Phenology is the study of connections between plant and animal life cycles through the seasons. Learn more by viewing the presentation.
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May 11, 2026
What Rhododendrons Know About Their Environment
As our world begins to warm, scientists are looking for early detection systems that will tell us what’s already being affected and help us predict what’s to come. Plants have...
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May 4, 2026
How Much Sun Is Too Much Sun?
Have you ever noticed a plant whose leaves were turning red or purple, especially in a particularly sunny spot? The plant may be making the red pigment you see to...
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May 24, 2024
Meet the Future of Rhododendron Research
Members of the Medeiros Lab in the Holden research department organized an Early Career Researcher Mini-Conference and research poster session at the American Rhododendron Society Annual Convention which took place...
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December 6, 2023
Snow and Dormancy: A Delicate Balance Threatened By Climate Change
As winter blankets the world in a pristine layer of snow, a silent transformation takes place in the natural world. Snow cover and dormancy are interconnected elements in the delicate...
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November 29, 2023
Rhododendron minus: A colorful mystery wrapped in a riddle
Rhododendron minus is a woody evergreen shrub native to the southeastern United States, with a range that extends from North Carolina and Tennessee south into Georgia and Alabama. Across this...
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November 8, 2023
Holden Researchers Uncover How a Resilient Tree Acclimates to Stressful Environments
The eastern red cedar (Juniperus virginiana) is a hardy tree native to the eastern U.S. But lately it’s been encroaching on ecosystems out West — could its physiology be the...
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December 8, 2022
The Sweet Side of Winter: Carbohydrate Dynamics during Cold Acclimation
By Samuel Harbol, Norweb Fellow Deciduous plants such as maple trees lose their leaves in winter, and this helps them to survive cold temperatures, but what about our evergreen friends,...
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October 18, 2022
Winterizing the Rose Beds
It has been quite the productive season in the Swetland Rose Garden at the Cleveland Botanical Gardens! Out went the old roses, and in went the new. Perennials and bulbs...
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April 25, 2022
It’s the Tree’s Knees
If you’ve recently visited the Arboretum, you may have noticed what appears, at first glance, to be a flash-mob of squirrels convening around Blueberry Pond. Thanks to some winter rejuvenation...
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