U.S. Capitol Grounds Recognized as Accredited Arboretum, Emphasizing Conservation and Native Plants
The U.S. Capitol Grounds has been officially recognized as a Level III Accredited Arboretum by ArbNet, a global accreditation program. Spanning 286 acres, the arboretum is home to over 4,800 trees and thousands of other plants. This accreditation signifies its commitment to scientific research, conservation efforts, and public outreach regarding tree preservation. The grounds incorporate sustainable practices, including the use of beneficial insects like green lacewings for pest control, reducing reliance on broad-spectrum pesticides. Native plants, such as beardtongue, yarrow, purple coneflower, and beebalm, are specifically chosen to support pollinator and beneficial invertebrate populations. An ethnobotanical garden was installed at the Russell Senate Office Building in 2024 to further enhance pollinator habitats in the urban environment. The design of the grounds, originally conceived by landscape architect Frederick Law Olmsted between 1874 and 1892, continues to guide planting decisions, with approxi...