Wellesley Hills earns its name honestly, with ledge close under the grass, streets bending around outcrops, and Longfellow Pond sitting in a hollow of oaks. Earle B Mosher Inc mows and maintains lawns on that uneven ground, where a slope wants a different cut than a flat and shade wants a different plan than sun. Trimming, bed care, and cleanups fill out the calendar, spring's matted thatch at one end and autumn's long leaf work at the other. Grass on a hillside shows every stripe, so the passes get laid deliberately, back and forth, until they read straight from the street. A difficult yard done well gives more satisfaction than an easy one ever will.