• Register now for the 2013 Docent Training program beginning March 5! Learn more... Check out other 2013 programs on our events page
• Thank you to all who contributed to our Challenge Grant! We received matching funds of $25,000 to help support our education programs.
• Thank you for your support during another great season in 2012!  We are closed for the winter and will open for our Arbor Day festival on April 27, 2013.  Extension 101 (Operator) will not be an active line throughout our off season. Please connect to a staff member through the automated system.  Staff hours vary in the winter, however, voice mail messages will be checked regularly and your call will be returned. Happy winter!
• Register Now for 2013 Field Trip Leader Training beginning April 3rd!

Sign up for our e-mail list.

Find out what’s happening at The Arboretum.

Welcome to The Arboretum at Flagstaff

Open to the public from May through October, The Arboretum at Flagstaff is located on 200 acres within the Coconino National Forest.  A research and environmental education center, the Arboretum is home to 2,500 species of plants in greenhouses, gardens, and natural habitats. 

The Arboretum encompasses horticultural collections, rare plant specimens, historic buildings, and a nature trail through the Ponderosa pine forest. 

Founded in 1981 with a mission to increase the understanding, appreciation, and conservation of plants and plant communities native to the Colorado Plateau, The Arboretum offers guided tours, school programs, and other events.

Ar-bo-re-tum: A place where trees, shrubs, and herbaceous plants are cultivated for scientific and educational purposes.