The Arboretum at Flagstaff was founded by Frances McAllister in 1981 as a private nonprofit organization under the official name “The Transition Zone Horticultural Institute.” While research was the original primary focus, over the years it has become known as a destination for local and out-of-town visitors who want to learn more about the native plants and animals found in northern Arizona, and as a wonderful venue for a wide variety of events and educational programs.

Mission

The Arboretum at Flagstaffs mission is to increase the understanding, appreciation, and conservation of plants and plant communities native to the Colorado Plateau. We strive to:

  • Identify, evaluate, display, and introduce plants adaptable to the climatic and soil conditions of the Flagstaff environment
  • Seek through scientific research innovative solutions to conservation issues of this high altitude environment
  • Develop educational programs that increase the understanding of the need for wise stewardship of our natural environment.

Opening Hours

Monday

9 AM – 5 PM

Tuesday

-

Wednesday

9 AM – 5 PM

Thursday

9 AM – 5 PM

Friday

9 AM – 5 PM

Saturday

9 AM – 5 PM

Sunday

9 AM – 5 PM

Visit us during open season, April 15 through October 31. The Arboretum is closed November 1 through April 14.

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