Loveland’s tree streets include 22 streets named for trees in the Pine Family. The family includes 234 species worldwide and they separate into nine groups: cedars, Douglas-firs, firs, golden-larch, ...

CORVALLIS, Ore. (KTVZ) – Increases in mortality among Douglas firs in the Klamath Mountains are the result of multiple factors that have the iconic tree in a “decline spiral” in parts of the region, a ...

Using plant keys, or what are also commonly called dichotomous keys, is a useful way to identify plants. With the holidays ...

Christmas trees are big business out West, but a hotter climate means challenges for tree growers. John Tillman owns Tillman Christmas Trees and has acres of Noble, Nordmann, Fraser, Korean and ...

Scientists at Washington State University are looking at what goes into that choice, contributing data to research to ...

Fraser fir is the classic Christmas tree — popular, shapely, with great needle retention and strong, silvery branches. It's the Cadillac of the cut-your-own tree lot. But what would it take to send ...

Weighing the environmental pros and cons of a real or artificial Christmas tree can get murky. Here are a few things to consider before you buy.

Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet unpublished research conducted by the U.S. Forest Service.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