The Humphry Marshall House, also historically known as Marshall's Garden, Marshall's Arboretum, and the Botany Farm, is a historic property in Marshallton, an unincorporated village in West Bradford Township, Chester County, Pennsylvania. Built in 1773-74, the house is a good example of an 18th-century Pennsylvania country house, which is most notable as the home of early American botanist Humphry Marshall (1722-1801). The property was also where Marshall established one of the first botanical gardens in what is now the United States. The house was documented by the Historic American Buildings Survey (HABS) in July 1958. It was listed on the National Register of Historic Places on May 27, 1971 and was designated a National Historic Landmark on December 23, 1987. The property is now private