Public Notice
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Located in Capitol Square, N.W., across from the Summerhouse.
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A tree honoring the life and service of Mr. Christopher Vetick, Architect of the Capitol (AOC) former Deputy Director of Capitol Grounds and Arboretum.
Public Notice
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The Architect of the Capitol, along with other legislative branch procurement offices, are hosting the event on June 25, 2024, from 9 a.m. to noon at the U.S. Capitol Visitor Center's Congressional Auditorium.
Behind the Scenes
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When it comes to preserving the Library of Congress' record-breaking collection of more than 175 million items — including books, historical materials and cultural artifacts — the Architect of the Capitol staff plays an instrumental role in keeping things cool.
History & Discoveries
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Celebrating the history of tree planting and tree preservation at the U.S. Capitol Grounds by highlighting some of the oldest trees on the grounds.
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There is one original willow oak tree still living on the U.S. Capitol campus today.
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There is one original swamp chestnut oak tree still living on the U.S. Capitol campus today.
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There is one original bigleaf linden tree still living on the U.S. Capitol campus today.
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There is one original Kentucky coffeetree still living on the U.S. Capitol campus today.
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There is one original Wych elm tree still living on the U.S. Capitol campus today.
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There is one original cucumber magnolia tree still living on the U.S. Capitol campus today.
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There are two original white oak trees still living on the U.S. Capitol campus today.
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There is one original yellow buckeye tree still living on the U.S. Capitol campus today.
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There are two original Dutch elm trees still living on the U.S. Capitol campus today.
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There are two original white ash trees still living on the U.S. Capitol campus today.
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There is one original green ash tree still living on the U.S. Capitol campus today.
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There are three original Japanese pagoda trees still living on the U.S. Capitol campus today.
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There are two original Osage orange trees still living on the U.S. Capitol campus today.
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There are two original jujube trees still living on the U.S. Capitol campus today.
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There are three original tulip trees still living on the U.S. Capitol campus today.
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There is one original northern red oak tree still living on the U.S. Capitol campus today.
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There are three original bur oak trees still living on the U.S. Capitol campus today.
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Also known as basswood, the American linden is a native deciduous tree found throughout eastern North America. It is known for its broad, heart-shaped leaves, fragrant pale-yellow flowers that attract pollinators, and its smooth gray bark that develops ridges with age. Historically, its soft
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There is one original smoothleaf elm tree still living on the U.S. Capitol campus today.
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There are two original American elm trees still living on the U.S. Capitol campus today. About the Olmsted Originals Landscape architect Frederick Law Olmsted's 1874 General Plan for the U.S. Capitol Grounds sought to create a setting to accentuate the monumentality of the Capitol Building
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There are two original American beech trees still living on the U.S. Capitol campus today.
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Known for its fan-shaped leaves that turn from bright green in the summer to bright yellow in the fall, the ginkgo's earliest leaf fossils date back 270 million years. The ginkgo drops its leaves at the same time creating a solid yellow carpet under the tree. There are six original ginkgo trees
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There is one original horse chestnuet tree still living on the U.S. Capitol campus today.
Programs & Events
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At the Architect of the Capitol (AOC), the Capitol Grounds and Arboretum team works hard to promote green and sustainable practices around the Capitol campus.
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The Director of the Office of Safety and Code Compliance at the Architect of the Capitol leads agency efforts to provide a world-class safety culture, reduce injuries, and ensure compliance with safety, fire and environmental regulations.