Bark of Rainbow Eucalyptus tree (Eucalyptus deglupta) in Costa Rica. Tree guru Michael Dirr calls the bark “one of the biological world’s great treasures.” The colors of the bark are due to the way patches of it shed at different times throughout the year, revealing a bright green inner bark that darkens to blue, purple, orange and maroon as it matures. The tree is harvested for pulpwood to make paper, especially in tropical areas. (Photo by Lynn Koch)
Top 10 Invasive PlantsNext ClassApril 13, 2019Join instructor Sarah Archer for an al fresco look at the top 10 invasive plants that harm trees, and then remove some of them as we practice identification and removal techniques in East Falls Church Park, 1730 N. Roosevelt St., Arlington.
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Bad Bug Alert!
Have you seen me? I eat trees. Turn me in. Here’s how.