October around Crystal Lake is Newton at its most theatrical, the water going slate and the maples of Newton Centre dropping color onto lawns faster than anyone can keep up. Cullins Service Landscaping, Inc. keeps up: leaf work and end-of-year clearing, the last mows, edges tidied before the ground hardens. Then the calendar flips and those same properties want plowing, walks cleared by hand, steps opened, entries salted at first light. Between them sits the April reset, the recut edge, the first green cut of the year. The city changes costume four times over, and the trick is being ready each time it does.