The arboretum was established in 1928 specifically to conserve endangered tree species and facilitate scientific research.
It maintains one of the largest collections of conifers in the United States.
The Redwood Deck overlooks a grove of sequoia and redwood trees that are significantly younger than the surrounding native forest.
The arboretum features a specialized collection of maples and magnolias that offer significant seasonal color variations.
The site acts as a major ecological corridor connecting to the larger Forest Park ecosystem.
The arboretum manages its collections according to the North American Plant Collections Consortium standards.
Some trees in the arboretum are part of the original 1928 planting, providing a century of longitudinal data.
Hoyt Arboretum is a 190-acre living museum dedicated to the global collection of trees and shrubs within Portland's Washington Park. It houses over 2,300 species of trees and shrubs from every continent, organized into taxonomic collections and geographical groupings. The arboretum features 12 miles of hiking trails that intersect with the wider Washington Park trail system. Its landscape is characterized by a mix of native Douglas fir forests and curated non-native specimens. The facility functions as an educational research site for arboriculture and forest ecology. Elevation ranges from 500 to 800 feet, creating varied microclimates for the botanical collections. It serves as a primary site for the conservation of endangered tree species. The grounds are maintained to preserve natural habitats while providing public accessibility through marked paths.
The Redwood Deck for panoramic views of towering sequoias.
Download the digital trail map before arrival, as cell service can be spotty in the forested ravines.
Check the 'What's Blooming' guide on the official website if you are visiting for specific seasonal colors.
Wear sturdy, waterproof hiking shoes as trails can remain muddy long after rainfall.
Do not attempt to hike the entire 12-mile trail network in a single session without adequate water and supplies.
The visitor center may have limited operations on certain holidays; grounds are typically open daily.
Stay on marked trails to protect sensitive root systems, keep dogs leashed, and practice leave-no-trace principles.
