On Memorial Day the bike racers take over Main Street and the whole town comes out to the curb, which means every front yard in Somerville gets a good long look. MGK Lawn Pros spends the weeks before it doing what makes a yard hold up to that: mowing on schedule, trimming close to the fence line, edges cut straight along the sidewalk. The rest of the year is the same discipline without the crowd. Spring cleanups open the season and fall cleanups close it out. A lawn kept this way never needs rescuing; it just keeps looking the way it did last week.