The Trustees of Reservations - Long Hill

Long Hill was owned and cared for by the Sedgwick family from 1916 to 1979, their beloved summer home that, in the 1950s, became their year-round haven. Mabel Cabot Sedgwick, an accomplished gardener and author of The Garden Month by Month, and her husband, Ellery Sedgwick, noted author and editor of The Atlantic Monthly, summered here until Mabel passed in 1937. After Mabel’s death, Ellery married Marjorie Russell Sedgwick, a rare plants specialist. The combined creative vision of these two women led to the design of Long Hill’s enchanting gardens, surrounded by more than 100 acres of woodland. Today, visitors delight in the beauty of Long Hill’s structured and naturalistic gardens as well as a network of woodland trails. A diverse collection of trees, shrubs, and distinctive perennial plants provide color during the growing season, peaking in May and June and providing structure and beauty throughout the year. With an ever-growing calendar of public events and festivities, you’ll find ample reason for frequent returns. Long Hill is open for the season from April 1 – October 30. However, visitor services including the main house will be closed Monday through Friday while the grounds remain open.