Walking through the arboretum

Hoyt Arboretum Friends (HAF) is a membership-based, nonprofit organization working in partnership with Portland Parks and Recreation to support Hoyt Arboretum.

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About Hoyt Arboretum

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Hoyt Arboretum is a living laboratory where scientists and students can study trees and plants that would not otherwise grow in our climate and habitat. Features at the arboretum include:

  • A unique collection of trees and plants from around the world
  • A living laboratory for preservation and research
  • A vital resource for conserving plant biodiversity
  • A peaceful urban oasis
  • A 187-acre refuge with 12 miles of hiking trails
  • A promise to future generations

At Hoyt Arboretum, every tree has a story to tell. Tree collections are organized by taxonomy (plant families) and geography. Identification labels help you to learn about trees that catch your interest.

The Hoyt Collection includes more than 1,400 true species, with specimens grown from seeds collected in the wild. These plants produce seeds that can be used to replant native ecosystems that have been destroyed or are at risk.

An arboretum is a promise to future generations. Just as we are enjoying mature, wonderful trees that were planted many years ago, the trees we plant today will grow to provide shade, beauty and value for decades and centuries to come.

Hoyt Arboretum Friends
Mission Statement

To maintain and improve Hoyt Arboretum and its collection for all people through advocacy, resources, awareness and education.

Support Hoyt Arboretum by becoming a member