By late October the maples along the Ten Mile River have let go, and every lawn in Fairlawn is wearing somebody else's leaves. Greenscape Landscaping spends those weeks on cleanups — raking, blowing, clearing the beds and the fence lines, then taking the last cut of the year low and even. All summer before that it is mowing, edging and trimming on a rhythm the grass can count on. A Pawtucket yard put to bed right in November comes back easier in April. The crew likes knowing that; it makes the cold work feel a little like planting.