In San Antonio the greener grass waits on the far side of summer. Some October afternoon the northern sky goes slate, the wind swings around, and a blue norther knocks the edge off a heat that refused to leave. The city holds every kind of yard, from the deep-shaded lawns of the old King William houses near the river to the newer streets reaching toward Loop 1604, and The Grass Is Greener...landscape, Inc. meets that turn with mowing, edging and landscape care. Low light slants gold through the pecans, catching a fresh stripe in the turf and a bed swept clear of July's leftovers while the cedar elms start thinking about yellow. Fall here is short and generous, and a yard brought back into shape now carries that ease all the way to spring.