12 best greenhouse vegetables to grow in the winter

Added on 14 December 2023

Best Greenhouse Vegetables to Grow in Winter

When growing cool weather vegetables in a greenhouse, your goal should be to keep the temperature above (or as close to) freezing as possible. The frost-resistant vegetables listed below can tolerate temperatures at - or even slightly below - freezing.

Broccoli - Start your broccoli plants in fall, then keep them going all winter in your greenhouse so you can enjoy fresh broccoli during the coldest months of the year.
Broad beans - Also known as fava beans, broad beans - unlike other beans - are cool-weather crops. Start them prior to first frost and keep them growing over winter for an early spring harvest.
Cabbage - Cabbage is a great candidate to grow in winter greenhouses. It thrives in conditions as low as 27°F, and the cover of a greenhouse will continue to protect it from pests when spring arrives.
Carrots - Carrots do well in temperatures as low as 20°F, so you can actually alternate them between outdoors and your greenhouse depending on the weather forecast.
Cauliflower - Cauliflower grows well when it's cold (as low as 25°F), and it even tastes better after at least a light frost. Growing cauliflower in a greenhouse means you can enjoy it all winter.
Green peas - Cool weather peas - which all green peas are - will keep growing when temps stay above 40°F and will survive light frosts. So, they're great candidates for winter greenhouse growing.
Kale - Kale is extremely cold hardy, so you really only need to put it in a greenhouse if you frequently get temps below freezing. It'll do great even in cold and drafty greenhouses that dip down to well below freezing.