We have had three days of heavy frost, without an intervening full thaw.

The frost-on-frost makes the lawn look like we’ve had a light snow.

However, instead of snow, the white is caused by millions of tiny ice crystals grown directly on the plant material. Crystals 1/4 inch long are common. Certain grasses seem to be especially good seed material for the ice crystals.

Plants that are aren’t quite as good a foundation material make for more interesting structures, since the frost can grow well on part but not all.

I especially like how the frost looks on the sword ferns.

The patterning is also more visible in slightly more sheltered areas. This dead comfrey leaf shows the wonderful variability of frost growth.

We’re expecting one more frosty morning tomorrow. With each subsequent night the frost gets bigger, but some of the definition is lost. Pretty soon we’ll be lost under a forest of ice crystals!