all the light they need. You should check your greenhouse every morning (and at intervals during the day, if the snow keeps falling) and sweep the roof panels clean with a broom. This may sound tricky, but after you’ve had a bit of practice you’ll find that it’s very quick and easy to do. You should make it a routine part of caring for your greenhouse in winter.

If you live in a place with low winter temperatures, you will want to install heating in your greenhouse, as sunlight alone may not produce enough heat to keep your plants happy. If you do this, bear in mind that temperature control is important not only for your plants but also for your greenhouse itself. Glass panels are less vulnerable to cold than they are to sudden changes in temperature. When you turn your heater on in winter, don’t put it on full straight away, no matter how cold your greenhouse is – let it warm up slowly. If the cold has come on suddenly and you’re worried about your plants in the meantime, you can blow on them to warm them as you might warm your hands.

Knowing the basic rules of caring for greenhouses in cold weather will ensure that your greenhouse lasts a long time and keeps your plants safe even in the depths of winter.