Mac Griswold is a cultural landscape historian and the author of Washington’s Gardens at Mount Vernon and The Golden Age of American Gardens. She has won a Guggenheim Fellowship and has written for The New York Times, The Wall Street Journal, and Travel + Leisure. She lives in Sag Harbor, NY.
In 1984, the landscape historian Mac Griswold was rowing along a Long Island creek when she came upon Sylvester Manor, a stately mansion guarded by hulking boxwoods. When Griswold went inside, she...