(DC) (Rock Creek Park) Join Rock Creek Conservancy, the National Park Service, and Weed Warrior Leader Kathy Sykes for this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent ...
(DC) (Friends of the National Arboretum) Shop for Christmas trees, wreaths, and garlands during the annual sale. You can also pre-order your greenery! Have them delivered to your house, or pick them up at the Arboretum on December 7th. Pre-ordering is not required but guarantees you a great tree at the best price. When pre-ordering, please select “Friends of the ...
(DC) (US Botanic Garden) During this illuminating lecture, botanist, Distinguished Scientist and Curator Emeritus W. John Kress, Ph.D., will discuss his new book, Smithsonian Trees of North America. Ten years in the making, this comprehensive compendium takes a careful look at the diversity, morphology, and beauty of over 325 tree species. Dr. Kress will discuss the extensive research behind the ...