The Arnold Arboretum of Harvard University is a museum of trees teaching the world about plants.
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Cultivar of European Beech 14599*A
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Bitternut Hickory 8019*A
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White Oak 1179-85*C
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Winged Sumac 288-97*MASS
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Three-flowered Maple 97-77*A
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Common Winterberry 1424-83*MASS
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<em>Symplocos chinensis</em> forma <em>pilosa</em> 719-85*A
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Osage Orange 471-36*B
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Narrowleaf Spicebush 740-75*E
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Seven Son Flower 425-91*D
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Weeping Persian Ironwood 629-87*A
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Cultivar of European Beech 14599*A -
Bitternut Hickory 8019*A -
White Oak 1179-85*C -
Winged Sumac 288-97*MASS -
Three-flowered Maple 97-77*A -
Common Winterberry 1424-83*MASS -
<em>Symplocos chinensis</em> forma <em>pilosa</em> 719-85*A -
Osage Orange 471-36*B -
Narrowleaf Spicebush 740-75*E -
Seven Son Flower 425-91*D -
Weeping Persian Ironwood 629-87*A
Featured Event
Flower Visitors at the Arboretum: Can Honeybees and Native Pollinators Co-Exist?
Most of us know honeybees for the delicious honey they create (and the occasional sting!). But for scientists, the non-native honeybee represents a potential threat to our native bumblebees and butterflies. Biology professor Dr. Richard Primack has been studying these insects at the Arboretum, observing flower visitors at over 600 plant species to determine if honeybees and native pollinators can co-exist. Just us for a research talk and discover the results of this years-long investigation.
What’s New
Support Your Arboretum
Your Generosity Nurtures Discovery
In 2025, gifts and memberships made it possible to keep this living landscape vibrant—both in person and online—while advancing research, education, and conservation. Contribute to the annual fund to help the Arboretum advance its mission amid headwinds in science and higher education.
Legacies in the Landscape
Celebrating Hu Xiansu
Hu Xiansu (H. H. Hu), a pioneering botanist who laid the foundation for modern plant taxonomy in China, earned his doctorate at Harvard 100 years ago. His groundbreaking identification of the “living fossil” dawn redwood and leadership in creating China’s botanical institutions cemented his legacy as one of the most influential figures in 20th-century botany.
Your Landscape for Learning
Winter Programs
View our winter 2025-26 program catalog and register for practical classes, creative workshops, theme tours, wildlife explorations, and wellness programs at the Arboretum.
Summer Horticultural Internships
Hunnewell Internship Program
Applications are being accepted for paid internships in collections management with concentrations in horticulture and landscape maintenance, arboriculture, plant production, or collections curation. Experiences combine hands-on training, interactive educational classes and networking opportunities.
An Entrance Revitalized
Washington Street Gate Renewal
With completion of donor-funded renovations to the Washington Street entrance nearing, the gate into Bussey Brook Meadow and Blackwell Footpath have reopened to visitors and green transit commuters. Additional landscape work at Washington Street will continue this fall.
Stories
Today’s Virtual Walks
Keeper’s Tour
A Walk Through Time, Part 1
A Walk Through Time, Part 2
Explorers Garden Tour
Plants & Collections
Pecan
This pecan, collected in 1882, arrived from the first large research project undertaken at the Arnold Arboretum—a nationwide survey of trees and forests for the United States census in 1880. The collector was an ornithologist with an acute eye for detail.
Golden Larch
This rare native of East Asia puts on a golden show each fall before losing its needles. This specimen came to the Arnold Arboretum by way of the nearby Hunnewell Estate Pinetum in Wellesley, Massachusetts.
See more Plants & Collections →
