Transformational gift supports new research laboratories, public learning spaces, and the first look at the expanded Center for Plant & Environmental Science

KIRTLAND, Ohio (September 15, 2026) —Holden Forests & Gardens today announced a $1.5 million gift from longtime supporters Sally and Larry Sears to support the expansion of its scientific research facilities at The Holden Arboretum. The gift will help create a new structure adjacent to the Ellen Corning Long and T. Dixon Long Center for Plant and Environmental Science, complete with research laboratories, public engagement spaces, and collaborative work environments that expand the organization’s nationally recognized science and conservation programs while strengthening opportunities for education and community engagement.

Larry and Sally Sears have dedicated decades of leadership and philanthropy to advancing science, education, and cultural institutions throughout Greater Cleveland, especially those in University Circle. Both are alumni of Case Western Reserve University and longtime supporters of Holden Forests & Gardens. Larry earned his BS in Electrical Engineering from the Case Institute of Technology before founding Hexagram Inc., an electronics company he led for 35 years. After retiring from Hexagram Inc., Larry became an Adjunct Instructor at CWRU. Larry currently serves as a member of Holden Forests and Gardens’ Research and Living Collections Advisory Committee.

Sally graduated from Flora Stone Mather College for Women where she later earned her MS in Library Science. Her commitment to science and education has informed her leadership as Chair Emerita at the Cleveland Museum of Natural History, where she served as board chair during the museum’s prize-winning renovation and expansion.  Together, the couple has championed environmental education programs that inspire young people to explore and care for the natural world.

Their support of Holden reflects a lifelong belief that a connection to nature helps build healthier communities. In recognition of their extraordinary generosity, the first floor of the new structure will be named in honor of Sally and Larry Sears.

“We’ve always believed that science, education, and curiosity have the power to improve lives and strengthen communities,” said Sally and Larry Sears. “Holden’s research is helping us better understand and protect the natural world while inspiring future generations of scientists and

conservationists. We’re honored to help create a place where discovery, collaboration, and learning can flourish.”

“Scientific discovery is essential to protecting our forests, understanding our changing environment, and preparing healthier, more resilient communities for the future,” said Ed Moydell, president and CEO of Holden Forests & Gardens. “Larry and Sally Sears have long believed in the power of science and education to improve lives. Their extraordinary generosity will help us expand our research capabilities, inspire future conservation leaders, and connect more people with the discoveries taking place at Holden every day.”

Thanks to the Searses’ investment, Holden is also sharing the first public look at the next chapter of its scientific enterprise. The organization also unveiled the first architectural renderings of the planned expansion, offering a glimpse of the approximately 10,000-square-foot addition that will transform the Science Center into a dynamic hub for research, collaboration, and public learning. Designed by the Cleveland-based architecture firm Bostwick Design Partnership, the goal is to begin the project in 2027.

The flexible learning laboratory will support both scientists working within the Center and educational programming for students, partners, and the broader public, further strengthening Holden’s role as a regional leader in science education and community engagement.

As one of the nation’s largest arboreta, Holden’s 3,500 acres of forests and living plant collections serve as a living laboratory where scientists study forest health, biodiversity, climate change, emerging pests and diseases, soil ecology, and ecological restoration. Research conducted at Holden helps develop practical, science-based solutions that benefit Northeast Ohio while contributing knowledge to conservation efforts across North America.

The expansion builds upon the Center’s growing national reputation. Holden scientists have helped advance understanding of Beech Leaf Disease, developed new diagnostic tools for forest health, and continue research addressing invasive pests, climate resilience, forest restoration, urban forestry, and reforestation. In 2025 alone, Holden’s Science & Conservation team published 17 peer-reviewed scientific papers.

Sustainability has been integrated throughout the building’s design. The exterior will incorporate durable fiber cement panels manufactured with more than 50 percent recycled materials, while bird-friendly glazing featuring a ceramic frit pattern will help reduce bird collisions. Interior materials have been selected to reduce embodied carbon, maximize recycled content, and promote occupant well-being. An outdoor plaza inspired by natural forms will seamlessly connect the building with the surrounding landscape, reflecting Holden’s mission of celebrating and advancing the understanding of the natural world.

Renderings released today illustrate the project’s nature-inspired architecture and the welcoming public spaces that will become the new front door to Holden’s scientific enterprise.

Additional fundraising for the Science Center expansion campaign is ongoing.

“Our vision for this expansion extends beyond creating additional space,” said Moydell. “It is about creating an environment where scientists, students, educators, conservation professionals, and our community come together to discover, collaborate, and develop solutions that will benefit forests and people for generations.”

About Holden Forests & Gardens
Holden Forests & Gardens is made up of two of Northeast Ohio’s most important environmental and cultural institutions — The Holden Arboretum and Cleveland Botanical Garden — whose mission is to connect people with the wonder, beauty, and value of trees and plants, to inspire action for healthy communities. One of the largest public gardens in the country, Holden Forests & Gardens has over 22,000 member households and an annual attendance of over 350,000 for whom we strive to provide inspirational and educational visitor experiences. Holden’s science, conservation, and urban forestry work is widely acclaimed and helping to save native trees in the Great Lakes region and beyond.

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For a high-res image of Mr. & Mrs. Sears,

or for renderings of the Science Center expansion,

contact Stacey Vaselaney at (216) 905-0908 or slvaselaney@slvpr.com