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Tue 10 Feb, 2009 09:58 pm
Why does frost occur at the time it does-around 4 o’clock in the morning until around nine o’clock in the morning- what is it about that time of the morning that makes the frost appear then, and why does turning a sprinkler on and letting it water the plants protect the plants from frost damage?
@connielee,
It frosts over when the temperature goes below 33F (Oc). When you water the plants the water is warmer than the frost thus protecting the plants.
I wish it was something more romantic but that's the way it is.
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