Tennessee Code Title 54. Highways, Bridges and Ferries § 54-5-1202

(1) Develop a permanent roadside landscaping program within the department of transportation with emphasis on wildflower preservation and propagation;

(2) Beautify the state's roadways and enhance the aesthetics of the state's highway system while reducing maintenance costs; and

(3) Make the public more aware of the state's landscape diversity and improve environmental quality along the roadways.