Welcome to ArbNet, the global network of arboreta and tree-focused professionals
Learn more
Your arboretum can become accredited through ArbNet
Learn more
Explore the world’s arboreta through the Morton Register of Arboreta
Learn more
Discover online resources to develop your arboretum and advance your goals
Learn moreThe Global Arboretum Community Works Together through ArbNet
ArbNet unites arboreta, botanic gardens with woody plant collections, and tree advocates around the world in a collaborative community dedicated to advancing the planting, study, and conservation of trees. Through our accreditation program, shared resources, and professional connections, ArbNet empowers institutions of all sizes to strengthen their collections, expand their impact, and contribute to global tree conservation efforts.
Gain Recognition for the Work You Do for Trees
ArbNet shares global standards for arboreta that celebrate institutions committed to the care and conservation of their tree collections. With four levels of accreditation, the program meets arboreta where they are—whether just beginning to grow or leading in research and conservation—while providing a pathway for continual advancement and international recognition.
Explore Arboreta around the World
Search ArbNet’s Morton Register of Arboreta to explore arboreta across the globe. Learn how institutions of all sizes are advancing research, education, and stewardship of trees worldwide.
Stay Up-to-Date with News and Events
Discover the latest updates, stories, and professional opportunities from the global ArbNet community. Stay connected with news, events, and insights that celebrate and strengthen the world’s arboreta.
Resources for Arboreta
Explore practical guides, tool kits, and expert resources designed to help arboreta grow, manage their collections, and connect with one another.
Starting an Arboretum
Learn how to create a mission-driven arboretum from the ground up, with guidance on planning, collections, and governance.
Collaborations and Networks
Connect with peer institutions and conservation networks to expand your impact through shared projects and partnerships.
Grants and Funding
Discover grant programs and funding strategies to support your arboretum’s development, conservation, and outreach efforts.
Priority U.S. Trees Conservation Award Recipients Announced
Ten institutions from eight states across the United States were selected in 2025 to receive awards to support the collection, propagation, and safeguarding of priority tree taxa in ex situ conservation collections.
Featured Accredited Arboretum
La Constancia de Biocca (Level I) is a developing arboretum located in the city of Mar del Plata, Argentina. Established on the grounds of a historic family estate, its mission is to conserve plant biodiversity, promote environmental education, and strengthen the connection between people and nature.
Sign up for ArbNet’s newsletter for emerging trends and opportunities, success stories from accredited institutions, and valuable insights and resources from the broader arboretum community.
What Is an Arboretum?
Explore Arboreta around the World
ArbNet Stories
Contact ArbNet