Three weekends ago I went to Rocky Mountain National Park to enjoy winter. I was treated to a colorful sunrise and later I noticed a marshy meadow bright with green, yellow, orange and red willows.

It sits among the weeds and scrub vegetation just east of Interstate 5 in downtown Seattle, this long-forgotten link to one of history’s greatest military leaders. The descendant of a Napoleon willow ...

Someone needs to tell the Urban Forests Ecosystems Institute that their tree location map is missing the desert willow (Chilopsis linearis) that was planted at the Master Gardener Demonstration Garden ...