Colleagues and Friends from Around the Globe Share Memories and Appreciation of the Longtime Garden President
This past spring, we shared with profound sadness that Dr. Peter H. Raven — a botanist of global stature who transformed the Missouri Botanical Garden into one of the world’s leading centers for botany and became one of the most influential voices for biodiversity and conservation — had passed away at the age of 89.
For nearly four decades, Dr. Raven served as President and Director of the Garden while also holding the George Engelmann Professorship of Botany at Washington University in St. Louis. When he assumed leadership of the Garden in 1971 at age 35, the institution was modest in scope. By the time he retired in 2010, he had transformed the organization into a global hub for research, education, horticultural display, and sustainability, with far-reaching scientific partnerships and conservation programs.
Here at our Discover + Share blog, we wanted to bring together in one post a range of ways the Garden, peer organizations, and individuals from around the globe have shared the impact Dr. Raven made on them.
The Garden’s Bulletin
The fall 2026 issue of the Garden’s Bulletin magazine features a special package on Dr. Raven’s life and legacy, including a timeline of some of his most significant honors and contributions to botanical science.
Celebration of life
On Saturday, June 13, which would have been Dr. Raven’s 90th birthday, people from around the world gathered at the Missouri Botanical Garden to celebrate his life. Below, you can watch a recording of this celebration:
Shared Memories
Several colleagues and family members who took part in the Celebration of Life spoke also with Shiloh Documentary Films. The filmmakers added these memories as an epilogue to their documentary about Dr. Raven’s life, available below:
Global Impact, Global Recognition
Following his passing, people around the world shared stories of Dr. Raven’s impact on their lives and work. Major publications including National Geographic, the New York Times, Nature, and Mongabay commemorated Dr. Raven’s life with articles on his lasting legacy. The St. Louis Post-Dispatch, the St. Louis American, and St. Louis Public Radio reflected on his local and global work. Nine PBS talked with Garden President and Director Dr. Lúcia Lohmann about Dr. Raven’s life and legacy. Organizations like the Danforth Center, Washington University, the University of Missouri-St. Louis, and the University of California Los Angeles shared remembrances of their beloved colleague.
In addition, hundreds of students, scientific peers, friends, family, and colleagues from across the globe shared stories of Dr. Raven with the Garden. Below, we are honored to share just a small sampling of those reflections:
— Dr. A.K. Pradeep, Department of Botany,
The botanical world mourn the passing of Dr. Peter Hamilton Raven at the age of 89, an extraordinary scientist whose life was devoted to understanding and safeguarding the diversity of plant life on earth…. A powerful and persuasive voice for the protection of our planet’s biological heritage, Dr. Raven tirelessly advocated for environmental stewardship. He worked across borders to build strong collaborations with institutions and researchers worldwide. His efforts fostered a spirit of international collaboration that continues to benefit botanical science today.
Beyond his towering scientific achievements, Dr. Raven will be remembered as a kind and generous human being- one who inspired colleagues, mentored young scientists, and brought people together through warmth and integrity.
The global botanical community has lost a giant, but his vision and contributions will continue to guide us for generations to come.
Calicut University, Kerala, India
I started my public garden career in the Climatron in 1996 and had the pleasure of interacting with Dr. Raven a few times. Wow! He loved that I added Heliconus butterflies to the Climatron to show firsthand how they coevolved with passiflora vines.
— Tom Hecker, Director of Horticulture, Peace River Botanical & Sculpture Gardens
One time I was walking with Dr. Raven outside through the Garden and he bent over and picked up the smallest piece of litter and disposed of it. This left a huge impact on me as I coevolved with plants to later become butterfly / insectarium director and horticulture director, then eventually a CEO of a zoo/ garden. I can’t walk past any litter in a garden. He always remembered me at APGA conferences and made feel special. He was a hero for the planet and will be always remembered and missed.
— Professor Wang Xiaoquan, Director General for Institute of Botany, Chinese Academy of Sciences; Vice President for China National Botanical Garden
It is with profound sorrow that the entire community at the Institute of Botany, Chinese Academy of Sciences, has learned of the passing of Professor Peter H. Raven. The world has lost one of the most visionary botanists of our time and a truly distinguished scientist. We deeply mourn his passing and the immeasurable loss to the scientific community. On behalf of our institute, I wish to extend my deepest condolences to you. Our thoughts are with you during this difficult time.
Without ever knowing it, Dr. Raven shaped my worldview in subtle and profound ways… I asked for his advice on how to fortify against what I think of as The Spiritual Challenge to conservation professionals: staying energetically engaged in the face of a punitive firehose of loss. I’ll never forget his serious engagement with my question…He counseled never losing sight of the beauty of what remains and leveraging that appreciation as motivation to keep fighting for conservation.
— Martin Buchert, geographer and conservation planner
I think of that advice nearly every day, with gratitude each time for that brief exchange that could so easily have been answered with a throw-away reaction. Thank you Peter, for your efforts on behalf of Life on Earth, including rising generations of human beings.
Peter Raven will long be remembered as a giant amongst botanic garden leaders. He was supportive and helpful when I made contact soon after starting as Director the Royal Botanic Gardens Kew in 2007. I was especially proud that we were able to honour Peter’s career as the inaugural recipient of Kew’s International Medal a couple of years later.
— Professor Stephen D. Hopper AC, The University of Western Australia
Peter was always accessible to share his advice and expertise to me and my children. Considering his
— Susan Lammert, Garden Member
prominence this was an extraordinary gift.
During his leadership at the garden the institution has become one of the most important botanic gardens in the world. I am proud to have been a member for most
of my adulthood.
Help Honor Dr. Raven’s Legacy
We invite you to make a fully tax-deductible gift to the Dr. Peter H. Raven Memorial Fund today to honor his extraordinary legacy and support the work he championed. Dr. Raven’s family will be notified of gifts without reference to gift amount. Commemorative gifts of $100 or more will be listed in the Garden’s Bulletin.
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