ArbNet.org

The Morton Register of Arboreta is a comprehensive list and database of arboreta and other public gardens that have a substantial focus on woody plants. The purpose of the Morton Register is to identify all of the organizations that collect and display trees, shrubs, and other woody plants for the benefit of the public, science, and conservation.

Any identified or named arboretum, or a public garden with a significant focus on woody plants, may be listed on the Morton Register of Arboreta. All known arboreta in the U.S. are listed, and others will be added to the register when identified. Early emphasis has been placed on named arboreta in the United States, but arboreta from other countries will now be added, together with other tree-focused public gardens.

Accreditation is available for arboreta through the Morton Register of Arboreta. Arboreta are accredited at different levels depending on degrees of development, capacity, and professionalism. Please see Arboretum Accreditation under Resources.  View the ArbNet Arboretum Accreditation Program brochure here.

View current list of Accredited Arboreta.

The Morton Register is sponsored and coordinated by The Morton Arboretum (www.mortonarb.org).

Use the alphabetical guide below to find arboreta geographically, by state or country. You can also view the full Morton Register of Arboreta.

State:PA