There is an hour in June when Peabody Square turns gold and the whole city smells like cut grass. Nick's Landscaping of Peabody works into that light — mowing, string-trimming the awkward corners around fence posts and hydrants, edging the walk so the line between green and concrete is honest. By the time the evening crowd drifts toward the bandstand at Emerson Park, the yards on the side streets are striped and quiet. Winter turns the same crew toward plow routes and shovels, driveways opened and walkways salted while it is still dark out. Same city, different season, the same care in how a place is left behind.