Plaistow sits at the very bottom edge of New Hampshire, where the Little River threads through low woods and the land opens into broad, sun-fed yards. Bill Bartlett & Son Landscaping mows and maintains those lawns, treating an ordinary June evening as reason enough to leave a place looking better than they found it. There is real satisfaction in a straight pass down a long side yard, in the trimmed line where turf meets an old stone wall, in getting the last of the maple leaves off the grass before November closes in. Spring cleanup here means coaxing a winter's worth of road sand and thatch out of ground that wants badly to grow. It is simple work to describe and hard work to do well, which is exactly why they keep at it.