United States of America, Pennsylvania, Allegheny, Sewickley
Wilpen Hall (Sewickley, Pennsylvania)
Wilpen Hall was built by architect George S. Orth (d.1911) in the late 1890's as a summer 'cottage' estate for the industrialist William Penn Snyder, with its original formal gardens designed by William Pitkin, Jr. and Seward H. Mott and in place by 1924. The original 162-acre property was a self-sustaining estate that employed twenty persons to maintain the terraced formal gardens and parterres based on Victorian English garden design, the sweeping lawns, a woodlands garden, proprietary gas and water resources, and planted fields.
Now 56 acres of the terraced property still feature distinct garden areas: a formal white garden planted with shrubs including boxwood, white pine and dogwood, iris and allium bulbs, perennial phlox and annuals including zinnia, nicotiana, cleome, dusty miller and petunias. A lengthy rose border along a wall is planted with floribunda climbing roses; a sloping rock garden is planted with arborvitae, dwarf cedar and dwarf Andromeda, and mounding perennials including stonecrop, sedums and lavender. Hydrangea standards and peony beds remain from the original 1920s gardens. Further from the house there are woodland gardens with gingko, maple, sycamore and paw paw forming the upper story that is under planted with bulbs, perennials and ground covers.
Wilpen Hall was listed in the National Register of Historic Places April 20, 2011 and was awarded an historic landmark plaque in 2001 from the List of Pittsburgh History and Landmarks Foundation.
Persons associated with the garden include: William Penn Snyder (former owner, 1898-1931); William Penn Snyder, Jr. (former owner, 1931-1975); William Pitkin, Jr. and Seward H. Mott (landscape architects, 1924); Donald Wilson (gardener, 1956-present); Cathy and Paul Kentzel (managers, 2006-present); Travis Wanner (arborist, 2006-present).
The folder includes worksheets, historical information and photocopies of the landscape architect's drawings for the 1924 garden.