Another excellent post by New Hampshire Garden Solutions
Our first snow was just a dusting and didn’t amount to much, but it did grease up the roads and remind people that it was time for snow tires and windshield scrapers. There were a surprising number of car accidents for a seemingly small amount of snow, but the temperature dropped over night and it turned to ice on the roadways. There’s nothing worse to drive on than black ice.
Where the snow didn’t fall the frost did, and it coated this juniper haircap moss (Polytrichum juniperinum) one cold morning. The mosses and other plants looked like they had been dusted with powdered sugar.
Ice needles have started to form in places where there is plenty of groundwater. For them to form the air temperature has to fall below 32 degrees F right at the soil surface while the soil and groundwater remain thawed. Hydrostatic pressure forces the…
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