The Arnold Arboretum's sesquicentennial Director's Series traces the Arnold’s significance in the landscape architecture movement, value for the people of Boston, and leadership in creating global connections between plants and people.

Panelists include:

• Dr. Michelle Kondo, Research Social Scientist, UDSA-Forest Service

• Rev. Mariama White-Hammond, Chief of Environment, Energy, and Open Space, City of Boston

• Laurence Cotton, Consulting Producer, “Frederick Law Olmsted: Designing...

Dr. Liseli A. Fitzpatrick, a Trinidadian-scholar in the field of African Diasporic cosmologies and sacred ontologies, will lead an engaging lecture and discussion exploring African mythologies and folkloric cultures.

Learn more and register.

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,...

Just in time for the Arboretum's sesquicentennial and the bicentennial of the birth of pioneering landscape architect Frederick Law Olmsted, authors Rolf Diamant and Ethan Carr will speak on their recent book, "Olmsted and Yosemite: Civil War, Abolition, and the National Park Idea." They'll offer a new interpretation of how the American park—urban and national—came to figure so prominently in our cultural identity, and why this more complex and inclusive story deserves to be told.

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This is the third lecture in the Arnold Arboretum's 2021 Director's Lecture Series. Tiya Miles takes up the pecan tree as inspiration for exploring the meaning of trees in the lives of enslaved African Americans. Using a family heirloom, slave narratives, oral histories, and missionary records, her talk underscores the importance of trees in the Black experience of captivity and resistance, ultimately revealing the centrality of the natural world to Black, and indeed human, survival.

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At the time of its founding in 1872, the land on which the Arnold Arboretum of Harvard University is sighted was a patchwork of farmland and forest. As the Arboretum was planted, pathways were developed to lead people through the picturesque landscape. As the landscape developed, economies shifted, wars took place, and directors changed. Each of these factors subtly influenced shifts in the park’s path system. Join the Arnold Arboretum on Zoom with Jared Rubinstein as he reveals the layers of change in this beloved landscape.

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Chris Morgan is fascinated by the patterns and textures in nature, the shapes of trees, and the movements of birds. He captures these beautifully in his photographs, which were on display at the Arnold Arboretum in the winter of 2019.

In this program, Chris will discuss his photographic interests and methods in the classroom and then move outdoors to demonstrate his techniques. Class participants will be able to learn alongside Chris, evaluating views, debating camera angles, and considering focal points in order to shoot better images. Participants should bring their...

Sam Jaffe, naturalist and educator, will present both the collaborative and deceitful nature of insects and plants as they’ve evolved to rely upon one another. This lecture, illustrated with Sam’s gorgeous photographs, will expand your invertebrate knowledge, appreciation, and desire to be the best garden host you can be.

Cost:
$10 for members; $15 for nonmembers.

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Soil is the basis of survival. Without soil, humans and most other living beings could not exist. Conor Guidarelli, who has dug deep into the soils of the Arnold Arboretum will present an overview of soil, from its formation and components to its properties. He will discuss ways to analyze soil quality and health to determine whether or not amendments are needed based on the soil outcome or use desired.

Participants are encouraged to bring a pint glass jar with about a cup of soil in it to class.

Cost: $20 for members; $30 for nonmembers.

Join Manager of Plant Production, Tiffany Enzenbacher, for an evening of exploration into the oldest dwarfed plant collection in the United States. As one of the caretakers of the Arboretum's bonsai collection, Tiffany will highlight many of the procedures used by staff to maintain the health of these captivating specimens.

Learn more about and register for Bonsai Behind the...

Ensuring the long-term health of your landscape starts with healthy plants from the nursery, proper site selection and preparation, and sound planting and establishment. Andrew Gapinski will discuss professional standards and techniques, along with common issues and solutions for both balled-and-burlapped and containerized specimens. He will focus on landscape trees, shrubs, and perennials—ornamental annuals and vegetables will not be covered in this offering. Class will start indoors and then move outdoors to the Dana Greenhouse Nursery.

Cost: $30 members, $...

A wanderer and writer with a doctorate in religion, Gavin Van Horn inhabits a big city. And that city (Chicago) has offered him something to compliment and complicate the solitude of the woods or a remote mountainside: a window onto the attractiveness of cities to animals. What was once in his mind essentially a nature-free zone turns out to be a bustling environment where millions of wild things roam. He came to realize that our own paths are crisscrossed by the tracks and flyways of black-crowned night herons, Cooper’s hawks, brown bats, coyotes, opossums, white-tailed deer, and many...

Instructor: Andrew Gapinski, Head of Horticulture, Arnold Arboretum

Put down the hedge shears! Through both classroom instruction and hands-on field training, this class will include what’s, whys, and how’s of proper pruning approaches and...

Join Manager of Plant Production Tiffany Enzenbacher to learn how to propagate woody plants from fall cuttings. Students will collect and stick cuttings of several taxa (Ilex and Pieris to name a few), and will take their propagules home. After rooting, small plants may be ready to transplant as early as next year. Post-class nurturing will be required. Fee for all...

Learn about seed biology, embryo dormancy, and factors present in woody plant seeds. The class will focus on seed storage and various treatment techniques, including over-wintering and aftercare. Appropriate for those who have succeeded at growing some plants from seed and are ready for greater challenges. Post-class nurturing will be required. Fee $55 members; $68 non-members.

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Urban and suburban planting spaces are often constrained, often not ideal for accommodating a large oak, linden, or maple tree. But there are many smaller tree species that will thrive in a smaller space and won’t overwhelm the area. Some trees are cultivars that have been selected for their smaller size or narrow characteristics, while others are naturally genetically petite. Guided by the “right plant, right place” philosophy, Laura Mele...

Back by popular demand with more content! Terry Huang’s bawdy botanical review delves into the sex lives of plants, dramatically explaining the challenges of courtship and consummation for those rooted in place. Alluring suitors with a pungent rotten odor, promising nectar for the exchange of goods, or going at it alone, plants have evolved interesting strategies to ensure their continued existence. From mutualistic partnerships to deceit-filled...

What if your host truly didn’t want you to visit? Found you intolerable, in fact, and didn’t want you to stay? You’d think that you’d be kicked out, but... Read more about Of Monarchs and Milkweed: A Story of Coevolution, Cultural History, and Conservation