Under the sod of Bremen Township lies some of the blackest ground in Illinois, old prairie soil that will grow anything you ask of it. Francisco's Lawncare Inc works that advantage as the year opens — mowing, edging, seeding and clearing out what the winter left behind. There is a week in April when a lawn changes color almost overnight, and that first cut smells like the whole season arriving at once. Trimming tight along walks and fences is what turns a mowed yard into a finished one. The blocks running toward Midlothian and Country Club Hills are full of small lots that look twice their size once the lines are right.