Out past Jay Road toward the Boulder Reservoir the ground thaws in patches, and in April you can watch a lawn wake up unevenly, green first where the sun sat on it longest. Organo-Lawn of Boulder starts down there — treating and feeding the turf, aerating compacted ground, and overseeding the places winter took, so the green-up finishes as one sheet instead of a map. Through the season it becomes a steady turn of mowing, trimming, edging and keeping the clippings off the concrete. Cleanups come around in spring and again once the leaves are down for good. A lawn is mostly what lies underneath it, and this is work that begins there and shows on the surface.