Damage caused by high foot traffic during winter frosting
Why stay off?
Reblogged from “The Spruce“
When a lawn is frosted, the grass blades are literally frozen. Any activity on the lawn while it is frosty, like walking on it, will “break” the grass blade and damage the lawn. It will recover eventually, but it may not fully bounce back until the following Spring.
Scientifically, when a heavy object presses down onto the blades, the expanded water molecules slice through the grass and cause significant cellular damage. You notice impact damage after passing across the surface—the blades often produce a white or beige hue from being crushed along with the icy frost.
On a frosty morning at a golf course, nobody moves until the superintendent determines the course frost free. The frost dissipates as the sun rises and the air warms up. Sprinklers are sometimes turned on for 30 seconds or so to speed up the process, especially in the shade.
For a homeowner, deliveries, mail-persons, or children are usually responsible for unwittingly damaging the lawn.