Harvey County

Growing Vegetables in Cold Weather

 What do Broccoli, Cauliflower, lettuce, potatoes, Radish, peas and spinach have in common?  They can all be planted in cold temperatures!  It is spring! How cold can they go?

Certain vegetables can withstand cold spring temperatures as long as they have been toughened up by gradually exposing them to sunlight and outdoor temperatures. This “hardening off” process usually takes about a week.

Reducing watering and temperature is the key to toughening up transplants. If possible, move transplants outside for a portion of each day. Start by placing them in a shady, protected location and gradually move them into a more exposed, sunny location as the week progresses. Hardened off cabbage, broccoli, cauliflower and onions can withstand temperatures near 20 F without being killed. Lettuce plants are not quite as tough but will be okay if exposed to temperatures in the mid 20s.

Don’t hesitate to put these plants out now if extreme cold is not forecast.

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