Research and educational institution in Boston. It manages a collection of hardy trees, shrubs, and vines located on 265 acres and associated herbarium and library collections.

This garden's collections emphasize plants that thrive in the Berkshires, and are displayed in an informal, country setting. Also offers community events, and classes for all ages and skill levels.

A collection of thousands of plants on the college campus in Northampton, grown in the Lyman Conservatory and outdoors in various gardens, and scattered throughout the campus arboretum. Photo gallery, academic and cultural events, history, and information about the herbarium.

A non-profit horticultural and botanical center on Martha's Vineyard. Provides information on admission, membership, events and programs.

Operated by Worcester County Horticultural Society, this garden features several distinctive theme areas. Information about visiting, workshops and events, history, and membership.