The Arnold Arboretum of Harvard University is a museum of trees teaching the world about plants.
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Cultivar of Sweetshrub 53-2001*A
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Chinese Catalpa 98-61*B
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Chinese Fringetree 427-87*A
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American Yellowwood 13055*B
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Common Smoketree 1465-80*A
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Cockspur Hawthorn 573-62*A
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Bigleaf Magnolia 961-89*B
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Elepidote Rhododendron 133-63*A
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Fortune's Rhododendron 1075-89*C
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Giant Sequoia 1320-72*A
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Cultivar of Bracted Viburnum 365-2005*B
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Cultivar of Sweetshrub 53-2001*A -
Chinese Catalpa 98-61*B -
Chinese Fringetree 427-87*A -
American Yellowwood 13055*B -
Common Smoketree 1465-80*A -
Cockspur Hawthorn 573-62*A -
Bigleaf Magnolia 961-89*B -
Elepidote Rhododendron 133-63*A -
Fortune's Rhododendron 1075-89*C -
Giant Sequoia 1320-72*A -
Cultivar of Bracted Viburnum 365-2005*B
Featured Event
Save the date: MassQ Ball Color
Save the date for MassQ Ball 2025: Color! A reprise of the wildly successful 2022 event, MassQ Ball is a celebration of Boston’s cultural arts and communities of color, featuring interactive MassQ face painting and cross-cultural dancers, musicians, spoken word, sculpture, and much more. As a landscape dedicated to promoting inclusivity and free access to nature for all, the Arnold Arboretum is honored to partner with Castle of our Skins and multimedia artist Daniel Callahan to host this exciting celebration of diversity and belonging. We will open registration this summer: until then, visit MassQ’s website for a sneak peak at this year’s artists!
What’s New
2025 Research Awards
Our 2025 research awards support diverse and groundbreaking studies across plant and climate science—from pollinator behavior to drought resilience to underground fungal networks. These projects, made possible by the Arboretum’s world-class resources and donor support, highlight the critical role of the Arboretum and our community in advancing scholarship and educating the next generation of scientists.
Summer Programs
View our summer program catalog and register for practical classes, creative workshops, theme tours, wildlife explorations, and wellness programs at the Arboretum.
Professor Benton Taylor Named Fellow of the Ecological Society of America
Benton is an ecosystem ecologist working to understand how terrestrial ecosystems will respond to global change, and what the consequences will be for future carbon cycling. His work spans from tropical rainforests to the arctic tundra, focusing primarily on how plant-microbial partnerships impact ecosystem responses to rising carbon dioxide levels, warming, drought, severe weather, nutrient pollution and human land use.
Washington Street Gate Renewal
Starting Monday, March 31, Washington Street Gate and Blackwell Footpath in Bussey Brook Meadow will be temporarily closed to the public during the next phase of our Entrance Improvement Project. In the meantime, we suggest that visitors follow directional signage in the landscape and use the Forest Hills entrance along the Arborway when going to or from the Forest Hills MBTA station.
The Roslindale Gateway Path Project
Improving carbon-free transportation and green space equity in Boston.
Stories
Today’s Virtual Walks
Keeper’s Tour
Explorers Garden Tour
A Walk Through Time, Part 1
A Walk Through Time, Part 2
Plants & Collections
‘Merrill’ Loebner Magnolia
'Merrill' is an outstanding early white flowering cultivar. It is reliable bloomer and was hybridized at the Arnold Arboretum in 1939.
Japanese Stewartia
This Japanese stewartia—and its nearby sibling—was collected in Korea in 1917. Its taxonomic status has inspired the curiosity of generations of botanists.
