April on Gramatan Avenue arrives all at once — one warm week and the two-family lawns wake up hungry. A Palmieri Landscaping Co meets them there with mowing, trimming, edging and the spring cleanup that hauls off whatever winter left behind in the beds. The other half of the year runs colder: plowing the drive, salting the walk, opening a path from the front steps to bare sidewalk before anybody has to think about it. Between the two seasons it is the same short blocks, the same tight aprons, the same satisfaction in a property that looks looked-after from the curb. Mount Vernon is dense and quick and full of pride, and grounds work here has to match.