Microsoft CrowdStrike technology outage

Beware of cyber criminals impersonating CrowdStrike or other tech support. Information for City of Portland employees

Recorded Webinars

Participants in an Urban Forestry workshop share their project with others.
Urban Forestry hosts community workshops on a wide variety of tree topics, and stewardship events to activate learning. Our workshops are a great place to build on your existing tree knowledge and skills or to take your first steps into the world of tree care and Urban Forestry stewardship.
On this page

Recorded Webinars

Are you looking to freshen up on skills? Did you miss a recent workshop but still want to learn about trees in Portland? Urban Forestry has recorded and collected our presentations to share with you!

Heritage Trees of Portland

Threats to Urban Trees - Pests, Pathogens, and Drought

Your Tree, Right Place  -  Presentation Worksheet

Introduction to Tree Pruning

Introduction to Tree Pruning

Learn about the goals of young tree pruning, how to get a permit if required, what tools and safety materials are needed and how and where to make proper pruning cuts. This course will introduce you to new language and words used by arborists. Be sure to download the Presentation Worksheet before watching!

Advanced Pruning

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. This course will introduce you to new language and words used by arborists. Be sure to download the Presentation Worksheet before watching!

Tree Walks

How to Build a Tree Walk using the Tree Inventory Project

You can make your own tree walk anywhere in Portland using the Tree Inventory Project webmap.

Explore your parks and neighborhood streets visiting trees with tantalizing traits, curious characteristics and bewildering bark.

Watch the video to learn how to use this online tool to create a tree walk.

Read the full Tree Walk Planning Guide to get started. 

Use this guideto plan out and share your tree walk.

Sign up to host a tree walk!

Themed Tree Walk Guides

Who will you see on your Trick or Tree Walk?

Trick-or-Tree Walk

Throw on your costumes for a Trick-or-Tree Walk! Create a hair-raising route to share with friends and neighbors!

This do-it-yourself tree walk will take you to see all of the trick-or-trees in your neighborhood – gnarled branches, whispering willows, and haunting hawthorns are just a few you might find along the way. 

Sign up for Urban Forestry's Tree Bark Newsletter

Sign up for Urban Forestry's e-newsletter, TreeBark, to receive updates straight to your inbox!   

Learn About Tree Care

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

Past Events

Local Tree Care Providers Workshop

Classes and Activities