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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Scientists and Students

Erin_Herbarium.jpgDid you know that Hoyt Arboretum houses a collection of more than 6,000 trees and plants representing over 2,000 species and more than 600 cultivars from around the world? This collection is very accessible to scientists, students and others involved in research and study since Hoyt Arboretum is located just two miles west of downtown Portland.

Hoyt Arboretum’s collection is planted in taxonomic families in accordance with a master plan and are grown from seeds collected in the wild.  Specimens within each collection are labeled so that visitors can find individual trees using the Plant Inventory Guide available on our website or at the Visitor Center.

A library of over 800 horticultural books and periodicals in the Bill deWeese classroom is open to the public during Visitor Center hours.       

Hoyt Arboretum provides a living classroom for students and teachers.

To enhance the learning that can take place in this global garden, a variety of educational and self-guided-walk brochures are available at the Hoyt Arboretum Visitor Center at all times. Volunteers staff the Visitor Center and are there to answer questions and help interpret the arboretum for the public during Visitor Center hours. 

The Hoyt Arboretum Plant Inventory Guide is a free resource available on our website oraat the Visitor Center. Students, scientists and visitors can use the resource library in the Bill deWeese classroom during Visitor Center hours as well. 

In addition, children's programs and classes and other opportunities for learning are offered each year.