March in Pearl River belongs to the parade — bagpipes down Main Street, curbs three deep, the last gray snow shoved into the corners of the lots. Shamrock Valley Landscapes knows both sides of that month: the plowing and salting that carry Orangetown through February, and the first cleanups that open the yards for spring. Winter work is driveways cleared early and walks made safe underfoot. Warm-weather work is grass held even, edges kept, a property looking settled. The town changes color twice a year, and the trucks change over with it.