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July 20, 2026
Award-Winning Research Reveals How Wildflowers May Struggle Under Climate Change
In Ohio, we think of fall as the end of the growing season. But for many California wildflowers, fall is a beginning. From the deserts of Southern California to the...
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May 29, 2026
It’s Poppin’: May 29
We’ve almost made it to June, and there is a lot going on in the gardens this time of year. At the arboretum, rhododendrons are still blooming throughout the Helen...
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May 15, 2026
It’s Poppin’: May 15
This cool weather has really kept things poppin’ in the gardens. Although we lament it by this time of year, cool springs make for longer blooming seasons. We have a suite...
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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...
Read moreEvolutionary ecology See all
The changes in species based on their environment
August 11, 2023
Fulbright Scholar Dr. Shweta Basnett to speak on Rhododendron pollinators
Visiting Fulbright Scholar Dr. Shweta Basnett will hold lecture to highlight global diversity of Rhododendron pollinators and sensitivity to climate change. Dr. Shweta Basnett, Fulbright Scholar, University of Maryland, will...
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July 28, 2023
Analyzing Wildflower Phenology Across Botanical Gardens
In addition to being beautiful public greenspaces, botanical gardens and arboreta house valuable biological information. These living museums present a unique opportunity for scientists in the form of ready-made experimental...
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July 26, 2023
Holden Researcher Will Study How Microbes Alter How Plants Respond to Climate Change with Prestigious Award from the NSF
There’s an entire universe of microscopic life, living in us, on us, and all around us, too small for the naked eye to see. The more researchers learn about these...
Read moreLiving collections See all
Exploring our plants and trees
May 29, 2026
It’s Poppin’: May 29
We’ve almost made it to June, and there is a lot going on in the gardens this time of year. At the arboretum, rhododendrons are still blooming throughout the Helen...
Read more
May 15, 2026
It’s Poppin’: May 15
This cool weather has really kept things poppin’ in the gardens. Although we lament it by this time of year, cool springs make for longer blooming seasons. We have a suite...
Read more
May 1, 2026
It’s Poppin’: May 1
It’s May, and it’s definitely Poppin’! The exceptionally warm March we experienced this year has resulted in earlier bloom times than usual for many plants in our collections, including rhododendrons....
Read morePlant communities See all
Groups of plants that share a common environment
March 5, 2025
How Nonnative Plants Respond to Climate Change: Holden Arboretum Researchers Report
Scientists agree: Global warming is real, and it’s happening today. Here in northeast Ohio, we can most clearly see the signs during spells of too-warm-too-early weather in the spring or...
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January 16, 2025
Seedling Scramble: How Warming Changes Plant Communities
Kirtland, OH — Our world is warming, and how exactly that will affect our ecosystems is a critical question. As the climate shifts, plants and animals are already responding in...
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January 8, 2025
Holden’s Wildflower Garden Is a Living Laboratory for Climate Change Research—Here’s What Our Researchers Have Learned
Public gardens like the Holden Arboretum and the Cleveland Botanical Garden are great places to visit. But patrons exploring the latest Frost event might miss that behind the scenes, these...
Read morePlant physiology See all
The internal functions of plants
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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