Portland Arbor Day

Volunteers gather around the Tree City USA flag following the tree planting at East Holladay Park, Arbor Day 2019.
Portland has been celebrating Arbor Day since 1889 - bringing communities together to recognize the importance and value of trees. The trees of our city provide essential services - making a healthier and more equitable place to live for all Portlanders.
On this page

Portland Arbor Day 2022

A tiny fresh human learns to plant a tree.

Thank you to all of those who joined us at Glenwood Park to celebrate Portland Arbor Day! 

Photos from the 2022 celebration!

Portland Celebrates Arbor Day in October

Due to our changing climate, Portland’s hot dry summers have made it more difficult for trees planted in April to succeed. By moving Arbor Day to October, we can plant new trees and take advantage of our nice wet winter months to help them get established. We are excited about this change and to provide an opportunity to work with Portlanders to plant new trees and give them the best opportunity to thrive.

Learn about the Bill Naito Award

Learn about trees and the urban forest

Learn about Arbor Day

Volunteer for the Environment

Learn more about local organizations you can be involved with to help further the reach to our community. 

Check out the List

About Portland Parks & Recreation UrbanForestry

Close-up image of the cone of a Douglas-fir tree.

The mission of PP&R’s Urban Forestry (UF) division is to manage and care for Portland's tree infrastructure in the City for current and future generations. Portland’s urban forest consists of 220,000 street trees, 1.2 million park trees, and innumerable private property trees. The Urban Forestry division is involved in managing or regulating these trees. UF created and implements the City of Portland's Urban Forest Management Plan, fosters community tree awareness and stewardship, develops tree policies and programs, monitors and assesses Portland’s urban forest, and issues permits for planting, pruning, and removal of public and some private trees. During extreme weather at all times of the year, UF crews respond to tree emergencies to keep you safe and the City moving.

For more information on Urban Forestry at portland.gov/trees.


News and notices


Past Events

Portland Arbor Day 2022

Community Event

Portland Arbor Day 2021

Community Event