On a recent sunny day between rain storms, I finally managed to go on a long-awaited field trip. The journey was just as rewarding as the destination. In the course of his work, native plant ecologist ...

The Black Walnut energy storage project in Santa Paula was named after a native California tree. Randolph Mann is founder and ...

The tree is 50 feet tall with a 30-foot-wide crown, a majestic and statuesque presence in my garden. I just love it. And it is fatally ill. Truly, fatally. As a Master Gardener, that is the last thing ...

The genetics behind the alternating sexes of walnut trees has been revealed by biologists at the University of California, Davis. The research, published Jan. 3 in Science, reveals a mechanism that ...