KENNET SQUARE, PA.- Longwood Gardens’ new East Conservatory Plaza, featuring the first terraced lawn in the United States designed by landscape architect Kim Wilkie and the largest indoor green wall in North America, will open to the public on October 9, 2010. The dynamic new gathering space and venue for educational talks, horticultural demonstrations and special events continues Longwood founder Pierre S. du Pont’s legacy of creating unique spaces that integrate into the natural landscape. The East Conservatory Plaza is composed of five tiers of sweeping grass-covered terraces that emerge like steps from the landform. The Plaza is surrounded by woodland plantings, including a more than 200-year-old English Yew. The innovative design of the terraced lawn creates a sculptural clearing, allowing for dramatic views of the Topiary and other gardens to the south, as well as of the East Conservatory façade. “