Hoyt Arboretum, Arboretum in Washington Park, Portland, United States.

Hoyt Arboretum is a woodland garden in Portland featuring trees and plants collected from different parts of the world. The grounds are crisscrossed with walking trails that wind through forested ridges and pass by carefully arranged plant groups.

The hilly land was granted to pioneers under the Donation Land Claim Act of 1850, but the homesteads failed and by 1865 Multnomah County owned it. After an 1889 forest fire, part became the Multnomah County Poor Farm Hillside Farm. The county sold the land to Portland in 1922, and the city created the arboretum in 1930, planting it to John W. Duncan's plan from 1931 to 1944.

This botanical garden brings together trees from around the world to show visitors how diverse forests can be. Walking through its collections helps people understand the importance of different tree species and why they matter to our environment.

The walking trails are accessible on foot, and visitors will find directional markers at various points. It is wise to wear good shoes and set aside enough time for exploration, as the paths wind through slopes of varying steepness.

The dawn redwood at Hoyt was among the first sent to the Western Hemisphere after the species was rediscovered in Hubei, China, in 1944. In fall 1952 it became the first dawn redwood in the Americas to produce cones in about 6 million years.