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The Arnold Arboretum of Harvard University is a museum of trees teaching the world about plants.

  • Franklinia alatamaha 2428-3-A by Ned Friedman
    Franklinia Tree 2428-3-A
  • Tsuga candensis 2328-98-A by Ned Friedman
    Eastern Hemlock 2328-98*A
  • Sorbus americana 360-2006*A by Ned Friedman
    American Mountain Ash 360-2006*A
  • Hydrangea quercifolia 184-96*A by Ned Friedman
    Cultivar of Oakleaf Hydrangea 184-96*A
  • Hibiscus syriacus 341-53-A by Ned Friedman
    Rose of Sharon 341-53*A
  • Quercus glandulifera 763-81-A by Ned Friedman
    Konara Oak 763-81*B
  • Pinus strobus 727-2008-A by Ned Friedman
    Eastern White Pine 727-2008*A
  • Lonicera chyrsantha var. longipes 794-74-A by Ned Friedman
    Variety of Coralline Honeysuckle 794-74*A
  • Pseudolarix amabilis 16779-A by Ned Friedman
    Golden Larch 16779*A
  • Styphnolobium japonicum 216-35-A by Ned Friedman
    Japanese Pagoda Tree 216-35*A
  • Malus sargentii 20408-D by Ned Friedman
    Sargent Crabapple 20408*D
  • Magnolia virginiana 779-87-C by Ned Friedman
    Cultivar of Sweetbay Magnolia 779-87*C


Featured Event

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caterpillar lab, art show | tree ring histories: the quilts of anna von mertens, wonder spot | to mow or not to mow, storywalks, art show | the nature of art/the art of nature, wonder spot | dragons and damsels, arnold selects, wonder spots | bats!, expeditions : the arboretum’s mobile app, growing a museum specimen,

  • Caterpillar Lab

    The Caterpillar Lab returns to the Arboretum for three days packed with caterpillar displays, free-exploration programming, digital microscopes, and experienced educators on hand to give you insights into these amazing animals.

  • Art Show | Tree Ring Histories: The Quilts of Anna Von Mertens

    Working with international dendrochronologists, Anna Von Mertens culled source images of tree ring cross-sections from studies connecting climate variability and periods of human instability. The events represented in her quilts correlate to periods of drought recorded by the tree rings. Fading thread colors mirror and highlight historical events.

    Art, hand stitched circle quilt
  • Wonder Spot | To Mow or Not to Mow

    Have you ever wondered what happens if you do not mow a lawn? Visit the Arboretum with your family to explore these areas and see for yourself!

  • StoryWalks

    StoryWalks are a wonderful way for families to read and talk about nature in the Arboretum landscape. Each month we set out a seasonal story about nature by using children’s picture books with beautiful illustrations and kid-friendly language. The StoryWalks migrate weekly through locations just inside several of the most traveled gates in the Arboretum.

  • Art Show | The Nature of Art/The Art of Nature

    This unique show is an invitational of fourteen artists from New England Book Artists. They all use the framework of a book to create a personal vision of nature.

    Art Book, handmade paper on base of sweetgum pods
  • Wonder Spot | Dragons and Damsels

    Have you ever wondered about the dragonflies and damselflies you see this time of year? Visit the Arboretum's ponds with your family and check out our newest Wonder Spot to learn about these high fliers.

  • Arnold Selects

    Explore the past, present, and future of plant introduction at the Arboretum

    Hamamelis x intermedia 'Arnold Promise' 195-2005*A in full flower in late winter.
  • Wonder Spots | Bats!

    There are nine bats species in Massachusetts and six of them have been found on the grounds. Visit all six new Bat Wonder Spots to learn how each bat interacts with the environment, hear recordings of bat calls, and participate in some bat myth busting!

  • Expeditions : The Arboretum’s Mobile App

    Explore stories about botany, horticulture, conservation, and Arboretum history through photos, text, and audio segments.

    Expeditions the app of the Arnold Arboretum
  • Growing a Museum Specimen

    Learn about the life of an Arboretum plant on Google Arts & Culture.

    A color photo of several people standing in a pine savannah.


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Today's Virtual Walks

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Plants & Collections

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Carya illinoinensis illustration
12913*A Map it ↗


Scientific Name
Carya illinoinensis

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.

View plant bio
Trunk and canopy of large pecan
Illustration of Heptacodium
1549-80*B Map it ↗

Seven Son Flower

Scientific Name
Heptacodium miconioides

A botanist at the Arnold Arboretum officially named and described the seven son flower in 1916. But the species would not be grown in the United States until 1980. This plant was among the first.

View plant bio
Heptacodium at AA

We are gardeners, horticulturists, researchers, educators, growers, and everyone in between.

  • Community Spotlight Raydaliz Cancel Vazquez, Seasonal Gardener

    As I care for our plants, I love seeing the other beneficial organisms that inhabit our landscape, especially those who live in our meadow areas. I also enjoy seeing so many people—and dogs!—visiting this place every day. It is amazing to know that all the hard work we do makes many people so happy.

  • Community Spotlight Chris Copeland, Greenhouse Horticultural Technologist

    I am responsible for the horticultural quality of plants that move through our plant production facility. This involves transplanting, careful watering, and managing pests/diseases of all woody and herbaceous plants in our greenhouses and nurseries. I think folks would be interested to know about the diversity and origin of plants in our landscape. It may be hard to tell without reading every tag, but many plants were wild-collected from countries and continents around the world.

  • Community Spotlight Faye Rosin, Director of Research Facilitation

    There is so much more happening at the Arboretum than people realize, from a beautiful landscape that encourages contemplation and discovery, to research in our laboratories, to education involving public school kids or undergraduates from around the world, to art exhibits and performances… and so much more.

  • Community Spotlight Ana Maria Caballero, Outdoor Educator
    Woman examining shrub

    I am inspired by the absolute passion that every staff member and our volunteers possess to make this place as beautiful and as accessible to the public as possible. There are multiple entry points to conservation, education, and research—our mission—but the Arnold Arboretum as a place and its people are the conduits that make our mission come alive.

  • Community Spotlight Tiffany Enzenbacher, Head of Plant Production

    What inspires me about the Arboretum is that each plant in the landscape has a story to tell: where it came from or where the species is native, the individual who harvested the seed in the field to grow it, how it was propagated—information that makes the plant unique. All of these narratives weave together to tell the 150-year account of the Arboretum.

Student work by Sophie Geller, Dana Kash, Mary Miller