Milton sits on granite — you find it in the ledge along Chickatawbut Road, in the old walls running through the woods, in the front steps of half the houses in town. Rota Landscape Construction LLC works with that ground rather than against it, keeping lawns mowed, trimmed and edged through the growing months and clearing snow off drives and walks when the hills ice over. April is the best hour of the year here: the ledge sweating, the moss going green, the first cut laid down over ground that has been waiting since November. Winter's reward is plainer and colder — a drive opened wide, a walk taken down to bare pavement, salt where the shade holds frost.