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

  • Cultivar of Hybrid Witch-hazel 261-89*C
  • Freeman Maple 318-2006*A
  • Maximowicz Alder 1462-77*J
  • Gray Willow 60-95*B
  • Asian Black Birch 364-97*A
  • Japanese Spicebush 931-85*D
  • Korean Fir 557-86*A
  • Three-flowered Maple 97-77*B
  • Cultivar of American Elm 352-91*A
  • Japanese Cryptomeria 838-53*A
  • Cultivar of Hybrid Witch-hazel 838-2016*A
  • Sprenger Magnolia 228-2005*A
  • Siberian Larch 269-77*A
  • Cultivar of Hybrid Witch-hazel 261-89*C
  • Acer x freemanii 318-2006-A by Ned Friedman
    Freeman Maple 318-2006*A
  • Alnus maximowiczii 1462-77-J by Ned Friedman
    Maximowicz Alder 1462-77*J
  • Salix cinerea 60-95-B by Ned Friedman
    Gray Willow 60-95*B
  • View up a textured tree trunk with bare branches and blue sky
    Asian Black Birch 364-97*A
  • Lindera obtusiloba 931-85-D by Ned Friedman
    Japanese Spicebush 931-85*D
  • Abies koreana 557-86-A by Ned Friedman
    Korean Fir 557-86*A
  • Acer triflorum 97-77-B by Ned Friedman
    Three-flowered Maple 97-77*B
  • Cultivar of American Elm 352-91*A
  • Japanese Cryptomeria 838-53*A
  • Cultivar of Hybrid Witch-hazel 838-2016*A
  • Sprenger Magnolia 228-2005*A
  • Siberian Larch 269-77*A

What’s New

lilac sunday, wonder spot | flowers without petals, entrance improvement project, annual report, storywalks, expeditions : the arboretum’s mobile app, the roslindale gateway path project,

  • Lilac Sunday

    Lilac Sunday is May 14 this year! Join us for our signature spring celebration and experience the bloom of our renowned collection of nearly 400 lilacs. Visit for tours with Arboretum experts, hands-on children’s programming, and more.

    Purple lilacs against blue sky
  • Wonder Spot | Flowers Without Petals

    Did you know that some flowers don't have petals? These early spring flowers are often overlooked. Check out our Wonder Spot with your family and look for these subtle signs of spring!

  • Entrance Improvement Project

    We are partnering with Michael Van Valkenburgh Associates to study and renew six historical entrances to our landscape.

    View of the Hunnewell Building in June 1899 just after the iron gates were installed.
  • Annual Report

    Our online 2021-2022 Annual Report reflects on the Arnold Arboretum’s mission-directed activities over the past fiscal year.

  • 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.

  • 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
  • The Roslindale Gateway Path Project

    Improving carbon-free transportation and green space equity in Boston.

    Map of Arnold Arboretum and neighborhood


Read more stories

Today's Virtual Walks

See all virtual walks

Plants & Collections

See more Plants & Collections
396-69*A Map it ↗

‘Arnold Promise’ Witch-hazel

Scientific Name
Hamamelis × intermedia ‘Arnold Promise’

This winter-blooming showstopper was born at the Arboretum almost a century ago.

View plant bio
727-90*L Map it ↗

‘Gus Mehlquist’ Sprawling Sand Cherry

Scientific Name
Prunus pumila var. depressa 'Gus Mehlquist'

‘Gus Mehlquist’ is an adaptable, low-growing woody groundcover. With dainty spring white flowers, blue-black fruit, crimson fall foliage, and a unique shape, it is a standout during all four seasons.

View plant bio

We are fellows, educators, horticulturists, researchers, and everyone in between.

  • Community Spotlight Camilo Villouta, Putnam Fellow
    Man stands next to tree holding pruners

    There are not many other places where I could study such a diverse group of species. I love having such an exceptional collection next door to the lab, and despite spending so much time in the landscape, I still keep finding wonderful new spots with plants from around the world.

  • Community Spotlight Nancy Sableski, Manager of Children’s Education
    Nancy Sableski

    What’s not to love? The ever-changing landscape and the opportunity to learn new things every day from passionate and caring people are the two most extraordinary aspects of the Arboretum.

  • Community Spotlight Jeffrey Scott Phillips, Horticulturist
    Horticulturist smiles standing in front of pond

    My title is Horticulturist, but I would probably characterize my role here as being the caretaker to the roses, living mulch specialist, and native plant enthusiast. The Arnold has an incredible history of plant-loving people that I really relate to. I feel lucky to work here and look forward to it every day.

  • Community Spotlight Grace Burgin, PhD Candidate
    Grace Burgin

    For me, the Arboretum has both tangible and intangible impacts. As a scientist, I see the concrete potential our collections have for addressing important questions about biological diversity, changing climate, species interactions, and more. As someone who has spent hours simply wandering through the landscape, I know the impact this space can have on my sense of well-being, wonder, and connection with the world around me.

Student work by Sophie Geller, Dana Kash, Mary Miller