March in southwest Portland smells like wet cedar, and every lawn under the Tryon Creek canopy comes out of winter wearing moss. Blessed Roots Yard Maintenance opens the year on those shaded Terwilliger blocks, raking thatch and moss out of the turf and overseeding the thin places so grass gets ahead of the rain. Mowing starts the moment the ground firms enough to hold a wheel without printing it. Edging brings a lawn's outline back after months of leaf litter and drizzle — a clean line where turf stops and the bed begins. By the first dry week the yards are green again from the root up, which is the only way it lasts.