NDSU Extension - Burleigh County

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Frost Potential

As temperatures start dipping down during the night, our time is limited in the gardens.  Gardens in low spots are the most vulnerable to frost because cold air sinks.

 Frost

The first frost is typically a light one with temperatures between 29-32° F. The good news is with a light frost we can protect our sensitive plants.  The most sensitive plants include: tomatoes, peppers, cucumbers, melons, and squash.

 

A blanket or tarp is sufficient to protect these sensitive plants.  Less sensitive plants, such as radishes, carrots, and broccoli can tolerate a light frost and don’t require protection. Frost can kill potato vines, but the tubers snugly tucked underground are safe.

 

Harvest whatever tender vegetables you can before a killing frost occurs.  Tomatoes with a light blush on them can ripen off the vine.

 

Apples can tolerate temperatures down to 25° F before we start to see damage.

For more information, contact:

Kelsey Deckert, Program Assistant

Burleigh County Extension (701) 221-6865

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