The grounds are open year-round,  from sunrise to sunset. The Visitor Center and plants sales are closed until May 2024. A map brochure is available at the parking lot kiosk where admission may be paid. No dogs please. $5 admission, free for members & children 12 and under.


      Help support our mission of plant research, education & conservation by becoming a member  or donating today.


      See our programs calendar for upcoming tours, talks, and classes.


      Sign up for email updates on news and programs.



Welcome to the Polly Hill Arboretum


The Polly Hill Arboretum, a Martha’s Vineyard horticultural and botanical landmark, was developed by the legendary horticulturist, Polly Hill (1907-2007). Here in 1958, Polly began an arboretum by sowing a seed, eventually bringing 20 acres under cultivation while preserving 40 additional acres as native woodland. Established in 1998 as a nonprofit institution, the Arboretum is devoted to the cultivation and study of plants and the preservation of the character and magic of this tranquil landscape.


Rare trees and shrubs from around the world are set among stone walls, meadows, and fields, including Polly’s famous North Tisbury azaleas, the national stewartia collection, camellias, hollies, rhododendrons, crabapples, conifers, magnolias, and many more. The kousa dogwood allée, perennial border, monkey puzzle tree, and the Julian Hill magnolia are favorites with visitors.


Plants and Native Plugs for Sale


The online native plant plug sale is live through July 5, 2024. 

Landscape plugs, grown in narrow sleeves with a long 5″ root depth, are an economical way to add native plant diversity! With their small size, they will quickly establish in your garden. Dozens of native species will be available, sold as a set of 3 plugs for $15.99. PHA staff will pack your plugs and you may pick them up at the Visitor Center. 

The season-long plant sale is open Saturday, May 25 through October 14, 2024 from 9:30am – 4pm. We offer a specialty selection of perennials, shrubs and trees, many of which are Polly Hill introductions or Island native plants. Plants will be for sale daily at the Visitor Center through mid-October.


PHA members receive a 10% discount on plants and plugs.


Virtually Engage with the PHA Plant Collection using the Arboretum Explorer

Search for plants in the Arboretum’s collection, view plant locations on an interactive map, and see plant photographs in flower or fruit! This program is both desktop and mobile-friendly, allowing you to access information from your home or with a mobile device while touring the grounds. Plants can be found using the common or scientific name, plant family, country of origin, or location on the Arboretum grounds. Arboretum Explorer has the added benefit of drawing data directly from our collections database, so the information will always remain current. We are eager to hear visitor feedback on this new offering! Click here to open Arboretum Explorer

Staff Housing Initiative – Campaign Fundraising Complete!



After several years of thoughtful consideration and strategic planning toward solving our housing challenges, PHA completed two staff houses on campus, and  your support helped us meet this challenge! We are grateful for our members, supporters, and the Island community who are helping secure the future of the Polly Hill Arboretum.View the staff housing case statement   

Plant Selection Guide

butterfly weed


Need help finding the right plant for your landscape and site conditions? Check out our web-based searchable plant selection guide. Searches are based on site conditions, native region, plant type and plant characteristics. Each category has more detailed options, allowing your search to narrow down plant options for each location. 

Read more about the guide here

Beech Leaf Disease (BLD)


This past May, arboretum staff discovered (BLD) Beech Leaf Disease in our collections and natural areas.

To read more about the disease click here.





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