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United States Department of Agriculture

Agricultural Research Service

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The Knot Garden: Link to photo information
Garden within a garden: One section of the herb garden is the Knot Garden, so named for its pattern of evergreen shrubs. Click the image for more information about it.

National Herb Garden Celebrates 25th Anniversary

By Alfredo Flores
May 20, 2005

The National Herb Garden in Washington, D.C., the largest designed herb garden in North America, is kicking off a six-month celebration of its 25th anniversary. The herb garden is located at the U.S. National Arboretum (USNA), operated by the Agricultural Research Service (ARS).

The celebration will include a series of special events, lectures and demonstrations planned to help visitors understand the central role that herbs have played in societies for many centuries. On May 21, the arboretum will present "The Making of a Garden," expected to draw interest from backyard and professional herb growers and others who love the sights and smells of plants like rosemary, lavender, scented geraniums and salvia. On June 18, the Potomac and Philadelphia units of the Herb Society of America (HSA) will demonstrate the making of herbal crafts. On September 17, the North Carolina unit will demonstrate its members' work with herbal liqueurs and vinegar.

Overhead view of the entrance to the National Herb Garden. Link to photo information
Arboretum employee Chrissy Moore (green jacket) and volunteer Nancy Johnson spruce up the entrance to the National Herb Garden. Click the image for more information about it.

Dedicated in May 1980, the garden began as a special gift to the people of the United States from the HSA. The 2.5-acre garden, planned by landscape architect Tom Wirth, includes hundreds of annual, perennial and woody herbal plants. Interpretive signs help visitors understand the collection in the context of the herbs' history and use.

An integral part of the arboretum, the herb garden is tended by the USNA's Gardens Unit, led by garden curator and horticulturist Jim Adams. Each year, the unit's staff grows about 400 varieties of annuals, including 60 to 90 varieties of peppers, and they maintain nearly 75 containers of tender trees and shrubs indoors during winter.

Information about the anniversary celebration and USNA events, as well a newly released virtual tour of the garden, can be found on the arboretum's web site at:

More information about the garden is also available in the May 2005 issue of Agricultural Research magazine.

ARS is the U.S. Department of Agriculture's chief scientific research agency.

Last Modified: 8/22/2017
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