Out at Bristol Woods the old oaks stand far apart the way savanna oaks do, and in April the ground beneath them greens up before anything else in the county. Ceisel Landscaping Design Inc. carries a little of that patience into the yards it tends around the village — mowing on a steady rhythm, beds edged clean, shrubs shaped so a house looks settled in its own ground. Fertilizing and weed control run through the warm months; mulch goes down in spring and the leaves come up in November. The aim is a lawn that looks composed rather than fussed over, with a crisp line where turf meets bed. Bristol rewards that kind of restraint.