A Tree City USA, the Town of Jonesborough maintains a state certified, Level-2 arboretum, located at 101 Britt Drive, just off West Main Street. Named by the Town “Ardinna Woods”, after the Celtic deity venerated as guardian of forests in ancient times, the arboretum hosts more than seventy tree species native to the Southern Appalachian region, in two principal collections. Large and medium size trees, along Britt Drive, include such rare species as Yellowwood, Black Tupelo and Kentucky Coffeetree, as well as hickories, oaks and other, more common species. It also showcases the Restoration American Chestnut tree, bred by the American Chestnut Foundation for resistance to the virus blight that had killed all Eastern Chestnut Trees during the early decades of the last century. Small-stature trees, mostly in a bank area along Highway 81S, include the Umbrella Tree, Caroline Cherry Laurel and Carolina Buckthorn, American Smoketree, Hoptree Dogwoods and others.
Most of the arboretum choices in trees and shrubs, and its native vines and wildflowers, serve as hosts or nectar plants for eastern region butterflies, and their fruits nourish birds and other wildlife.
The site includes a butterfly garden featured in the March/April 2011 edition of The Tennessee Conservationist Magazine. The arboretum is registered and certified as Waystation 1953 under the International Monarch Waystation Program and was again featured in The Tennessee Conservationist Magazine in the May/June 2017 edition
First opened in September 2011, the arboretum was re-certified, in October 2016, by the Tennessee Urban Forestry Council.