West of downtown the streets off Amherst Street climb a little, and the yards up there catch full afternoon sun — good for growing grass, hard on it in a dry August. Lawn Supremacy works those lawns with a steady weekly mow, close trimming around beds and mailboxes, and edging that gives the whole yard a defined line. Cleanups bracket the year, taking out what winter left and taking away what October drops. Nashua is the core of the route, with Merrimack, Amherst, Hollis and Hudson nearby. When the mower shuts off and the stripes are laid down, the lawn does the talking.