The old rail line still runs straight through Sparks, and in spring the right-of-way greens up well before the yards do. Spark Landscaping takes it from there — mowing, edging, trimming, mulching beds and cleaning up once the growing season starts in earnest. March in Cook County turns warm early and rains often, so the first cuts arrive sooner than most folks expect. Getting a lawn shaped before the real heat gives it a fighting chance through July. There is pride in an edge so clean it looks drawn, from the sidewalk all the way to the drive.