Celebrate 250 years of independence beneath one of Portsmouth’s most historic landmarks.

Join us on June 13 for our Tree of Independence Festival, honoring the iconic horse chestnut tree planted 250 years ago by a signer of the Declaration of Independence, William Whipple, and his enslaved servant, Prince, upon Whipple’s return from Pennsylvania in 1776.

This special experience is included with a self-guided house tour, a garden tour, or for attendees of our Colonial Crafts: Basket Making workshop earlier that morning.

Tickets are available online or in person.

Enjoy a day of festive food, lectures, activities, and more as we commemorate this powerful moment in history during America’s semiquincentennial.

10 AM - 3 PM