Polly Hill

By Katherine Gianni, photo by Ray Ewing

Tucked away in the woods of West Tisbury, the Polly Hill Arboretum has served as a not-so-secret garden since 1958 — officially opening as a public garden in 1998 when founder botanist Polly Hill was still alive.

To celebrate its 20th anniversary as a public garden, the arboretum is offering a Twenty Iconic Trees Tour, a series of walking tours that teaches visitors about some of the most intriguing trees on the property.