Longwood turns eyesore into enlightenment

When Pierre S. du Pont unveiled the Main Fountain Garden in 1931 on the grounds of an estate he purchased so he could save its trees, the Longwood Gardens showpiece he had designed represented cutting-edge technology. Eighty-three years later, time took its toll, and what was once an impressive engineering feat had become a maintenance headache. In September, Longwood announced that the five-acre Fountain Garden,…