June through August: Open 6:00 a.m. to 12 Noon Wednesday through Monday, closed on Tuesdays.
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Boyce Thompson Arboretum’s newest garden, the Wallace Desert Garden, offers expansive views, creekside trails, and hundreds of plants brand-new to BTA!

At 13 acres and with more than 5,000 new plantings, the addition of the Wallace collection moves Boyce Thompson Arboretum into the top tier of botanical gardens around the world. The main trail is wheelchair accessible.

The Story

In 2014, the Arboretum was approached with a unique offer. Would BTA accept a donation of an entire garden’s worth of plants collected by Henry B. Wallace—the Wallace Desert Gardens collection? H.B. had filled his garden with an international palette of arid land plants—a stunning array of thousands of mature trees, shrubs, cacti and succulents. He had passed away in 2005 and his foundation was no longer able to maintain the valuable collection in Scottsdale, but they wanted to keep the collection together. At BTA the plants would get the same amount of rain as at the Scottsdale location and would have the same dew point and elevation.

Not only did BTA need to design a new garden, it had to transplant 5,870 plants. Beginning in December 2015, most of H.B.’s collection was moved 75 miles from north Scottsdale to BTA—by truck, car and semi. Logan Simpson Architects, Native Resources International, the Wallace Desert Gardens Board and staff, and Boyce Thompson Arboretum all collaborated to bring the mammoth endeavor to completion. The team developed and designed a 13-acre garden with 1.5 miles of new trails, and a bridge over Queen Creek.

Experience the Garden

Perfectly situated next to Queen Creek, the Wallace Desert Garden expertly exhibits H.B. Wallace’s collection by region. From the Yucca Forest to the Baja Loop, you’ll see plants arrayed in a natural setting along winding trails. Of the 1,223 taxa (species, cultivars, hybrids, varieties) in the garden, 861 are new to Boyce Thompson Arboretum, and 62 species are considered to be rare or endangered.

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A quiet moment with the sun. Let the gentle sway of the sunflower remind you to slow down and soak it all in. ...

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Yes, plants can get sunburned, too! ...

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Why are these desert plants behind bars? It`s not what you think. ...

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These sunflowers know how to find the light. Watch them sway and shine. Proof that even in the heat, beauty blooms. ...

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This fascinating hemiparasitic plant plays a surprising role in the desert ecosystem. ...

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Boyce Thompson Arboretum will be closed on Friday, July 4th in observance of Independence Day. We’ll reopen Saturday, July 5th from 6 AM to 12 PM. Wishing you a safe holiday! ...

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Why are bees obsessed with this tree? It’s all about the blooms. ...

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Agaves save all their energy for one epic bloom. Because for them, it’s now or never. ...

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