These are the cold-hardy vegetables that grow naturally during cold winters in Northern climates. The second group is winter greenhouse vegetables that grow happily outside in the coldest weather. These may be plants that prefer warmer daytime temperatures or those that will be simply miserable if exposed to cold winds. The first of these are vegetables that would not tolerate harsh winter conditions. There are two groups of vegetables you can think about growing in a greenhouse over winter. It is also the best time for growing vegetables that bolt (go to seed) in hot summer weather! Such crops include my favorites, like salad rocket and pak choi. Growing vegetables in the greenhouse over winter is a great way to nurture plants outside of their regular growing season. Read More – What Should You Plant in December in the USA? Best Vegetables to Grow In a Greenhouse In WinterĬold-frame greenhouses are perfect for growing hardy greens! Kale, spinach, turnips, cabbage, beets, or cold-tolerating veggie.Ī greenhouse is ideal for growing vegetables over the winter! So, don’t let this valuable space stand idle, and fill it with cold-tolerant vegetables. So, let’s discuss which vegetables work well in a winter greenhouse garden. If you are contemplating using your greenhouse to grow vegetables in winter, it is worth planning what you want to grow. To start with, we’d suggest starting with more straightforward suggestions for vegetables that will grow happily through the winter in the greenhouse. Growing summer fruiting vegetables in the winter requires considerable skill and investment – we’re talking heated greenhouses, grow lights, and controlled ventilation here! I know this from experience, as our first frosts here have just finished the last few summer-fruiting cucumber plants in our greenhouse! These dropping temperatures mean that if you live in a zone prone to temperatures below freezing, you will not be able to grow plants that are sensitive to frost in the winter in a greenhouse. But, overnight, the greenhouse will be almost as cold as the external air. The daytime sunshine offers a few hours of warmer temperatures. Greenhouses do not stay warm in the winter without insulation or a heater. So, if you’re considering whether a greenhouse is worthwhile, we’d say it is! And using it all year round means it will pay for itself even more quickly.
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