With 88% of the tree diseased, Oregon Parks and Recreation Department Parks is exploring options to honor the landmark.

Associate Professor Andres Holz helps lead study on trees and “green islands” that survive wildfires but die up to three years later.

Portland wants to plant 660,000 trees over the next 40 years and launch a citywide and city-managed street tree maintenance program that will take the financial burden off residents. A draft of ...

The fight over trees offers a case study, in which two Portland bureaus — the Bureau of Environmental Services and the Bureau of Parks and Recreation — are competing for the power that comes ...

For decades, Portland, Oregon has been a pivotal place to study the relationship between trees and related health benefits; now, with the Trump administration funding cuts in play, it may be a ...

Anyone who has visited Portland, Oregon, knows the city is synonymous ... design and collection of over 2,300 unique species of trees (6,000 trees total), ranging from towering coastal redwoods ...

Last spring, City of Portland biologist Dominic Maze and ... about the habitat along rivers and creeks where native Oregon ash trees have a unique ability to provide shady streamside habitat.

Given Portland’s changing climate, Schafer said the city may need to extend that initial watering period. Yashar Vasef, the executive director of Oregon nonprofit Friends of Trees, echoed ...

PORTLAND, Ore. (KOIN) — Heavy rains and strong winds sweeping Oregon and Southwest Washington Friday morning caused power outages, flash flood watches, landslide risks and now, fallen trees.

Photo by Tyler Quinn, courtesy Oregon Japanese Garden “Winters ... take in the natural beauty of the blossoming cherry trees. Due to the Portland Japanese Garden’s higher elevation in ...

A tiny, one-tree shrubbery park in Portland has ... The record was previously held by Mill Ends Park in Portland, Oregon (Guinness World Records) The Japanese park was constructed after a staff ...

PORTLAND, Ore. — Well, it's almost that time of the year again when Christmas trees make the final trip from your living room to the side of the road or your local Boy Scouts. There are several ...