At the four corners of Shrewsbury the white clapboard and the old burying ground have watched a couple of centuries of summers go by, and at noon in July the cicadas make the whole town hum. Greenline Outdoors mows through that heat — early starts, long straight passes, the machine shut off in the shade while the water bottle goes around. Lawn care in a town this old means working around roots and stone and beds that were planted before anyone living was born. Done well, a cut lawn frames all of it: the porch, the picket line of the fence, the shade pooling under the maples. Nothing showy, just a yard that looks right every week.