In spring the branches of the Rancocas run tea-dark and cold through Southampton Township, and the grass along them comes up fast in that sandy Burlington County ground. Lewis' Lawn & Tree Service LLC starts mowing then and stays with it into the fall, working yards where the lawn gives way to pine and the property lines are drawn in scrub oak. The trick out here is a cut that suits the soil — not too short, watered mostly by the sky, kept even from the road to the shed. Nothing complicated, just a yard that looks looked-after every single week. It is enough to change how a house feels from the driveway.