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The City of Portland, Oregon

Portland, Oregon

Welcome to the official web site of the City of Portland, Oregon

General Information: 503-823-4000


1221 SW 4th Avenue, Room 110, Portland, OR 97204

More Contact Info

Event: Advanced Tree Pruning

Many arborists will tell you that pruning is both a science and an art; the art of making a proper cut matched with an understanding of the tree’s biology and mechanics. Learning how trees grow and how they respond to various pruning cuts will help you master common pruning techniques. Urban Forestry staff will host an online Advanced Tree Pruning class on June 3, 2020; prior participation in an introductory pruning class is recommended (recording of Introduction to Pruning available on YouTube). Topics to be covered will include tree biology and how they grow, tree mechanics, and how trees seal (not heal) wounds.

Please register for this event. Details on how to participate in this Zoom presentation will be sent by email.

Wednesday, June 3, 2020
11:00am - 12:00pm 

The workshop will begin promptly at 11:00am with the presentation followed by a question and answer period.

Portland Parks & Recreation Urban Forestry's mission is to manage and ensure Portland's urban forest infrastructure for current and future generations. Portland’s urban forest consists of 236,000 street trees, 1.2 million park trees, and innumerable private property trees. Urban Forestry is involved in managing or regulating all of these trees to differing degrees. Urban Forestry staff issue permits for planting, pruning, and removal of all public and some private trees and are on call 24/7 to respond to tree emergencies.

For more information on Urban Forestry, please visit