When it comes to choosing the right fast-growing tree for year-round privacy, the iconic Douglas-fir (Pseudotsuga menziesii) Christmas tree may not be the first thing that comes to mind. Its fresh ...

The south slopes of the Santa Susana Mountains are pretty enough: a brown, brushy backdrop above the ‘burbs of the San Fernando Valley. But this southern exposure offers no clue to what lies on the ...

The iconic Douglas-fir has been standing tall in Oregon for many centuries. But the evergreen species isn't doing so well lately, with many trees dying off in parts of the Klamath Mountains of ...

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

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 ...