flowering dogwood

Flowering dogwood (Cornus florida)

Sourwood (Oxydendrum arboreum) seedling

The Mississippi Embayment

trumpet honeysuckle

Trumpet honeysuckle (Lonicera sempervirens)

wild hyacinth

Wild hyacinth (Camassia scilloides) in the Arboretum Woods

Dutchman's breeches (Dicentra cucullaria) in the Bluegrass Region

Arboretum Explorer

Arboretum Explorer is a web-based database that can be accessed on your smartphone, tablet or desktop computer to "explore" the plants and learn more about The Arboretum.

To access Arboretum Explorer click http://uky.arboretumexplorer.org


  • You can locate plants by using an interactive MAP of The Arboretum grounds.
  • You can also SEARCH our database for specific plants, or choose from a list of plants under the NAMES tab. The results of this search will give you its Arboretum location, the origin and the unique nubmer that staff use to identify individual plants.
  • Under our FEATURES tab, you can find memorial benches and trees, facilities, special gardens and more. 
  • You can take a self-guided TOUR created by Arboretum staff on topics such as native trees, shrubs and Kentucky Oaks. 

The Walk Across Kentucky- CLOSED

The Walk Across Kentucky was first planted in 1991 after extensive plant collection efforts in the 1980’s, which sought to secure the botanical diversity from across the commonwealth, and cultivate it in a common location for research and conservation efforts.  The collection currently exists as a two-mile paved pathway that meanders through over 80 acres of native plantings representing the 7 physiographic regions of the state.  The collection is constantly expanding, and as of 2015 includes over 520 native species from 99 plant families.   There are 2500 trees and shrubs on the Walk Across Kentucky, showing the great diversity of woody plants found in the state.  More recently, efforts have been made to further develop the interesting ecosystems found across Kentucky, including tallgrass prairies, wetlands, savannahs, and glades.  

The Arboretum Woods Walk

The Arboretum Woods is an especially valuable part of the collection.  It is frequently cited as one of the last remaining examples of inner-bluegrass woodlands.  The Arboretum Woods includes over 60 species of trees, shrubs, grasses, and wildflowers including some ancient trees aged over 300 years.   A half-mile trail provides access through the woods, and we ask that visitors remain on the trail to preserve the forest understory.

What is The Walk Across Kentucky?