The 2018 Nashville Lawn and Garden Show has brought nationally recognized author, PBS correspondent and gardening expert Brie Arthur to town as its featured speaker at this year’s show, March 1-4 at The Fairgrounds Nashville, where Arthur will present “Perennial Combinations in the Foodscape Revolution” on Saturday, March 3, at 1 p.m. and “Foodscape Revolution Simplified” on Sunday, March 4,