News
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Tilia Trees in Portland, Aphids, and Pesticide Advisory
Tilia is an important tree in Portland’s urban forest. They are adaptable trees that can thrive in a variety of conditions. However, many varieties are susceptible to aphids. There is an Oregon Pesticides Advisory about the use of noenicitinoid insecticides on Tilia trees.
Blog post
Tree Inventory Project Is Back in 2023
The Urban Forestry Inventory Project is back in 2023. This year the goal is to inventory 100,000 trees in 41 neighborhoods across Portland.
News article
Western Redcedar Dieback
Researchers in Oregon and Washington are sounding the alarm about Western redcedar decline. There is some hope for the future of Western redcedar in western Oregon. Trees growing in wet areas, northern-facing slopes, and other places with plenty of water show less damage from heat and drought.
Blog post
Meet Some of Our Favorite Heritage Trees
Nomination for new Heritage Trees closes May 1, 2023. Read about some of the already recognized trees. Get inspired to nominate a special tree in your neighborhood.
Blog post
2023 Oregon Heritage Tree Hero Award Recipient, Gregg Everhart
Celebrate this year's Oregon Heritage Tree Hero Award Recipient, Gregg Everhart, and a newly designated Heritage Tree at the Knott Park Tree Walk.
News article
Care for Young Trees this Summer
Get some tips and tricks on how to best care for young trees during the hot days of summer.
News article
Celebrating the Legacy of Bill Naito for AAPI Heritage Month
Learn about Bill Naito's role in shaping the city we know and love today.
News article
Event Highlight: Tree Walk in Columbia Park
Learn some fun facts we shared at our Columbia Park tree walk event.
News article
Check out this Year's Learning Landscapes Highlights
Learn about the Learning Landscapes Program, including this year's plantings and how to get involved.
News article
Celebrate Asian American and Pacific Islander Heritage Month
Celebrate Asian American and Pacific Islander (AAPI) Heritage Month with selected articles about AAPI communities and connecting with the natural world.
Blog post
Celebrate Women's History Month & Meet Three of the Fabulous Women of Urban Forestry
This women’s history month we are celebrating the incredible women of Urban Forestry. We wanted to take a moment to introduce some of our superstars and ask them a few questions about their work.
Blog post
City Bureaus & Urban Forestry Join Forces to Plant More Street Trees
Urban Forestry is partnering with other Bureaus to pilot a project to plant more street trees in the curb/parking zone. These new curb designs (shown in the photo above) slow traffic to improve road safety and provide space for trees.
News article
Portland Urban Forestry Marks 45 Years as Tree City USA
The Arbor Day Foundation has awarded Portland its 45th Tree City USA Award, 25th Growth Award, and 3rd Tree Cities of the World Award. These programs recognize high achievement in municipal tree programs nationally and globally.
News article
Join PP&R at a family-friendly tree planting kickoff event and Arbor Day celebration
Arts and crafts, hundreds of tree plantings in SE Portland’s Lents Park and neighborhood
Press release
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
Portland Urban Forestry Program Earns Global Recognition
Portland's volunteers put in more hours (over 7000) than any other US city! Urban Forestry is not the only one that noticed your hard work. The Arbor Day Foundation has awarded Portland its 44th Tree City USA Award, 24th Growth Award, and 2nd Tree Cities of the World Award.
News article
How to Identify Tree-of-Heaven
The Ailanthus altissima tree is commonly known as a Tree-of-Heaven. It can quickly grow to be a big problem. This is a guide to identify it.
Blog post
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