Amazon_Spheres
The Urban Arboretum
The Urban Arboretum, maintained by Amazon Horticulture, provides Amazonians and community members a connection to nature in the center of Seattle's urban core. As you walk through Amazon's Puget Sound headquarters, we invite you to experience this urban botanical garden, which reflects the diverse plant palette represented within The Spheres.

Frontier Entrance

Amazon Frontier building entrance

The Frontier landscape was our final significant addition to Amazon’s Urban Arboretum. As its name suggests, the Frontier landscape embraces a West Coast Cascadia theme, inspired by the American Frontier and the Wild West.

In this landscape, you will find dwarf Oregon grape (Mahonia nervosa), evergreen huckleberry (Vaccinium ovatum), sword ferns (Polystichum munitum), meadow checkermallow (Sidalcea campestris), and white oaks (Quercus garryana), all species native to the Pacific Northwest. Native sedge meadow plantings around the building provide valuable urban habitat for native pollinators.

What to see at the Frontier Entrance
Frontier pathway
The planter beds along the building entrance and bike path were some of the last to be installed by Amazon Horticulture.
Planters at Frontier
The planters contain many species that typically spread along the forest floor. Which do you recognize from other stops along the Urban Arboretum?
Species at Frontier
Polystichum munitum
Commonly called the Western sword fern. This evergreen species is abundant in forested areas along the Pacific Coast. It prefers low altitude, high moisture, and cool temperatures.

Click on a photo to learn about the plants that live at Amazon Frontier.

Ready for more? As you walk toward the crosswalk at Bell Street, look across 7th Avenue and up. On top of the Nitro South building you can make out the Prairie Roof!

Up Next: Bell Street

Continue your tour of the Urban Arboretum