Manhattan grows its green in small allotments — a tree pit at the curb, a strip of lawn behind an iron fence, a courtyard the size of a rug. Discount Tree Cutting Company in Manhattan works those narrow pieces, where the light arrives late over the rooflines and leaves early. Spring shows up first down in the pits along the avenues, and the job is to keep what grows there open, shaped and fitted to the space it has. Mowing, edging and hand-trimming on ground measured in feet rather than acres asks for a lighter touch and a straighter line. When the last cuttings are swept off the sidewalk and the edge runs true against the concrete, a whole block simply looks looked-after.