The Rock River runs along the west side of everything here, and the cottonwoods on its banks keep the air soft and green deep into July. Solis Pros Lawn care mows the yards on that side of Harlem, trims around posts and bed edges, and runs a clean line where lawn meets pavement. River-bottom ground grows hard and fast in a wet summer, so the rotation is never allowed to slide. Standing back from a finished yard at midday, everything cut to one honest height, is a plain good feeling that doesn't wear off. Harlem and the towns nearby, every week of the season.