As I was getting ready to go to work this morning, I looked out the upstairs bedroom window to see if we'd had frost. It had been predicted and as cold as it was when I went to bed last night, I was pretty sure I'd see it. But as I looked out over the lawn, it was a deep, dewy green - not the whitish, frosty appearance I'd expected.
About 15 minutes later, I walked downstairs to eat breakfast and looked out the window again and saw...FROST! I grabbed my camera and walked outside, just as the sun was coming up, and snapped this photo:
The lawn in the foreground is ours. The one on the other side of the grape arbor and fence is our neighbor's. He had frost - we didn't. How can that be?
It's like this. Tim doesn't like to mow his lawn, so when he does, he mows it very, very short. That way, he doesn't have to mow it as often. We keep ours longer, to try and keep the ground under it shaded as much as possible, to discourage weed seed germination and to not stress the grass by scalping it. It's healthier that way.
But when the temperatures reach freezing, another benefit is realized. The longer grass holds the heat in better and for a longer period of time than the super short grass. That's why our neighbor had a frosty lawn and we didn't.