Down at Amerson River Park the boardwalks run out into green so thick it hums, and a Macon summer asks a great deal of a yard. Creative Outdoor Services takes that on with mowing, edging, trimming and cleanup, week after week, so the grass keeps its shape instead of running wild. There is real pleasure in the moment a shaggy lot turns back into a lawn — the border found again, the clippings gone, the driveway swept. Shrubs stop crowding the walk; the trimmer follows every corner a mower has to skip. July grows fast in middle Georgia, and someone has to keep up with it.