Ever wonder how many tree species are native to the U.S.? And what can be done to protect them? Join Dr. Murphy Westwood and Devin to learn how a team of scientists and public gardens recently created a new checklist of the 881 tree species native to the contiguous U.S. and conducted a first-of-its-kind analysis of threats and extinction risk at the species level. The conversation will highlight how this new, freely available resource can support prioritizing approaches to tree species conservation and forest restoration in a changing climate. This program is offered as part of the Garden’s week-long celebration of Earth Day. It is also offered as part of the Garden’s partnership with Morton Arboretum and NatureServe. Presenters: • Dr. Murphy Westwood, Vice President of Science and Conservation at Morton Arboretum, and • Devin Dotson, Senior Communications Specialist, U.S. Botanic Garden This program was recorded on April 25, 2025. Find upcoming programs at www.USBG.gov/Programs

Discover how Landscape for Life empowers home gardeners to create beautiful, sustainable landscapes based on nature’s principles. We’ll explore the core ecological principles the program addresses—healthy soil, water conservation, plant diversity, and wildlife support—and how it continues to evolve to meet today’s environmental challenges. Whether you're new to sustainable landscaping or looking to deepen your knowledge, this session will provide inspiration and practical guidance for creating a thriving, resilient landscape wherever you garden. Developed from the U.S. Botanic Garden and Lady Bird Johnson Wildflower Center’s Sustainable Sites Initiative (SITES), this program is now run in partnership with Colorado State University and provides guidance to help people design and maintain yards that work with nature rather than against it. This program is offered as part of the Garden’s week-long celebration of Earth Day. It is also offered as part of the Garden’s Landscape for Life partnership with Colorado State University. Presenters: Deryn Davidson, Sustainable Landscape State Specialist, Colorado State University Extension Devin Dotson, Senior Communications Specialist, United States Botanic Garden This program was recorded on April 24, 2025. Find upcoming programs at www.USBG.gov/Programs

Want to know more about how plants manipulate pollen behavior? Join host Isabel as she and Ashley explore how honeybee shaking signals relate to floral food availability. Then the conversation continues through a discussion with Peter about the intriguing world of carnivorous plant predation. Presenters: * Isabel Emanuel, USBG American Association for the Advancement of Science Fellow; * Ashley Kim, Graduate Student Researcher, University of California San Diego; * Peter Kann, Graduate Student Researcher, Georgetown University This program is part of a 2-part “Research Lab Look In” summer online lecture series featuring graduate student speakers and their research as it relates to the Garden’s current exhibit, “Fierce Flora: Tales of Survival and Demise.” This program is offered as part of the Garden’s partnership with the American Association for the Advancement of Science and is connected to our exhibit, “Fierce Flora: Tales of Survival and Demise.” This program was recorded on June 25, 2025. Find upcoming programs at www.USBG.gov/Programs