Calahan Park fills up on a summer evening and the grass takes all of it — ballgames, blankets, dogs — and comes back green by the weekend. The Green Side chases that same look on Burlington yards: regular mowing, trimming along fences and foundations, edged walks, fresh mulch in the beds, and a thorough raking out in the fall. A lawn in the Champlain Valley wants steady attention more than anything else, particularly through the dry weeks of August. The reward is obvious from the street and better underfoot. Grass you would sit down on without thinking twice.