By seven on a June evening the shadow of Hook Mountain reaches out over the flats and Pine Brook cools all at once. That is the hour D'Agosto Landscaping Inc. likes best: mowing finished, the trimmer quiet, cut grass still hanging in the air of the yard. The week is built from mowing, edging, hedge and shrub trimming, mulch, and cleanups at the shoulders of the year, house by house, street by street. Work this close to Route 46 has to be tidy, because a lawn is the one thing on the block that answers back to all that motion. Done right, a yard here feels like a held breath between the highway and the meadows.