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.
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Events
Make Your Own Cyanotypes: A Drop-In Program
Stop by the Hunnewell Lawn while supplies last to create beautiful nature-based cyanotype prints. Participants will arrange flowers, leaves, and seeds and expose them in sunlight to create a deep blue print with bright, ghost-white silhouettes.
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.
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.
Rescheduled Decoding the Landscape: The Urban Wilds
*Rescheduled from July 11* 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 in Bussey Brook Meadow: learn what species are found in an urban wild like this, how the landscape is used to study spontaneous vegetation, and explore the interplay of native, exotic, and invasive species in this unique corner of the Arboretum.
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.
Rescheduled Finding Fireflies
*Rescheduled from June 23* When the sun sets and darkness settles on the Arboretum for the night, every now and then the dark is interrupted by the flash of a firefly. Join Professor Adam South of Tufts University for an evening Firefly Walk to learn about the lives of the fireflies that live here, the mechanics of how they light up, and how these unique insects are being impacted by pesticides and light pollution.
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Canceled Tree Mob: Turtles with Zoo New England
*Cancelled due to air quality concerns.* Zoo New England is partnering with the Arboretum to run its annual turtle survey! For the past six summers, ZNE conservation biologists have ventured into the ponds of the Arboretum to survey the turtles, minnows, and other biodiversity present there. Join Zoo New England staff for a Tree Mob to meet and learn about the fascinating species that call the Arboretum ponds home.
Forest Bathing
Slow down and awaken your senses on a guided sensory experience in the Arnold Arboretum. Forest Bathing, inspired by the Japanese practice of Shinrin-yoku, is a restorative sensory exploration that supports health and healing for all beings. From increased cerebral blood flow to stronger immune defenses, come discover for yourself what happens when we unplug, slow down and open our senses to notice more of our natural surroundings. All the prompts, invitations, sharing and ways of participating are optional and open to interpretation.
Oak Collection Tour
Oaks have been more closely associated with the development of human civilizations across the northern hemisphere than any other genus of tree. From the Royal Oak to the Charter Oak to the Emancipation Oak, from wine and whisky barrels to tall ships to the roof of Notre Dame, from King John to Shakespeare to Leonardo da Vinci, oaks have been inextricably entwined with the human experience. Join docent Paul Eldrenkamp as we learn more about the cultural history of oaks and explore what it is that makes them so useful, so distinct — and so essential.
The Cosmic Tree: A Universal Symbol of Life: Flowering Trees
During this tour we will discuss angiosperms, the largest and most diverse group in the plant kingdom. All flowering trees are angiosperms, but not all angiosperms reproduce in the same way, so you may not see blooms and flowers but plenty of leaves. 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 Center Street Gate starting at Jack Dawson’s shagbark hickory (1883) then head up Oak Path to Beech Path ending at Bussey Hill Road after visiting the ash trees of Norse mythology (Yggdrasil.).
Morning Fitness Walk
Join docent Lisa Gaquin for a brisk morning walk along the inside perimeter of the Arboretum. This walk will be fast-paced, energetic, and will involve walking over hills and rough terrain.
Bizarre Botany: Working Together
Join Manager of Adult Programming and Events Sarah Nechamen for a deep dive into the strangest parts of the plant world. This month’s theme is mutualisms and symbioses: from plants that recruit ant armies to defend against herbivores, to mycorrhizal networks that stretch deep into the soil, explore all of the weird and wonderful ways plants work with other creatures to meet their needs.
Terapia de Bosque en Español: El Corazón del Bosque
La terapia de bosque, también conocida como baño de bosque o shinrin-yoku, es una práctica basada en evidencia que te conecta con la naturaleza de manera amable, curiosa y consciente. En el ritmo acelerado del mundo de hoy, esta experiencia cuidadosamente diseñada te invita a tomar una pausa, despertar tus sentidos y disfrutar de lo que nos ofrece la naturaleza.
Ask a Horticulturist – Bradley Rosaceous Collection
Stop by the Bradley Rosaceous Collection to chat with the Horticulturist who manages the rose garden. Horticulturist Rachel Lawlor will be there from 10:00am to noon, answering questions about caring for roses, the Arboretum’s rosaceous collection, and what it’s like to be a horticulturist here. No registration is required, just stop by!
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.
Living Trees, Living Traditions: Cultural Perspectives on Plant Use
Trees have long played an important role in cultures around the world. On this tour, we delve into the ethnobotany of trees – how people of different cultures and regions made use of woody plants for food, medicine, everyday wooden objects, dyes, fibers, oils, resins, gums, soaps, waxes, tannins. Join docent Vicki Amalfitano to explore how groups from many regions and traditions have historically used bark, roots, and leaves from native and exotic trees we have growing at the Arnold Arboretum for a variety of uses.
Arboretum Highlights Tour: Flora Way Loop
Explore part of the Arboretum’s 281 acre landscape, hear stories of the Arboretum’s history, get an introduction to some of the many woody plant collections, and enjoy what’s in bloom during this 90-minute, docent-led tour. This tour highlights areas near the Flora Way Gate including the Conifer Collection, Hemlock Hill, Rhododendron Dell and Valley Road.
Bees and Beyond: Pollinators at the Arboretum
Join pollinator expert Nicole Bell for a walk through the Arboretum’s meadows to find bees and other pollinators in their natural habitat. Bell will use a sweep net to find and catch bees in the landscape so participants can see them up close, while we talk about the most common bees found in Massachusetts, where they live and what they eat, and the importance of places like the Arboretum for pollinator conservation.
Tree Mob: Lightning Protection
In the heat of summer, lightning strikes represent a threat to the tallest trees of our collections. Join arborist AJ Tataronis for a Tree Mob to learn how the Arboretum’s Horticulture team works to protect our trees from lightning strikes during summer storms.
The History of Hemlock Hill
Hemlock Hill has been through some trials throughout its century and a half at the Arboretum, from the introduction of the hemlock woolly adelgid to the hurricane of 1938. Join former Head Arborist John DelRosso for an exploration of this unique corner of the landscape.
Trees that Shaped Civilization
Join docent Paul Eldrenkamp for a visit to four groups of trees that each played a particularly significant role in shaping very different civilizations: Eastern White Pine, Cedar of Lebanon, Western Red Cedar, and the five sacred trees of the Kiso Forest in Japan.
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.
Canceled Arnoldia Spotlight: Reading the Landscape as Historical Text
*This program has been cancelled.* Before this landscape became an Arboretum, part of it belonged to a black landowner and farmer named Simeon Giles. A Harvard seminar called Slavery, the Environment, and Public History explored what we can learn about Giles and his family by reading the landscape today: which of the trees here were present at that time? What would Giles have cultivated here, and how might the lay of the land have impacted his livelihood? Harvard graduate student Riley Sutherland wrote an article in the summer feature of Arnoldia describing the course and what they learned, and she will be heading out into the landscape again along with Horticulturist Brendan Keegan and Arnoldia Editor Matthew Battles to share what they learned about Giles, the history of this land, and the stories landscapes tell.
Nature Journaling: A Virtual Program
Are you trying to get (back) into a nature-journaling practice? Interested in discovering a new, creative way to engage with the world of trees? Join this online, interactive session for some spontaneous and expressive artmaking, inspired by a tree near you! We will gather online to respond creatively to the trees in our respective corners of the world. The session consists of various free-form sketchbook experiments that celebrate the diversity of tree form.
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.
Arboretum Highlights Tour: Flora Way Loop
Explore part of the Arboretum’s 281 acre landscape, hear stories of the Arboretum’s history, get an introduction to some of the many woody plant collections, and enjoy what’s in bloom during this 90-minute, docent-led tour. This tour highlights areas near the Flora Way Gate including the Conifer Collection, Hemlock Hill, Rhododendron Dell and Valley Road.
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.
All-Ages Insect Safari
Join us for an interactive look at all the tiny critters that crawl, fly, or slither through the Arboretum landscape. We will have sweep nets and bug boxes to catch bugs in Kent Field, digital microscopes to get a closer look, and entomologists to help us identify everything we find. This is an all-ages, interactive program: come prepared to move around and get up close with some bugs and insects!
Morning Fitness Walk
Join docent Lisa Gaquin for a brisk morning walk along the inside perimeter of the Arboretum. This walk will be fast-paced, energetic, and will involve walking over hills and rough terrain.
Tree Mob: Lindens
The linden trees are fruiting at the Arboretum! Join Horticulturist Ryan Devlin to learn about these unique trees, the many species and cultivars here, and how Arboretum staff manage this beautiful collection. We will meet in front of Hunnewell and then walk a few minutes down the road to the linden collection.
Rescheduled All About Bats
*Rescheduled from August 14* As the sun sets, the bats come out! Join Arboretum Horticulturist Brendan Keegan and Matt Kamm, Associate Director of Field Conservation at Zoo New England, for a Bat Walk in the Conifer Collection, using specialized microphones to listen for and identify bat species in the landscape.
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The Cosmic Tree: A Universal Symbol of Life: Flowering Trees
During this tour we will discuss angiosperms, the largest and most diverse group in the plant kingdom. All flowering trees are angiosperms, but not all angiosperms reproduce in the same way, so you may not see blooms and flowers but plenty of leaves. 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 Center Street Gate starting at Jack Dawson’s shagbark hickory (1883) then head up Oak Path to Beech Path ending at Bussey Hill Road after visiting the ash trees of Norse mythology (Yggdrasil.).
Research Spotlight: Biodiversity in the Solar Pollinator Meadow
The Horticulture team planted the Solar Array Pollinator Meadow to provide a habitat for a wide variety of insects, birds, and other pollinators under and around the Weld Hill solar panels. But until recently, they had no good way of knowing just how well their experiment was working–that is, until naturalist Louise Miller took it on as a research project for her Mass Audubon Field Certification. Miller conducted a biodiversity survey of the meadow and recorded 70 species of plants and nearly 300 species of non-plant creatures, from snails and mushrooms to insects and salamanders. Join Miller to learn about the diversity she found here, view some of her incredible photographs, and get a chance to record some observations yourself.
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.
Tree Mob: Beneficial Mites
Have you ever noticed the small tufts of hair found at the intersection of veins on a maple leaf? These structures, called mite domatia, provide shelter and protection for predatory mites, which defend the plant against herbivores and pathogens in return. Join University of Michigan Postdoc and 2026 Carvão Awardee Marianne Azevedo Silva to learn about this mutualistic relationship and the research she is conducting on the mites themselves.
Sketch Your Way to Tree ID
Use the power of art to hone your tree ID skills in this interactive class. The group will walk through the landscape, learning to identify common trees and shrubs and sketching out key identification characteristics. By the end of the program, participants will have a packet of identification tips and drawings for various plants, and a deeper understanding of the characteristics that make each tree species unique. No prior art skills necessary—this class focuses on seeing shapes, patterns, and details that make each species identifiable. Join us for a creative and hands-on approach to tree identification!
Identifying Walnuts and Hickories
Nuts are ripening across the Arboretum landscape: black walnut, pignut, shagbark hickory, shellbark hickory, and many more. Join herbalist Alex Klein for a class on identifying walnut and hickory species using leaf shape, bark, nuts, and other key identification features. The class will focus on species common to Massachusetts streets and forests, so that you will be prepared to identify the trees around you on your next walk in the woods or around town.
Rescheduled Plant-Based Fabric Dyeing: A Drop-In Event
*Rescheduled to August 30 due to rain* Many of the plants grown at the Arboretum have been used as natural dyes for centuries: goldenrod for yellow, stinging nettle for green, madder or bloodroot for pink. Join fiber artist Maggie Ruth Haaland on the Hunnewell Lawn to learn about some of these natural dyeing methods and get a chance to try some of your own.
Living Trees, Living Traditions: Cultural Perspectives on Plant Use
Trees have long played an important role in cultures around the world. On this tour, we delve into the ethnobotany of trees – how people of different cultures and regions made use of woody plants for food, medicine, everyday wooden objects, dyes, fibers, oils, resins, gums, soaps, waxes, tannins. Join docent Vicki Amalfitano to explore how groups from many regions and traditions have historically used bark, roots, and leaves from native and exotic trees we have growing at the Arnold Arboretum for a variety of uses.
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.
Explorers Garden Tour
The Explorers Garden rests in a microclimate just below the summit of Bussey Hill. This nearly five-acre site provides ideal growing conditions for many species that have been challenging to grow in less protected areas of the Arboretum. As such, it has proven to be a perfect testing ground for plants collected in the expeditions of E. H. Wilson in the early 1900s to the NACPEC (North America-China Plant Exploration Consortium) expeditions of our own time. Join docent Marie Herbert for a guided tour to learn more about some of the plants showcased in this special collection and to hear stories of the plant exploration expeditions that brought them to the Arboretum.
Tree Disease and the New England Forest
Introduced diseases are sweeping across New England Forests, from the deadly beech leaf disease to the new laurel wilt threatening sassafras and spicebush shrubs. Join UMass Extension Plant Pathologist Nicholas J. Brazee for a talk on these diseases, how they are impacting New England forests, and what researchers and management teams are doing about it.
Sustainability Spotlight: Irrigation
As climate change leads to increased temperatures and extreme weather patterns, drought is becoming more and more of a concern at the Arboretum. Staff have been working hard to install irrigation systems around the landscape since the record-breaking drought of 2016, working to increase the resiliency of our collections to periods of drought and dry weather, and this fall represents one of the biggest irrigation projects yet. Join Head of Operations and Project Management Danny Schissler and Head Operator Jed Romanowiz to learn how the Arboretum keeps trees watered in areas without irrigation, the Arboretum’s plans for new irrigation installations, and how all of these systems actually work.
Arboretum Highlights Tour: Flora Way Loop
Explore part of the Arboretum’s 281 acre landscape, hear stories of the Arboretum’s history, get an introduction to some of the many woody plant collections, and enjoy what’s in bloom during this 90-minute, docent-led tour. This tour highlights areas near the Flora Way Gate including the Conifer Collection, Hemlock Hill, Rhododendron Dell and Valley Road.
Sketching Trees with Erica Beade
Explore the amazing variety and beauty of trees at the Arnold Arboretum with pencil and paper. Taught by artist and educator Erica Beade, this walking program will focus on capturing the shapes and volume of trunks and branches as well as techniques for drawing foliage. All skill levels are welcome.
Rescheduled Bizarre Botany: Seed Dispersal
*Rescheduled from September 20* Join Manager of Adult Programming and Events Sarah Nechamen for a deep dive into the strangest parts of the plant world. This month’s theme is seed dispersal: from seeds that explode out from their seed pods to pine cones that require wildfire to open, explore all of the weird and wonderful ways plants have found to get their seeds out into the world.
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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.
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.
Arnoldia Spotlight: Stories Among the Trees with Oreades Press
Join Oreades Press and Arnoldia Editor Matthew Battles for a unique literary program: participants will bind together their own booklets in the Hunnewell Lecture Hall and then head into the landscape to hear live readings of excerpts from Arnoldia and An Anthology of Earth from local writers, standing under the same trees highlighted in the readings. After each excerpt, participants will have a chance to reflect and respond in their booklets, ending with an in-depth writing exercise on the themes of trees and nature.