Lilac Sunday


    Arnold Arboretum, 125 Arborway, Boston

    Join us for the first Lilac Sunday since 2019! We’ll be celebrating 150 years of Arboretum history and 112 Lilac Sundays.

    Experience the springtime bloom of our renowned collection of nearly 400 lilacs. Visit for tours with Arboretum experts, hands-on children’s programming, and more.

    Learn more.

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    Celebrating a Sesquicentennial: The Founding of the Arnold Arboretum


    Livestreamed or at Weld Hill Research Building, 1300 Centre St., Boston

    The Arnold Arboretum was founded on Friday, March 29, 1872. Exactly 150 years later, we invite you to join Lisa Pearson, Head of the Arboretum Library and Archives, for a special sesquicentennial lecture! Pearson will discuss the earliest benefactors of the Arboretum, the events surrounding the founding of the institution, and the busy first two decades during which the infrastructure and living collections were installed on the grounds.

    This event will also be livestreamed to YouTube. To sign up for the virtual livestream instead,...

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    Weekday Guided Tours


    Hunnewell Building, Arnold Arboretum, 125 Arborway, Boston

    Enjoy a free guided tour of the Arnold Arboretum landscape with a knowledgeable docent. Tours are appropriate for adults and last approximately 90 minutes. History, highlights of the landscape, seasonal interest and more!



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