Join us for the 36th Tree School on Saturday, March 21, 2026 at Clackamas Community College!

This year’s event will offer 72 classes to support successful management of trees and forests. Class topics include:

• forest management

• tools and techniques

• wildfire preparedness

• marketing and business

• forest health

• weed management

• wildlife habitat

• forest fungi

• and more!

Tree School Clackamas will be held on Saturday, March 21 at the Clackamas Community College in Oregon City. Advanced registration is required, there will be no walk-in registration available at Tree School.

Registration will open Tuesday, February 3 at 10 a.m. and will close once classes are full or by March 5, whichever comes first. Online registration will automatically open on February 3 at 10:00 a.m. and mail-in forms will begin being processed as staff are available. Online registration is recommended.

https://extension.oregonstate.edu/tree-school/tree-school-clackamas