August in South Hingham is heavy and green, the air over Accord Pond barely moving until the afternoon breeze finally shows up. Prime Property Care LLC works straight through the hot part of it — mowing at a height the turf can hold through a dry spell, trimming close around posts and beds, blowing the walks clean before the truck pulls out. Lawns near the pond stay lush late into the summer; the ones out toward Queen Anne's Corner take more coaxing, and get it. Fertilizing, seeding and cleanups fill the shoulder weeks on either side of the season. The goal is a property that looks tended rather than fussed over.