There is a particular pleasure in the last pass of the mower, when the whole lawn lies in even bands and the edge along the walk comes up clean as a drawn line. McCormick Lawn & Living tends yards to that finish across Grafton, where the Blackstone slips past old mill villages and stone walls climb the drumlin hills out of the valley. Through the green months the crew keeps the grass cut and trimmed, the beds turned over with fresh mulch, and autumn's leaves gathered before the first hard frost takes the ground. When winter whitens the roads they are out ahead of the light, plowing drives and clearing walks, so a Grafton morning opens onto bare pavement and an easy way down toward the common.