Greenlawn keeps its old farm bones under the shade trees — the flat ground that once grew pickles and potatoes now grows lawns, and the breeze off the Sound still slides down over Centerport on a summer afternoon. Prestige Lawn Care handles mowing, edging and trimming on the blocks off Broadway, where properties sit close together and every border is on display. Cleanups come in spring, and again in November when the oaks finally let go. The work is quiet by nature: a mower running in the middle of a weekday, a yard that looks settled by the time the evening train lets out. Neat is its own kind of welcome.