Lake Oliver goes flat and silver on a Saturday evening, and the neighborhoods off Blackmon Road settle into the smell of cut grass. Columbus Lawn Pros works the north side with mowing, edging and string trimming, finishing every stop by clearing the drive and the front walk. Dogwood winter can fool a yard in April, but the growing season here is long and honest and it asks for a schedule. Held to one, a lawn looks the same sharp way every single week. Homeowners get their weekend back in the bargain.