Boyce Thompson Arboretum State Park in Superior, Arizona is a favourite place to see and learn about desert plants
Located three miles west of Superior, Arizona in Queen Creek Canyon, Boyce Thompson Arboretum State Park is one of my favourite places to see and learn about desert plants. The park features plants from the Arizona desert and deserts around the world. The natural setting with a mountainous backdrop makes for a pleasant and beautiful walk.
The Arboretum is Arizona’s oldest and largest botanical garden. It was founded by mining magnate Col. William Boyce Thompson in the 1920s to promote understanding of plant-people relationships in the arid and semi-arid regions of the world. In 1976, the Arizona State Parks Board entered into an agreement with the Boyce Thompson Arobretum and the University of Arizona to cooperatively manage the Arboretum.
The Arboretum offers daily guided walking tours and special seasonal tours and workshops. Or you can choose to walk through the park on your own at your leisure. Plaques identifying plants and their origins are prevalent. Information about the desert plant life and park maintenance is found on boards throughout the park.


Prickly pear juice has been used to treat adult-onset diabetes and urinary tract inflammation. The inner flesh of the pads help with external inflammations such as burns. The dried flowers are high in flavanoids.

Creosote bush leaves have been added to capsules to treat bacterial and viral infections, bladder infections, arthritis, and intestinal disorders. Flower buds pickled in vinegar are a choice food items in some parts of Mexico.
The Hummingbird & Butterfly Garden features plants known to attract hummingbirds and butterflies and is a favourite section of the park for photographers. But birds and butterflies are not limited to this section of the Arboretum. I heard and saw birds throughout my walk around the park. I spotted butterflies in several areas.

The endangered Arizona Hedgehog Cactus
The Main Trail is one and a half miles long. The High Trail provides another half a mile to explore. About half of the Main Trail is wheelchair accessible. The Upper Sonoran and South American exhibits are not wheelchair accessible. The Upper Sonoran Natural Exhibit trail is steep at times but offers great views.

Eucalyptus trees in Australian Exhibit
The Arobertum protects biodiversity by sustaining wild habitats along Silver King Wash and Queen Creek and in upland locations. Staff carefully monitor each new plant in the non-native collections to prevent spread into wild areas.

There are many places to sit, rest and enjoy the scenery

Rock labyrinth

Cacti blooms

Mexican poppies
The plants at Boyce Thompson Arboretum change with the seasons. There are treasures to be enjoyed no matter the season. I’ve visited in March when wildflowers were brilliant, in April when cacti were blooming, and in November when there were fall colours. Other times are prime times for birds, butterflies, dragonflies and lizards.
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