By mid-July the water in Winona has gone warm enough to swim in and the grass around it grows faster than anybody planned for. Groundhog North keeps pace — mowing on a rhythm, trimming the edges where lawn runs into ledge and stone, clearing the yard in spring and again once the leaves come down. New Hampton lawns are rarely flat and almost never square; there are roots, boulders, slopes and shade, and the good ones get cut with all of that accounted for. Done right, a lawn stops being a chore and turns back into the thing you sit on in the evening. That is the entire idea.