Falmouth takes its weather off Casco Bay first, which is why a June morning here can begin in salt fog and end in flat sunshine. Blankenship Services works lawns across town, from the shore-side streets to the neighborhoods above the Presumpscot, with mowing, trimming, edging, leaf removal and seasonal cleanups. Salt air and thin coastal soil make their own demands on grass, and the mowing height changes with the month. There is something worth savoring in a lawn cut on the day it needed cutting — the color deepens, the borders square up, the whole yard sits taller. Then the breeze comes off the water and the clippings smell like the first day of summer.