Longwood at Granogue

A mansion sitting at the crest of a hill, surrounded by trees and fields against a golden sky.
Jim Graham

Established in 1923 by Irénée du Pont, Sr. (1876-1963), Granogue is a 505-acre cultural landscape in Wilmington, DE.

Offering picturesque views of the surrounding Brandywine Valley, much of the property is actively farmed for corn, soy, hay, and beef production, with large sections of forest, pasture, and meadow, and includes a 38,500 sq. ft. colonial revival-style home. Expanding upon its ongoing commitment to conservation, Longwood Gardens acquired Granogue in 2024 to conserve one of the last remaining unprotected pieces of open space in the Brandywine River corridor.

Conserving Our Regional Landscape

A white wooden fence beside an idyllic landscoe and alongside a paved road.
A white farmhouse set in a rolling landscape with a full moon in the sky.
A birght blue sky with a mansion in the distance.
A rolling fall landscape with trees in golds and reds.
A sunset shot showing a line of trees and a stone tower in the distance.