Most of the year, the lawns out past Fisher's Landing and Cascade Park are the whole story for Vancouver Grass Experts, wide green squares laid out in the cul-de-sacs of neighborhoods that used to be orchard ground before the houses came. Then, on the rare morning the Cascades send down real cold and the grass goes stiff and white, the same crew that mows those yards all summer switches trucks and starts plowing the same driveways instead. It happens only a handful of times most winters, which is exactly why neighbors notice: a school-morning driveway cleared before the bus comes, a cul-de-sac opened up before anyone else on the street is out with a shovel. The company knows these streets by their grass, which turns out to be useful knowledge when the ground freezes too, since a mower who has walked every yard on a block already knows where the low spots pool and ice first. It is a short season's work, done by people who spend the rest of the year on the same lawns.