Chicago Tribune

How can I rescue my declining tree?

Thanks for writing in, Bert. We at the Garden often speak about planting trees and shrubs that are best suited for our Chicago-area climate. The tree in your photo appears to be a Douglas fir, which ...
Science Daily

Douglas-fir in Klamath Mountains are in 'decline spiral'

Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a 'decline spiral' in parts of the region. Increases in mortality ...
KTVZ

As climate warms, drier air likely more stressful than less rain for Douglas-fir trees, OSU study finds

CORVALLIS, Ore. (KTVZ) – Douglas-fir trees will likely experience more stress from drier air as the climate changes than they will from less rain, computer modeling by Oregon State University ...
katu

Camas High School to plant rare 'Moon Tree' from NASA's Artemis I mission

CAMAS, Wash. (KATU) — On Thursday, April 17, 2025, Camas High School will plant a rare "Moon Tree" on its campus, a seedling grown from seeds that traveled around the Moon on NASA's Artemis I mission.
The Columbian

Study: Humidity, not rain, bigger problem for trees

Old growth Douglas fir trees stand along the Salmon River Trail on the Mt. Hood National Forest outside Zigzag, Ore., on June 25, 2004. A new study from Oregon State University researchers finds that ...
Capital Press

Douglas fir trees in ‘decline spiral’ in Klamath Mountains region

A cabin is surrounded by Douglas fir trees. Douglas firs are in a "decline spiral" in southwest Oregon, scientists say. Amid a years-long drought and insect infestation, Douglas fir have entered what ...