With so many varieties sold as Christmas trees, knowing what differentiates a Douglas fir from a Norway spruce is key to shopping for a real tree you’ll love. You’re likely to see more than one ...

Federal officials are enlisting arborists and other tree experts as they scramble to develop a plan to protect one of the world’s tallest non-redwood trees from losing a significant chunk of its ...

Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet unpublished research conducted by the U.S. Forest Service.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 researchers, the ...