The Arboretum

As Arizona's oldest and largest botanical garden, Boyce Thompson Arboretum State Park is the place to discover the intricate beauty of desert plants from around the world.

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The Gardens

Sheer mountain cliffs, a streamside forest, panoramic vistas, natural habitats with varied wildlife, a hidden canyon, and more await you in the park's specialty gardens.

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Programs & Events

Guided Walk on the Main Trail

Every day in March   11:00 am

Arizona State Parks volunteers narrate arboretum history and point out colorful plants and birds plus seasonal changes on these daily guided walking tours.  READ MORE

Mary Isham Watercolor Exhibit

Every Day in March   8am - 5pm

All month Boyce Thompson Arboretum will exhibit the works of painter and fabric artist Mary Isham. Come see her work which celebrates color in all flora and fauna.  READ MORE

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Arboretum Hours

Last admission one hour prior to closing

October – April
8:00am - 5:00pm

May – September
6:00am - 3:00pm

Arboretum Entrance Fee

Adult (13+): $12.50
Child (5-12): $5.00
Age 4 & Under: FREE