H. H. Hunnewell estate

[2] The property is located within the Hunnewell Estates Historic District, on Washington Street in southwest Wellesley, near Boston, Massachusetts.

Mr. Hunnewell took great interest in planting species of evergreens from around the world that had not previously been available in the United States, and from other regions of the country not tested in New England.

He staged the first exhibit of large rhododendrons in the U.S., on Boston Common in 1873, which helped to make them popular in American cultivation for gardens and parks.

The pinetum, begun in 1867, includes rare, mature specimens of Torreya nucifera (Japanese nutmeg yew), Tsuga canadensis pendula (Sargent's weeping hemlock), Cedrus libani (Cedar of Lebanon), Juniperus formosana (Taiwan juniper), and Metasequoia glyptostroboides (dawn redwood) – one of the oldest specimens in the United States.

The collection of specimen trees and shrubs includes towering Pinus strobus (Eastern white pine), American white and English Oaks, lindens, tulip trees, bald cypress, and Chinese golden larch, as well as different species and cultivars of azaleas, lilacs, viburnums, hollies, weeping cherries, mountain laurel, and rhododendrons.