Summer arrives late in the Saco valley and leaves early, so every green week in Bartlett counts for double. Eastern Green Inc. works that short bright stretch, mowing the intervale yards where river fog burns off by nine, trimming to the ledge and the birch, keeping bed edges clean. Fertilizing and overseeding help the turf hold its color through mountain nights that stay cool well into July. When the maples go over in September the crew turns to cleanups, clearing leaves and cutting back before the valley closes down for the year. Grass grown thick in the shadow of Attitash is a small triumph, and it shows.