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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2018 Arborists in the Arboretum Volunteers


Thank you to everyone who helped make this year's Arborists in the Arboretum a success!


On Saturday, September 8, Hoyt Arboretum Friends hosted Arborists in the Arboretum, where professional arborists from the Portland metro area and beyond volunteer their time and expertise to care for Hoyt Arboretum's trees.

This year, 98 arborists representing 36 companies volunteered for Arborists in the Arboretum. We want to express our sincere thanks to the generous arborists who keep Hoyt Arboretum growing year after year!


See photos from the 31st Annual Arborists in the Arboretum


Thank you to our event sponsors:

Doug Fir
Bartlett Tree Experts

General Tree Service
Oregon Tree Care
Teragan & Associates, Inc. 

Overlook Tree Preservation

Sizzle Pie

Buoy Brewing 


Participating Companies / Organizations:

AAA Tree Service
AKS Engineering & Forestry
Arbor Care Inc
Arborist Robert Bundy LLC
Arborscape Ltd. Inc.
Bartlett Tree Experts
Canadensis Tree
Davey Tree
Emerald Tree
Emergent Tree Works
Ethos Tree Preservation
For the Love of Trees
Foster Trees
Foxy Tree Care
Fruitful Tree Care
General Tree Service
Hedgehog Tree Care
Honl Tree Care
Integrity Tree Care
Madrone Modern
Marble Tree Service
Monkey Puzzle Tree Care
Northridge Tree
Oregon Tree Care
Overlook Tree Preservation
PDX Tree Services, Inc.
Plogs Landscape Design
Roots and Shoots Trees
Samsara Tree Care
Tree Masters
Tree People LLC
Tree Style Arbor Care LLC
Urban Forest Pro
Urban Timber 



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 arborist 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 7, 2018 from 8 AM until 12 PM.