• Mushroom Hunt

    Hundreds of mushrooms hide beneath the Arboretum’s canopies, silently blossoming into unique forms then withering away again just as quickly. Join local mushroom enthusiast Maria Pinto to search for these fascinating organisms on the Arboretum grounds, both edible and poisonous alike. Along the way you will learn what mushrooms to look for in different habitats and seasons, how they move through ecosystems, and what the Arboretum’s unique collections affect what mushrooms you might find here.

    Bussey Street Gate

      Built to Withstand: How Plants Resist Wind and Weight

      How do trees, bamboo, marsh grass stems and cattail leaves stand so tall? Join Materials Science Professor Lorna Gibson for a fascinating talk exploring how the internal structure of plants gives them remarkable strength and stability—allowing them to withstand howling winds and even support their own massive weight.

      Hunnewell Lecture Hall

        Owl Observations

        Dusk is a perfect time to look and listen for Great Horned Owls, often heard calling throughout the Arboretum’s collections. Join Arboretum Horticulturist Brendan Keegan and Matt Kamm, Associate Director of Field Conservation at Zoo New England, to hear about the owls’ breeding and nesting behavior, learn how to go owling ethically, and possibly hear and see a few owls as well.

        Bussey Street Gate
        Subject Matter:
          Little Explorers

          Little Explorers

          Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft, and go for a nature walk to continue exploring the theme. The weekly themes are inspired by what is happening seasonally at the Arboretum.

          Hunnewell Lecture Hall

            Conifer Collection Tour

            The conifer collection at the Arnold Arboretum is a magical place to visit at any time of the year, as it is especially rich in history and diversity. Docent Cristina Squeff will lead participants through this collection explaining key identification features and sharing relevant stories about individual trees.

            Bussey Street Gate

              Reading the Forested Landscape

              The forest is a constantly changing landscape where tree species dominate and then fade away, to be replaced by other species in the ongoing process of succession. Join Horticulturist Brendan Keegan to see these dynamics at play on Hemlock Hill: learn about forest species structures, succession dynamics, and how the topography of the earth itself affects the species living there.

              Bussey Street Gate
              • Little Explorers

                Little Explorers

                Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                Hunnewell Lecture Hall
                Subject Matter:

                  The Founder of Modern Botany in China: Celebrating the Life and Legacy of Hu Hsen-Hsu (aka H.H. Hu, Hu Xiansu)

                  Join us to celebrate the life, groundbreaking scientific work, and legacy of Hu Xiansu (Hu Hsen-Hsu) on the 100th anniversary of his doctoral degree from Harvard. This online event will feature Arnold Arboretum Director William (Ned) Friedman, Chief Scientist at the China National Botanical Garden (North Garden) Jinshuang Ma, Professor of Sociology at Beijing Normal University Hu Xiaojiang (granddaughter of Hu Xiansu), and other speakers discussing Hu’s life and influence.

                  Virtual

                    Conservation in a Changing World

                    Part of the mission of the Arnold Arboretum is stewardship of the earth’s botanical diversity and its essential value to humankind. This one hour tour through the landscape, led by docent Vicki Amalfitano, will highlight important Arboretum historical conservation efforts that have preserved distinct native and exotic species, and current efforts in our living collections to mitigate habitat disruption and climate impact. Learn about plant expeditions to preserve species in the face of climate change and new pathogens, research initiatives, as well as the Arboretum’s green initiatives and local collaborations to improve our urban canopy.

                    in front of the Hunnewell Building

                      Young Friends of the Arnold Arboretum

                      This event for the Young Friends of the Arnold Arboretum features an enchanting evening of food, drinks, live music, and content tables in our Weld Hill Research Building —a state-of-the-art facility that is typically closed to the visiting public. Designed to appeal to those 21-45 or who are young at heart, this event is a premier opportunity to immerse yourself in the plants, purpose, and passion of the Arnold Arboretum with other metropolitan nature enthusiasts. Come learn about the research that the Arboretum is doing in the face of climate change as we maintain our 281-acre “museum of trees.”  Please note that this is a 21 and older event.  

                      Weld Hill Research Building
                      Subject Matter:

                        Birding at the Arboretum

                        Have you ever wanted to learn more about the feathered friends you see and hear on a walk through the Arnold Arboretum? If so, please join birders and volunteers TJ and Allison for a leisurely 90-minute bird watching walk. We will cover a variety of habitats and focus on the changes that seasonal migration brings to our resident birds, so come back often to keep up with the seasons!

                        in front of the Hunnewell Building

                          Owl Observations

                          Dusk is a perfect time to look and listen for Great Horned Owls, often heard calling throughout the Arboretum’s collections. Join Arboretum Horticulturist Brendan Keegan and Matt Kamm, Associate Director of Field Conservation at Zoo New England, to hear about the owls’ breeding and nesting behavior, learn how to go owling ethically, and possibly hear and see a few owls as well.

                          Bussey Street Gate
                          Subject Matter:

                            Birding Walk

                            Embark on a birdwatching tour in the Arboretum’s landscape with docent and birder Donna Sullivan. This two-hour tour is suitable for adult beginners as well as more experienced birders.

                            in front of the Hunnewell Building

                              Owl Observations

                              Dusk is a perfect time to look and listen for Great Horned Owls, often heard calling throughout the Arboretum’s collections. Join Arboretum Horticulturist Brendan Keegan to hear about the owls’ breeding and nesting behavior, learn how to go owling ethically, and possibly hear and see a few owls as well.

                              Bussey Street Gate
                              Subject Matter:

                                Birding with Nature Man Mike

                                Embark on a birdwatching walk in the Arboretum’s landscape with birder and wildlife photographer Michael Bryant, AKA Nature Man Mike. This two-hour walk is suitable for beginners as well as more experienced birders. Binoculars will be available to borrow on a first-come-first-serve basis, but you are encouraged to bring your own!

                                in front of the Hunnewell Building
                                Subject Matter:
                                  Little Explorers

                                  Little Explorers

                                  Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                                  Hunnewell Lecture Hall
                                  Subject Matter:

                                    Olmsted and the Arnold Arboretum

                                    Frederick Law Olmsted, considered the father of landscape architecture, designed some 500 public spaces in North America. The Arnold Arboretum is the only arboretum he designed, a National Historic Landmark, and a model for others around the world. Docent Bill Beizer, will identify the elements of the Arboretum that best reflect Olmsted’s philosophy and approach to landscape design.

                                    Bussey Street Gate

                                      The Cosmic Tree: A Universal Symbol of Life: Ginkgoes and Conifers

                                      Docent Katrina Scott will lead this interactive tour with stops for moments to reflect on specific trees and the stories associated with them. Were they revered or feared? A home for deities or tricksters? We will begin at the Walter Street Gate to visit the oldest ginkgoes at the Arboretum, then head up the Conifer Path and diverge to walk, rest, and reflect among various conifers, eventually ending by the yews near Bussey Brook and Hemlock Hill Road.

                                      Walter Street Gate
                                      • Peters Hill in Winter

                                        Get a new perspective on some of the amazing trees on Peters Hill during this one-hour seasonal tour. In winter, leaves and blossoms fall away, exposing hidden features like bark, thorns, and roots. During this one-hour tour led by docent Paul Eldrenkamp, you’ll get a chance to explore a few of the interesting collections in the landscape, learn about the history of this part of the Arboretum, and get a winter time view of the Boston skyline from the second highest point in the city.

                                        Peters Hill Gate

                                          Owl Observations

                                          Dusk is a perfect time to look and listen for Great Horned Owls, often heard calling throughout the Arboretum’s collections. Join Arboretum Horticulturist Brendan Keegan and Matt Kamm, Associate Director of Field Conservation at Zoo New England, to hear about the owls’ breeding and nesting behavior, learn how to go owling ethically, and possibly hear and see a few owls as well.

                                          Bussey Street Gate
                                          Subject Matter:

                                            Birding at the Arboretum

                                            Have you ever wanted to learn more about the feathered friends you see and hear on a walk through the Arnold Arboretum? If so, please join birders and volunteers TJ and Allison for a leisurely 90-minute bird watching walk.

                                            in front of the Hunnewell Building
                                              Little Explorers

                                              Little Explorers

                                              Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                                              Hunnewell Lecture Hall
                                              Subject Matter:
                                                Little Explorers

                                                Little Explorers

                                                Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                                                Hunnewell Lecture Hall
                                                Subject Matter:
                                                Get Tickets 20 tickets left

                                                  Birding Walk

                                                  Embark on a birdwatching tour in the Arboretum’s landscape with docent and birder Donna Sullivan. This two-hour tour is suitable for adult beginners as well as more experienced birders.

                                                  in front of the Hunnewell Building
                                                  • Waitlist

                                                  Peters Hill in Winter

                                                  Get a new perspective on some of the amazing trees on Peters Hill during this one-hour seasonal tour. In winter, leaves and blossoms fall away, exposing hidden features like bark, thorns, and roots. During this one-hour tour led by docent Paul Eldrenkamp, you’ll get a chance to explore a few of the interesting collections in the landscape, learn about the history of this part of the Arboretum, and get a winter time view of the Boston skyline from the second highest point in the city.

                                                  Peters Hill Gate
                                                  Get Tickets 7 tickets left
                                                  • Birding at the Arboretum

                                                    Have you ever wanted to learn more about the feathered friends you see and hear on a walk through the Arnold Arboretum? If so, please join birders and volunteers TJ and Allison for a leisurely 90-minute bird watching walk.

                                                    in front of the Hunnewell Building
                                                    Get Tickets 2 tickets left

                                                      Fearless, Sleepless, Deathless by Maria Pinto

                                                      Join us for a talk by popular Mushroom Hunt instructor Maria Pinto on her new book, Fearless, Sleepless, Deathless: What Fungi Taught Me about Nourishment, Poison, Ecology, Hidden Histories, Zombies, and Black Survival. Maria weaves together memoir, mycology, and cultural history to illuminate the deep and surprising ways fungi connect with human life. With vivid storytelling and a fiercely original voice, she explores fungi not just as biological wonders but as tools of survival, subversion, and spiritual sustenance—especially for those living at the margins.

                                                      Hunnewell Lecture Hall
                                                      • Waitlist

                                                      Keeping Up With the Coyotes

                                                      With mating season just getting started, February is one of the best times to see signs of the Arboretum’s resident coyote population. Join Horticulturist and wildlife enthusiast Brendan Keegan to look for coyote tracks and scat, check our trail cameras, and find out why all these coyotes are in Boston in the first place.

                                                      Washington Street Gate
                                                      Subject Matter:
                                                      • Waitlist

                                                      Winter Wellness Walk

                                                      Take a brisk walk this winter and stay healthy and connected to the Arboretum at a time when the landscape is pared down to its beautiful bones. This 90-minute walk is similar to a guided tour, but with a slightly faster pace and fewer stops, to keep your feet warm and your blood pumping!

                                                      in front of the Hunnewell Building
                                                      Get Tickets 11 tickets left
                                                        Little Explorers

                                                        Little Explorers

                                                        Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                                                        Hunnewell Lecture Hall
                                                        Subject Matter:
                                                        Get Tickets 24 tickets left

                                                          The Cosmic Tree: A Universal Symbol of Life: Ginkgoes and Conifers

                                                          Docent Katrina Scott will lead this interactive tour with stops for moments to reflect on specific trees and the stories associated with them. Were they revered or feared? A home for deities or tricksters? We will begin at the Walter Street Gate to visit the oldest ginkgoes at the Arboretum, then head up the Conifer Path and diverge to walk, rest, and reflect among various conifers, eventually ending by the yews near Bussey Brook and Hemlock Hill Road.

                                                          Walter Street Gate
                                                          • Waitlist

                                                          Winter Tree ID

                                                          Winter can feel like one of the hardest times to identify trees, with most of their characteristic leaves and flowers gone for the season. But with help from experienced horticulturist and plant science teacher Nicole Forsyth, you can start identifying common winter trees from the woods and streets of Massachusetts based only on their bark, buds, twigs, and persistent fruit. This class will begin indoors with a presentation in the lecture hall, and then move outside for some identification practice in the landscape.

                                                          Hunnewell Lecture Hall
                                                          • Waitlist
                                                          Little Explorers

                                                          Little Explorers

                                                          Join us at the Arboretum as we read and discover new things about the natural world. During this one-hour program for our youngest guests and their grownups, we will read a nature inspired story, do a craft/activity, and go for a nature walk to continue exploring the theme.

                                                          Hunnewell Lecture Hall
                                                          Subject Matter:
                                                          Get Tickets 24 tickets left

                                                            Birding Walk

                                                            Embark on a birdwatching tour in the Arboretum’s landscape with docent and birder Donna Sullivan. This two-hour tour is suitable for adult beginners as well as more experienced birders.

                                                            in front of the Hunnewell Building
                                                            Get Tickets 22 tickets left

                                                              Let’s Botanize by Ben Goulet-Scott and Jacob Suissa

                                                              Paying close attention to the plants around us can ease stress and create moments of joy and wonder, whether we’re walking through the woods, down the street, or just getting up close with our own houseplants. Let’s Botanize: 101 Ways to Connect with Plants is full of prompts and beautiful macrophotography that encourage readers to get outside and observe plants in close detail. Join authors Ben Goulet-Scott and Jacob Suissa, both former Arboretum researchers, for a book launch consisting of a talk, book signings, and an optional walk in the landscape to try some of these prompts out for ourselves.

                                                              Hunnewell Lecture Hall
                                                              Get Tickets 8 tickets left

                                                                Peters Hill in Winter

                                                                Get a new perspective on some of the amazing trees on Peters Hill during this one-hour seasonal tour. In winter, leaves and blossoms fall away, exposing hidden features like bark, thorns, and roots. During this one-hour tour led by docent Paul Eldrenkamp, you’ll get a chance to explore a few of the interesting collections in the landscape, learn about the history of this part of the Arboretum, and get a winter time view of the Boston skyline from the second highest point in the city.

                                                                Peters Hill Gate
                                                                Get Tickets 21 tickets left