Sonoma’s native oak trees, a defining feature of our landscape and cultural heritage, are in critical danger due to the rapid ...

Identifying trees in winter doesn’t stop at bark and buds. In this second part, we explore additional features and techniques ...

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet ...

Discover which Christmas tree varieties stay fresh long after cutting. Plus, get insider tips from growers to make your real ...