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Meet Our Scientists
Join us for unique new opportunities to meet and learn from Holden Arboretums’ renowned scientists. Nature-lovers of all ages can learn about our ground-breaking research and conservation efforts while discovering... more
January 30, 2024
Meet the Birds of the Costa Rica Biome
By Traci S. Williams, Animal & Plant Care Specialist
With the butterflies mostly gone, winter belongs to the birds! The lush and green Costa Rica biome at Cleveland Botanical Garden provides ample opportunity to play “hide-n-seek” with three birds... more
January 29, 2024
Girdling and Invasive Species Management: A Recipe for Healthier Forests
By Chad Knisley, Natural Areas Manager
We have over 2,000 acres of forest at Holden Arboretum. Our conservation department cares for these forests, with goals of improving their health and function. Several years ago, we initiated... more
January 25, 2024
Garlic Mustard and Its Newly Introduced Aphid
By Kaylin Engerman, Norweb Fellow
Garlic mustard is an herb covering forest floors across North America. However, it wasn’t always found here. Garlic mustard is an invasive species brought to the United States from Europe... more
Farming Fungi at Home
Get hands-on experience starting mushrooms in a 5-gallon bucket. more
January 23, 2024
Can inoculated soils promote healthy urban trees? Preliminary results
By Claudia Bashian-Victoroff, MS, Research Specialist
Preliminary results from a Holden research project testing soil inoculations for improvement of urban tree plantings. more
January 19, 2024
Kaylin Engerman
Kaylin Engerman (she/her/hers) the 2023-2024 Norweb Fellow. I am the Norweb Fellow in the Research Department at Holden Forests & Gardens. I am interested in conservation and restoration ecology in... more
January 17, 2024
Smithsonian’s Life in One Cubic Foot comes to the Cleveland Botanical Garden
The Cleveland Botanical Garden is pleased to welcome the visually-stunning “Life in One Cubic Foot” exhibit, opening Saturday, January 27, through Sunday, April 17, 2024. The exhibit follows the research... more
January 16, 2024
A Beginner’s Guide to Pruning
By Maggie Billings, Native Plant and Pollinator Specialist, AmeriCorps Member
Pruning is a must know when it comes to tree and garden care, but why? Pruning often rejuvenates plants and allows them to grow more efficiently. Taking off old growth... more
Foodies & Flowers Cooking Class
Saturday, February 17 from 6 p.m. – 7:30 p.m. Warm up at our limited seating cooking class, where couples will create a dish full of rich hearty flavor to enjoy... more
January 10, 2024
Cleveland’s Beloved Orchid Show Returns to the Botanical Garden
Orchids Forever: Golden Hour opens January 27 (CLEVELAND) – Be amazed by orchids at every turn at the Cleveland Botanical Garden’s annual flower show, Orchids Forever: Golden Hour. Opening on Saturday,... more
January 9, 2024
Protecting Eastern Hemlocks from Tiny Tree-Killing Invaders
By Albert Jackson, Conservation Seasonal
The Holden Conservation Department is on the hunt for tiny tree-killing pests. During the early and mid-20th centuries, two non-native tree dwelling insects were unintentionally introduced to the eastern United... more
January 5, 2024
Blooms of Winter Elegance in Our Costa Rica Biome
By Sadie Smith, Horticulturalist
The long dark days of fall and winter mean fewer flowers in the Costa Rica biome, but these dreary days are when Brunfelsia looks its best. A member of the... more
January 3, 2024
Rapid Upland Forest Assessment (RUFA)
The Rapid Upland Forest Assessment is a quick way to assess midwestern hardwood forest health. Assessment Basics How RUFA Measures Forest Features Want to use RUFA to assess your own... more
December 29, 2023
2023: An incredible year of service to plants, trees and people
By Ed Moydell, President & CEO
By Ed Moydell, President & CEO As we reflect on another year, I am delighted to share some of the success we’ve achieved together at Holden Forests & Gardens in... more
December 21, 2023
Duckweed Hits Classrooms Across Cleveland for a Science Lesson
High schoolers across the Cleveland Municipal School District are honing their research skills, thanks to an NSF-funded program at Holden. Authors: Emily Lewis, Cherise Kent, and Na Wei What started... more
December 19, 2023
Holden Seed Bank
Holden Forests & Gardens is working to combat climate change by fostering resilient forests throughout the region. The Holden Seed Bank is collecting, storing, and redistributing native seeds of local... more
December 18, 2023
Why and How We Collect and Store Tree Seeds at the Holden Arboretum
By Rachel Kappler, Great Lakes Basin Forest Health Collaborative (GLB FHC) Coordinator
Holden Arboretum is home base for the Great Lakes Basin Forest Health Collaborative (GLB FHC). As Holden’s Forest Health Coordinator, I collect a lot of tree seeds. Collected seed for... more
December 14, 2023
Accessibility
General Accessibility Considerations If you have questions about accessibility not answered by the information below, please contact us at [email protected] or by calling the campus you will be visiting. Cleveland... more
Total Eclipse of the Arboretum
Join us for a once-in-a-lifetime total solar eclipse over Northeast Ohio on Monday, April 8th, 2024 at 3:13PM! Celebrate this extraordinary event with us from 11am-5pm on Monday, April 8th... more
Life in One Cubic Foot
Saturday, January 27th through Sunday, April 21st, 2024 The Smithsonian’s, Life in One Cubic Foot, exhibition arrives at the Cleveland Botanical Garden this January, providing an enriching and visually stunning perspective... more
December 6, 2023
Snow and Dormancy: A Delicate Balance Threatened By Climate Change
By Beck Swab, PhD, Director of Conservation and Community Forestry
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... more
December 5, 2023
World Soil Day: Holden’s Soil Ecologists Improving the Odds for Trees in Urban Environments
Efforts are underway to plant trees in Cuyahoga County’s urban areas by the thousands. In these cities, canopy cover is well below the county average, which brings well-documented ill effects... more
December 1, 2023
Soils Under Snow Still Carry On
By Sarah Kyker, PhD, Postdoctoral Research Associate
Winter is a time when we think of dormancy. Chipmunks have begun hibernating. The deciduous trees have lost their leaves. Herbaceous plants are resting belowground as bulbs, rhizomes, etc. But,... more
People for Trees™
Make a difference in
your own backyard.
Plant and care for a tree beginning with making a pledge. We will support each pledge with easy-to-follow instructional toolkits, guidance on how to select the most appropriate tree and where to purchase it, free virtual classes and other ongoing support.
Make a pledgeWe’re proud to work with these distinguished organizations.
