The old oaks above Washington Valley shade half of Bridgewater's lawns and, come October, bury the other half. Plant Solutions Tree & Lawn Care works around them all year — mowing, trimming and edging where the light gets through, feeding thin shade turf, and clearing the leaf fall before it can mat down and smother the grass. When winter arrives the same trucks turn to plowing, clearing walks and steps, and salting the shaded stretches that never see midday sun. Air near the reservoir runs colder than the rest of town, and the ice lingers there because of it. In either season the aim is the same: a property that is easy and safe to walk across.