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The Morris will be closing at 3 pm on Friday, June 5 as we prepare for Moonlight & Roses. Last entrance into the gardens will be 2 pm.

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Events

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A young girl running through a public garden.

April Storytime

Wednesday, April 15
10:30 am
Outdoor Classroom

Join us for the first storytime of the season! This month, we’re reading We Planted a Tree by Diane Muldrow, a story about how planting trees makes the world a better place. Explore how trees make the world go round and join us for a tree-inspired craft. 

Free with general admission. 

Events

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Purple and orange tulips in bloom.

Spring Blossoms Tour 

Saturday, May 9
11 am
Meet at the Welcome Center

Celebrate the joy of spring as the garden and trees bloom! The vibrant flowers change on a weekly basis as the season unfolds, bringing bursts of color and fragrance. Free with general admission. 

Morris Arboretum & Gardens Announces 2026 Honorees for Moonlight & Roses Gala www.morrisarboretum.org/press-releases/morris-arboretum-gardens-announces-2026-honorees-moonlight-roses-gala

Morris Arboretum & Gardens Announces 2026 Honorees for Moonlight & Roses Gala April 6, 2026 Philadelphia, PA—Morris Arboretum & Gardens will celebrate its annual Moonlight & Roses gala on  Friday, June 5, 2026 at 5:30 pm . The event provides a beautiful forum in which to recognize excellence and leadership in environmental stewardship. This year’s honorees are longtime Morris member  Ellen Nalle Hass and Bartlett Tree Experts . The gala, held on the Morris’s stunning grounds, directly supports the Morris’s work as a renowned public garden and as a center for plant science research and educational programming for all ages. The honorary chairs for the 2026 event are Cameron and John Soroko.  VIP tickets for the 2026 gala are available now, and formal invitations will be mailed in April. If you are interested in sponsoring the event, please contact Kristen Casalenuovo at kcasal@upenn.edu . For more information and to purchase tickets, visit  MorrisArboretumGala.org   Image Ellen Nalle Hass Meet the 2026 Honorees 2025 Individual Honoree Ellen Nalle Hass From her early days roaming the Wissahickon, Ellen Nalle Hass's life has been driven by a reverence for nature. She lives by John Muir's mantra: "I go to nature to be soothed and healed, and to have my senses put in order." Ellen is a longtime neighbor and member of the Morris and served on the Board of Advisors for two decades. For six of those years, Ellen was the board chair and provided strong and enduring leadership during a time of institutional transition. Professionally, she has worked at Condé Nast, WHYY’s Applause magazine, and Springside Chestnut Hill Academy (SCH), and she is now with Team Whetzel at Kurfiss Sotheby's real estate. She is a board member of Chanticleer Garden of Wayne, PA; president of the Henrietta Tower Wurts Memorial Foundation; and a former board member of the Children's Aid Society and SCH. Ellen and her husband, Jay, enjoy visits from their three grown children, Charlotte, Johnny, and …

Events

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A young girl running through a public garden.

May Storytime

Wednesday, May 20
10:30 am
Outdoor Classroom

This month, we’re reading Give Bees a Chance by Bethany Barton. Learn not only why we shouldn’t fear bees, but why they are really our friends with this interactive story and a bee craft to take home. Free with general admission. 

Events

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A Yellow and black butterfly perched on a small sunflower.

The Pursuit of Happiness: Finding Joy in Nature

Wednesday, May 20
12 pm
Virtual
Registration is required
REGISTER
Conversation Only: Members $10 • Non-members $15
Conversation and Forest Bathing: Members $40 • Non-members $45
Extend your experience by adding the in-person Forest Bathing for Health course on June 6 from 10 am - 12 pm at a discounted rate! Discount code for lecture attendees will be emailed after registration.

Do you ever feel overwhelmed by constant media, packed schedules, and work pressures? Many of us know the relief that comes from stepping outside, breathing fresh air, and reconnecting with the natural world.

Join environmental neuroscientist Marc Berman, PhD, and psychologist and neuroscientist Emily Falk, PhD, for an engaging conversation on the science behind nature’s restorative effects. They will explore how time in natural environments can boost energy, sharpen focus, lift mood, and support mental and physical well-being.

For Adults www.morrisarboretum.org/learn-discover/adults

For Adults For Adults Image Image Spring 2026 Courses Join us for an exciting lineup of courses, conferences, tours, and hands-on experiences designed to educate, inspire, and bring you closer to nature. Download the Spring 2026 Course Catalog → Behind the Scenes Birding Botany Certificate Program in Ecological Horticulture Creative Expressions Culinary Adventures Growing Minds Health & Wellness Horticulture & Design Lectures School of Arboriculture Trips Members get discounts on our courses. Not a Morris member? Join today! Become a Member …

Events

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A black and white photograph of a closeup of ferns.

The Roots of American Botany: Vignettes from Philadelphia’s Scientific Past

Thursday, April 23
10:30 am
Virtual
Registration is required
REGISTER

Philadelphia is not only the birthplace of America; it is the birthplace of American botany. Widely celebrated as “America’s Garden Capital,” the city has also played a pivotal role in shaping the nation’s understanding of plant sciences. Join us for a lively virtual discussion exploring Philadelphia’s rich botanical legacy through compelling stories of the past and examples of cutting-edge research tools Morris Arboretum & Gardens scientists as well as other members of the Penn research community are using to solve enduring botanical mysteries. Highlights include new research initiatives at Morris, an exploration of the genetics of Penn’s historic Penn Treaty Elm, and collaborative work in plant genetics with the Penn Museum. Free with registration.

Meet the Participants

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A headshot of a man with gray hair smiling outdoors in a suit.
Host
William Cullina
F. Otto Haas Executive Director, Morris Arboretum & Gardens

Prior to joining the Morris, William Cullina was the president and CEO of Coastal Maine Botanical Gardens for 8 years. He holds degrees in plant science and psychology and has been working in public horticulture for 30 years. He has extensive experience in commercial nursery production as well as a background in horticultural and forestry research. Cullina is a well-known author and a recognized authority on North American native plants.

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A headshot of a smiling man outdoors with blonde hair and a blue Hawaiian shirt.
Moderator
Dr. Morgan Gostel
John J. Willaman Director of Plant Science, Morris Arboretum & Gardens

Dr. Morgan Gostel is the John J. Willaman Director of Plant Science at the Morris Arboretum & Gardens of the University of Pennsylvania. His research in plant systematics emphasizes diversity and evolution of what he refers to as his botanical A, B, Cs, namely three families of flowering plants including Araliaceae (ginseng and ivy), Burseraceae (frankincense and myrrh), and Compositae (daisies and sunflowers). His work has especially been focused in tropical Africa and Madagascar, but the plants in these families are distributed worldwide. Dr. Gostel is also a Research Associate in the Department of Botany at the Smithsonian Institution’s National Museum of Natural History and the Botanical Research Institute of Texas at the Fort Worth Botanic Garden. Since 2015, he has led the Global Genome Initiative for Gardens (GGI-Gardens), an international partnership of botanic gardens dedicated to supporting the collection of genome-quality tissues from living collections to support genomics research.
 

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A head shot of a woman smiling and posed near a plant.
Panelist
Dr. Cynthia Skema
Botanical Scientist, Morris Arboretum & Gardens

Cynthia Skema is a Botanical Scientist at Morris Arboretum & Gardens of the University of Pennsylvania. She earned her Ph.D. at Cornell University, an M.Sc. at the Royal Botanic Garden Edinburgh, and a B.A. at Bryn Mawr College. Dr. Skema enjoys studying plants in the field, herbarium, and lab, and she is particularly interested in how DNA evidence can be used to solve puzzles about the evolution, relationships, and demographic history of plants.

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A headshot of a women with dark hair and a blue t-shirt in a laboratory smiling at the camera and sitting in front of a microscope.
Panelist
Dr. Chantel White
Archaeobotanical Teaching Specialist, Center for the Analysis of Archaeological Materials, Penn Museum

Chantel White is the Teaching Specialist for Archaeobotany in the Center for the Analysis of Archaeological Materials (CAAM) at the Penn Museum. She is also a Senior Lecturer in the Department of Anthropology in the School of Arts and Sciences. Her research focuses on the study of plant remains from the Near East, Mediterranean, and historical North America across a diverse set of archaeological sites ranging from the Upper Paleolithic (40,000 years ago) to the recent past (19th century). The shared goal of these studies is the reconstruction of everyday life, particularly the identification of activities related to the storage, preparation, and consumption of foods.

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A headshot of a blonde woman smiling at the camera wearing a navy blazer.
Panelist
Dr. Hannah Anderson
Assistant Professor of History at the University of Arkansas at Little Rock

Hannah Anderson is an Assistant Professor of History at the University of Arkansas at Little Rock. Previously, she was the University College Fellow of Early American History at the University of Toronto. She holds a Ph.D. from the University of Pennsylvania. Her book manuscript, Lived Botany: Settlers and Natural History in the Early British Atlantic, examines how settlers exchanged botanical knowledge with Indigenous and African people and argues that these interactions shaped the development of the science of natural history and the fate of England’s Atlantic empire. Dr. Anderson’s work has been supported by many institutions. Most recently, she was a Dibner Long-Term Research Fellow in the History of Science and Technology at the Huntington Library. In the past, she has also received support from the McNeil Center for Early American Studies, the American Philosophical Society, the Consortium for the History of Science, Technology, and Medicine, the John Carter Brown Library, the American Antiquarian Society, the Library Company of Philadelphia, and the New England Regional Fellowship Consortium.

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Headshot of a woman with shoulder-length dark hair and hoop earrings.
Host
Alexandra (Lexa) Edsall, GCP’16, GCP’17
Chair, Board of Advisors, Morris Arboretum & Gardens

Since joining the Morris’s Board of Advisors in 2020, Lexa Edsall has been an active member of the Morris’s Master Planning Working Group. Edsall has a deep career in politics and law, serving in the offices of the deputy attorney general and the solicitor general at the US Department of Justice; as an associate at Covington & Burling; as a judicial clerk to Supreme Court Justice Ruth Bader Ginsburg; and as senior adviser to the general counsel at the US Department of the Treasury. Edsall earned her BA and law degree from Harvard University and has a master of city planning degree from the University of Pennsylvania’s Stuart Weitzman School of Design.

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A bright green and navy logo that reads, "People, Plants & Penn Discussion Series, Morris Arboretum & Gardens of the University of the Pennsylvania."

Lecture Series www.morrisarboretum.org/learn-discover/adults/lecture-series

Lecture Series Lecture Series Image The Pursuit of Happiness: Finding Joy in Nature A virtual   lunchtime discussion exploring the science of nature’s impact on the brain Wednesday, May 20, 2026 • 12 – 1 pm Conversation Only: Members $10 • Non-members $15 Conversation and Forest Bathing: Members $40 • Non-members $45 Extend your experience by adding the in-person Forest Bathing for Health  course on June 6 from 10 am - 12 pm at a discounted rate!  Discount code for lecture attendees will be emailed after registration. Register Today →   Do you ever feel overwhelmed by constant media, packed schedules, and work pressures? Many of us know the relief that comes from stepping outside, breathing fresh air, and reconnecting with the natural world. Join environmental neuroscientist Marc Berman, PhD, and psychologist and neuroscientist Emily Falk, PhD, for an engaging conversation on the science behind nature’s restorative effects. They will explore how time in natural environments can boost energy, sharpen focus, lift mood, and support mental and physical well-being. To experience the calming effects of nature firsthand, visit Morris Arboretum & Gardens this season. In June 2026, the Morris will launch The Pursuit of Happiness: Finding Joy in Nature , a summer exhibition designed to help visitors slow down and savor what it feels like to be immersed in nature. Participants can also extend their experience even further by adding the in-person Forest Bathing for Health  course on June 6 at a discounted rate. Speakers: Image           Marc Berman, PhD Professor of Psychology, University of Chicago; Director, Environmental Neuroscience Lab; author of Nature and the Mind: The Science of How Nature Improves Cognitive, Physical, and Social Well-Being (2025).       Image           Emily Falk, PhD Professor of Communication, Psychology, Marketing, and OID, University of Pennsylvania; Vice Dean, Annenberg School for Communication; Director, Communication Neuroscience Lab and …