Like artists working with a palette of stone, soil, and greenery, teams from S.A.T. Landscape Services paint elaborate stone patios and blossom-laden plots. Members of the Ohio Nursery & Landscape Association, the workers install water fountains, or deliver gravel to driveways or the sides of balding mountains. With gloved hands they wield products such as Mr. Mulch and Oberfield’s concrete, and take on tasks such as mulching, edging, and pruning shrubs. Besides keeping lawns mowed, aerated, and sculpted, they also arrange aesthetically pleasing landscape lighting, lay sod, and seed yards.