At 8.5 acres, this garden and woodland oasis is Cape Cod's oldest and largest privately owned public park, with 90+ years of history, rare trees, shady trails, and flourishing gardens.
Armstrong-Kelley Park is currently closed for renovations. We will see you in the Spring!
Armstrong-Kelley Park is an 8.5 acre garden and woodland oasis in Osterville, Massachusetts. In Spring 2020, The Cape Cod Horticultural Society (CCHS), which has owned and maintained Armstrong-Kelley Park for nearly 100 years, approved a plan to be integrated into The Trustees. Through this integration, which became official in the Fall of 2021, this treasured community resource is now a Trustees reservation, and its 12th public garden.
Enjoy seven trails through the woodland, spot more than two dozen rare species of trees and hundreds of rhododendron and azalea plants, and enjoy the John Folk Water garden complete with sculptures and fish pond. Picnic tables and benches are scattered throughout.
Free admission, open from sunrise to sunset, year-round. For events and program information, please visit our Things to Do page.
675 Main Street
Osterville, MA 02655
From points north: Follow I-93 S, MA-3 S and US-6 E to MA-149 S in Barnstable. Take exit 65 from US-6 E. Follow Osterville West Barnstable Road and Main Street to your destination.
From points west: Take I-90 E/Massachusetts Turnpike, I-495 S, MA-25 E and US-6 E to MA-149 S in Barnstable. Take exit 65 from US-6 E. Follow Osterville West Barnstable Rd and Main St to your destination
The 8.5 acre parcel is home to a variety of plantings, as well as trails and shady walkways. During your visit you can find:
For events and program information, please visit our Things to Do page.
A property map will be posted once restoration/expansion construction is complete.
on this page
Gardens & Horticulture
November 17, 2021
The Trustees welcomes a beloved community park on The Cape as our 12th public gar...
Trustees properties that allow on-leash or off-leash dogs, as well as guidelines when walking your dog.
Construction on the driveway, accessible paths, and main green are expected to have begun. Click here to view a conceptual rendering, courtesy of Mikyoung Kim Design.
The Cape Cod Horticultural Society (CCHS) was founded February 17, 1928 with 78 charter members, most of whom were professional gardeners. In 1931, Mrs. Marion (Seaverns Williams) Kelley and Mrs. Mary Martha (Armstrong) McClary gave two parcels of land to the CCHS, which named the land in their honor as Armstrong-Kelley Park. In 1937, Cecil I. Goodspeed and Ellen B. Goodspeed granted to the CCHS an adjoining parcel, bringing the total Armstrong-Kelley Park land to 8.5 acres. For 90+ years dedicated CCHS volunteers cared for the land before integrating with The Trustees in 2021.
Photo Courtesy Above Summit
Photo Courtesy of the Cape Cod Times
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