By midsummer noon in Troper the light comes down hard and a lawn tells the truth about itself: thin spots pale out, thick turf holds its color, and the shade under an old oak stays cool and dense. Healthy Lawns, Inc. works with what's happening below the surface as much as above it — mowing at a height that protects the roots, keeping blades sharp so the cut heals instead of frays, feeding and treating turf so it can carry itself through the heat. The trimming and edging finish the picture, but the thickness is the real result. A lawn built to be dense crowds out most of its own problems. Green that lasts is grown, not painted on.