Portsmouth sits at the top of Aquidneck Island with salt wind off the Sakonnet on one side and Narragansett Bay on the other, and the grass here grows in that steady maritime damp. Richards Lawn and Landscape mows into it — cutting, trimming, edging and cleaning up on lawns that run between old stone walls and hedgerows, from the Glen Farm fields out toward the water. Island turf is generous in June and stubborn in August, and reading which is which is most of the job. A lawn finished properly out here looks like it belongs to the field beyond it, only combed. That's the result worth chasing every visit, with the bridge lights coming on behind you.