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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2015 Arborists in the Arboretum Day Volunteers

On Saturday, September 12, Hoyt Arboretum Friends hosted Arborists in the Arboretum, when professional arborists from the Portland metro area and beyond volunteer their time and expertise to care for Hoyt Arboretum's trees.

This year, more than 90 arborists representing 30 companies volunteered for Arborists in the Arboretum Day. We want to express our sincere thanks to the generous arborists who support Hoyt Arboretum!

Thank you to our event sponsors!

Oregon Tree Care
Teragan & Associates, Inc.
American Conifer Society Western Region
Collier Arbor Care, A Division of Bartlett Tree Experts
Overlook Tree Preservation 

Participating Companies / Organizations:

Ascending the Giants
Autumn Arbor Care
Bob Stewart Services
City of Portland, Urban Forestry
Collier Arbor Care, A Division of Bartlett Tree Experts
Emerald Tree
For the Love of Trees
Foster Trees
Full Circle Tree Care
General Tree Service
Hedgehog Tree Care
Honl Tree Care
Integrity Tree Care
Kanshoh Tree Preservation
Madrone Modern
Matthews Tree Care
Northridge Tree
Oregon Tree Care
Overlook Tree Preservation
Pacific Standard Tree
Peacock Tree Preservation
Portland Parks & Recreation
Pragmatic Tree Health Care
Roots and Shoots Trees
Tree People LLC
Urban Forest Pro
Ward Tree Care

How to become an Arborist Partner

If you are interested in becoming an Arborist Partner with Hoyt Arboretum please click here to visit our Arborist Partner Program Page.

Thank you for your interest!

What is Arborists in the Arboretum Day?

Once a year our arborists friends from the Portland metro area gather up their tools and swing up to Hoyt for our annual Arborists in the Arboretum Day. Each arborist spends their precious Saturday lending their experience and expertise in the careful care of our collections. We are thrilled to host this boisterous group of colleagues and are amazed at the skill and accuracy with which they do their work.

While this event is closed to only our arborist volunteers, feel free to stop by and watch them work - from a safe distance - in the collections. They will be visiting us again on Saturday, September 10, 2016 from 8am until 12pm.