The old trees in Greeley Park set the tone for Nashua's north end — big canopies, deep shade, lawns that need a patient hand. Bentley's Greenscapes works those streets in both directions of the year: mowing, trimming and edging through the growing months, cleanups when the maples give it all up in October, then plowing and walkway clearing once the Merrimack starts steaming in the cold. A shaded lawn grows unevenly and a shaded driveway holds ice longer, and the job is knowing both. The area spans Nashua and nearby Hudson, Merrimack, Amherst and Litchfield. Either season, the aim is a property that looks looked-after.