By mid-March the woods along Wilson Creek begin to leaf out, and a first green haze creeps across the dormant lawns of the McKinney neighborhoods nearby. Spring Green does lawn care in a city that waits all winter for that change, when Bermuda and St. Augustine stir from their tan sleep and the streets start to look alive again. Cardinals whistle from the hackberries while robins work the softening turf. A lawn looked after through that turning point fills in thick and even before the summer heat arrives. Watching a yard deepen in color week after week, right outside the window, is one of spring's small gifts.