When Rockingham moved to its present site, the Stony Brook Garden Club of Princeton took on researching, funding (including contributions from the New Jersey Committee of the Garden Club of America and the Children of the American Revolution) and establishing the utilitarian kitchen garden and maintained it until the fall of 2012. The garden club had designed and planted an herb garden at Rockingham’s third site in 1964 and maintained it until the move to the new and present site. 

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The design of Rockingham’s kitchen garden attempts to reflect what the Berrien family would have needed for themselves, their staff and guests on a day-to-day basis—not only in growing season but also for the long winter months ahead. The garden is fenced with raised rectangular beds planted with vegetables and berry bushes, along with herbs and flowers with culinary, household and medicinal purposes.

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Visitors have been drawn to the Rockingham garden’s simplicity and lush vegetation. The garden has come back more beautiful and plentiful each spring and summer. Beans climb the “teepee”, and the herbs and perennials are bursting with foliage. Roses climb the fence with abundance.

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The garden also hosts the site’s first fruit tree—an apple tree, the sapling of which was hand grown by long time garden club member and Rockingham supporter, Adra Fairman.  A more substantial orchard has been established on the east side of the property with eighteen trees of three heirloom varieties of apple.

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Outside the fence of the garden is a Hawthorn tree, purchased with a donation from the Children of the American Revolution. In Colonial days thorns from the trees were used to pin women’s clothing when metal pins proved too costly.

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A laminated guide to some of the garden’s plants with many interesting facts about them and their uses is available for borrowing and is located in the wooden box near the staff entrance to the mansion. The guide provides good reading while waiting for a tour or strolling in the garden.