The Capitol Grounds and Arboretum jurisdiction maintains and preserves the historic landscape of the 286-acre Capitol campus, including Union Square—the 13-acre site situated between the U.S. Capitol's West Front and the National Mall.

The jurisdiction provides professional grounds management services, vehicle and equipment maintenance, sustainable irrigation practices, masonry restoration and preservation of landscape elements and memorials.

The Arboretum of U.S. Capitol Grounds

The jurisdiction also provides snow removal and trash collection services. In addition, the jurisdiction supports major events, including presidential inaugurations, lying in state ceremonies, National Law Enforcement Officers Memorial services and the Capitol Christmas Tree selection and display.

Our Stories

Capitol Grounds and Arboretum Work

History & Discoveries

Going on a Tree Hunt

The Architect of the Capitol's Urban Forester takes us on an adventure around the U.S. Capitol Grounds to search for its biggest tree.
Map of cherry tree groups found on the U.S. Capitol campus.
Public Notice

U.S. Capitol Cherry Blossoms Map

Whether you live in the area or are coming from afar, be sure to stop and see the cherry blossoms sprinkled throughout the U.S. Capitol campus.
A talented employee of an Architect of the Capitol sheet metal shop.

Expertise

Skillful Craftmanship

We serve in diverse roles applying both modern techniques and historical tradecrafts in the care and preservation of the Capitol campus.

Areas of Expertise