Rain moves through this township in the spring the way it always has, coming up the valley in the afternoon and leaving the small runs — Frya Run and the rest — talking to themselves under the road bridges. Welsh Lawn Care measures the season by how fast the grass answers that rain, and by the last hour of daylight, when a finished lawn goes deep green and every edge stands out clean. The work is mowing, trimming and edging, kept on a rhythm close enough that no cut ever has to fight the yard. Cleanups bracket the year — the winter's litter cleared off in March, the beds and borders put back in order come November. On the old lanes off Chestnut Hill, where houses sit well back and the lawns run long to the road, that steady attention is what keeps a place looking cared for from the mailbox in.