Bayard Lane in September runs beneath copper beeches older than most of the houses under them, and the lawns there begin their best six weeks of the year. Ortiz Landscaping & Tree Services works that turn: mowing and trimming while the grass is putting on growth again, edging beds back to a firm line, then cleanups as the canopy starts letting go. Shade lawns near Constitution Hill ask for patience more than power. Autumn is when a year of care finally shows itself, and it shows in the color. Princeton, Hopewell, Pennington, Lawrenceville and Skillman fall inside the working radius.