Three different theories trace the Christmas tree back to the 1400s or 1500s. Two others go even further back.

If your family enjoys putting up a live Christmas tree every year, these nine fragrant varieties are perfect for making your home smell like the holidays.

In anticipation of a hotter, drier climate, foresters across the Pacific Northwest have been testing new species of trees.

The debate between real Christmas trees and artificial ones has been going on for decades. Artificial because they are easy and reusable. Real because well, they are real and fill the house with a ...

In just 200 years, the fir tree has transformed Danish Christmas traditions, forming the basis for songs, stories, rituals ...

PORTLAND — Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet-unpublished research conducted by the U.S. Forest Service. Called “Firmageddon” by ...

Phytophthora root rot is a stubborn enemy for some Christmas tree growers No fungicide has proved effective to control Phytophthora Growers turning to species from Europe%2C Asia that are more ...

A new study finds the West is likely to see slower-growing Douglas fir trees in the future, as temperatures and droughts increase with climate change. Researchers with the University of ...

In 2008, scientist Bryan Black took core samples the diameter of a pencil from a forest near the north Oregon coast. Most of the trees were hemlocks and Douglas fir that had been undisturbed for about ...

Landscape and forest trees are experiencing widespread dieback this spring according to Glenn Ahrens, Oregon State University Extension Forester for Marion County. "Browning or dieback is usually ...