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Official painted portrait of 11th Architect of the Capitol Stephen T. Ayers.
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South Olmsted terrace restoration in 2015.
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Capitol Grounds and Arboretum Jurisdiction

Capitol Grounds and Arboretum Jurisdiction

Capitol Grounds preparing plant beds for spring bulb planting on the upper west terrace.

The Capitol Grounds and Arboretum jurisdiction is responsible for both the day-to-day maintenance of the U.S. Capitol grounds and preservation of a significant historic landscape and accredited arboretum designed by Frederick Law Olmsted. 

The U.S. Capitol grounds are comprised of approximately 286 acres, including the U.S. Capitol, Senate and House Office Buildings, the Capitol Power Plant and Union Square. This area includes lawns, parks, historic, memorial and commemorative trees; horticultural display beds; supporting decorative features such as statuary; and historic fountains and water features providing a safe and awe-inspiring setting for the U.S. Capitol.

Meet Jim Kaufmann, Director.

Capitol Grounds and Arboretum:

  • Maintains the physical elements such as sidewalks, streets, parking lots, irrigation and drainage systems, as well as campus-wide trash removal and outdoor recycling and snow removal.
  • Preserves historic decorative features such as fountains, boundary walls and stone carvings.
  • Supports major events such as the annual U.S. Capitol Christmas Tree arrival, State of the Union addresses, inaugurations and summer concerts.
  • Grows and cares for over 4,000 trees that comprise the living heritage assets of our urban canopy.