Just east of Smyrna the ground falls away toward the Chattahoochee, where morning fog settles in the bottoms and burns off slowly up the bluffs. Vinings Landscape Group tends the properties along that rise — mowing and edging on rotation, mulching beds, shaping hedges, clearing whatever the hardwoods and the river wind bring down. Sloped lots and mature trees make for finicky turf, which is exactly the part worth doing carefully. The measure is a lawn that looks even from the street and a bed line that does not wander. It is a handsome corner of Georgia, and it repays the attention it is given.