2013 Perennial Plant of the Year Perennial Plant of the Year has chosen one of my personal favorites this year: Polygonatum odoratum Variegatum – more commonly known as Variegated Solomons Seal. Its a drought tolerant perennial for shade, with the added attraction of fragrant flowers in spring. Because it is slow spreading, it works well as an understory ground cover in woodland gardens. Combine it with Hostas for a lovely, low-maintenance foliage garden.