Don’t miss out on an unforgettable experience at the 2025 Rhododendron Species Symposium, hosted by the Rhododendron Species Botanical Garden (RSBG) with generous support of the Helen G. Walker Foundation.
Join us for an inspiring two-day event in Federal Way, Washington, where gardeners, plant lovers, and experts from around the world come together to celebrate the beauty, science, and artistry of gardening.
Whether you’re a seasoned horticulturist or just starting your gardening journey, this symposium offers something for everyone. Be inspired and educated with fascinating lectures on the conservation of rare and endangered plant species, guided garden tours, lively discussions, and a special Q&A panel* with this year’s special keynote speaker and RSBG horticulture staff.
We’re thrilled to welcome Keynote Speaker, Seamus O’Brien, head gardener at the National Botanic Gardens, Kilmacurragh. He’ll share his vast expertise and botanical insights, all while you enjoy a delicious banquet dinner in great company. You’ll also hear from the RSBG’s Executive Director of Horticulture and Curator, Steve Hootman, on recent introductions and taxonomic changes in a horticulturally significant subgroup of Rhododendron species.
*Want to shape the conversation? If there’s a specific topic you’d like covered during our Q&A panel, simply share your suggestions or questions in the comment box on the registration form.
Secure your spot today for this exciting and enriching event—you won’t want to miss out! If you’re traveling to the Symposium, be sure to book your hotel here!
Click the button below for more information on full Symposium details including event schedule, speaker list, lectures, lodging, workshops, and more.
Rhododendron Species Symposium 2025
April 25, 2025 - April 26, 2025
Friday - Saturday
Click the button below for the full schedule
Rhododendron Species Botanical Garden & Courtyard by Marriott
2525 S 336th St
Location Map: See below