I was hoping the annuals that I have on my deck and patio would last a little longer, but temperatures have dropped below normal, and we have our first freeze warning tonight. In Atlanta, when temperatures are between 34 and 37 degrees, summer plants are susceptible to frost damage, especially tropical plants. The extent of the damage will depend upon how heavy the frost and the amount of wind. Hardier annuals and vegetables will have less damage and may possibly rebloom. The real danger to plants occurs when temperatures are 32 or below.

I saw this spectacular photo of the first frost in the North Carolina mountains.

What is frost? Click here to view full screen.

Click here for a favorite frost lab.