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Prevent Dutch Elm Disease

To protect our elm trees from Dutch elm disease, pruning of any elm is prohibited from April 15 to October 15 in the City of Portland. Watch for signs of of Dutch elm disease.

News article

Dieback of branches indicating Dutch elm disease

Thank You for Celebrating Arbor Day in 2023

Thank you to neighbors and community members for making 2023 Arbor Day a huge success!

News article

three people smiling one with face paint

Make Your First Day Hike Local!

Start off the new year with a stay-local First Day Hike tree walk that you can share with neighbors. Keep exploring the trees of our City in a different way; learn a new approach to tree identification through their buds, bark, and branching.

Updated News article

Eucalyptus leaves in winter

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