Arnold Arboretum of Harvard University

A 281-acre preserve in the heart of Boston, we are committed to environmental justice and combatting climate change and extinction. We steward one of the world’s most comprehensive and best documented collections of temperate woody plants, with particular focus on the floras of eastern North America and eastern Asia. The living collections, herbarium, and library and archives support research both in our own laboratories at Weld Hill and by scholars around the world. Free and open every day, this public park in Boston’s “Emerald Necklace” was designed by Frederick Law Olmsted and engages the public through educational opportunities and programs for all ages.