How to identify and American Elm
How do you know an American Elm when you see one? Here are some characteristics of American Elms that will help you identify these trees on the streets of DC. …
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Elm Pruning Workshop Recap
Twenty Casey Trees Citizen Foresters, staff members and other volunteers joined National Park Service horticulturist Barry Stahl on Saturday, January 8, for a tree pruning workshop at Daingerfield Island. This …
Tree of the Month: American Holly
Now that winter is approaching and the leaves of many deciduous trees have fallen, some of the most vibrant trees in our city become more apparent. The American Holly (ilex …
What does it mean? Spray paint on trees & sidewalks
Every so often you may notice spray paint marks on street trees and sidewalks. What do they mean? The District Department of Transportation’s Urban Forestry Administration (UFA), whose mission is …