June 17, 2021

Holden hosts first exhibit across the botanical garden and arboretum campuses

Fairy Doors

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Holden hosts first exhibit across the botanical garden and arboretum campuses

June 15, 2021

Support, Correction and Mitigation of Weather Damage in the Ash Research Plot

By Gary Weinheimer, Collections Maintenance Supervisor

Support, Correction and Migration of Weather Damage in the Ash Research Plot

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June 11, 2021

Homogenized Biota in an Era of Urban Expansion and Globalization

By Caleb Lumsden, Research Department Intern

Research Department intern Caleb Lumsden shares his knowledge on biotic homogenization in today’s Science on Fridays with Holden blog.

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Homogenized Biota in an Era of Urban Expansion and Globalization

June 9, 2021

A Q&A with One of the Wildest Flowers on the Planet, Currently Living in Our Costa Rica Biome

By Mark Bir, Horticulturist

We are so excited to have a really rare plant-related event happening in the Costa Rica biome. The Titan Arum is getting ready to bloom!

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A Q&A with One of the Wildest Flowers on the Planet, Currently Living in Our Costa Rica Biome

June 4, 2021

2021 Holden Summer Intern Program

By Na Wei, PhD, Scientist

The HF&G’s Research, Community Forestry and Conservation teams are excited about the arrival of the 2021 cohort of interns. This year, HF&G leverages resources and opportunities across departments and campuses to allow our interns gain the finest in knowledge, experience, and skills for future career success.

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2021 Holden Summer Intern Program

June 3, 2021

Tulips in the Trees

By Bernadette Gallagher , Gardener

Check out another kind of “tulip” at the Cleveland Botanical Garden, the flower of the tuliptree, Liriodendron tulipifera. This is one of my favorite tree flowers, and because they bloom so high in the canopy it is a special treat if you get to see some up close. The flowers are green with a bright splash of orange, and the colors mix like tie-dye.

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Tulips in the Trees

May 26, 2021

Behind the Scenes with Cleveland Botanical Garden’s Butterflies

Have you ever wondered where Cleveland Botanical Garden’s biome butterflies come from, how they get here, and what goes into getting them flying in the glasshouse? Let’s walk through each step in this process and learn all about it!

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Behind the Scenes with Cleveland Botanical Garden’s Butterflies

May 24, 2021

A Collection of Stories

At Holden Forests and Gardens there are over 21,000 plants and plant groupings that we consider to be a part of our plant collection. Considering a plant as part of our collection means that that plant has a story to tell.

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A Collection of Stories

May 21, 2021

Hot in the city – Can tree seedlings from urban areas beat the heat?

By Sharon Danielson, MS, Doctoral Graduate Student

Urban development is expanding rapidly, leaving a patchwork of small, isolated forests in its wake. Urban areas tend to have more paved surfaces that retain heat leading to an urban heat island effect. Nearby, forests are subjected to higher temperatures leading to higher evaporative demand from leaf surfaces while soil compaction and altered water flow can lead to limited soil water availability. This may be particularly detrimental for young seedlings that are vulnerable to desiccation.

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Hot in the city – Can tree seedlings from urban areas beat the heat?

May 19, 2021

Signs of Spring

One of the first signs of spring in the Arlene and Arthur Holden Butterfly Garden is the bloom of Aesculus pavia, (red buckeye).  Not only is this native small tree beautiful, but it is an important source of food for pollinators and migrating birds.

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Signs of Spring

May 14, 2021

Presenting Science Virtually

By Sarah Kyker, PhD, Postdoctoral Research Associate

Information sharing is the cornerstone of science. Scientific conferences are a key venue for this information sharing – places where scientists present recent findings and hear what others are working on. Scientists, including the researchers at Holden,  travel around the globe to share information with colleagues. As a scientist myself, attendance at conferences and invited seminars has become one of the best ways to learn about new research in the field ! However, in March of 2020, when it became necessary for us to stay socially distant due to COVID-19, in-person scientific conferences were cancelled.

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May 13, 2021

Be careful where you step, plants are emerging! Fragile new plantings for future beauty

By Beth Whipple, Horticulturist

As you make your way to the Helen S. Layer Rhododendron garden to check out the spring blooms and to visit the Judith and Maynard H. Murch IV Canopy Walk, be careful where you step as you travel alongside Heath Pond. What may look like a long strip of wood chips, is actually the home to hundreds of plants.

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Be careful where you step, plants are emerging! Fragile new plantings for future beauty

May 12, 2021

Big Jobs Call for Use of Heavy Equipment

HF&G Arborist Rick Anielski explains how the use of heavy equipment helps staff at the Holden Arboretum to care and maintain the grounds.

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Big Jobs Call for Use of Heavy Equipment

May 11, 2021

A Year in the Life of A Titan

By Mark Bir, Horticulturist

Behind the scenes in the Cleveland Botanical Garden’s Working Glasshouse, HF&G Horticulturist Mark Bir has been growing a batch of titan arums for a few years. See the progress from the past year in this photo essay.

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A Year in the Life of A Titan

May 10, 2021

It’s the Small Things

HF&G Gardener Mary Lineberger explores the world of miniatures in the natural world with a look at some of the small plants and wonders you can find in spring.

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It’s the Small Things

May 7, 2021

Conifer trait study using multiple arboreta as common gardens

By Randy Long, PhD, Postdoctoral Scholar

We are excited to announce a new project using the conifer collection at the Holden Arboretum led by postdoctoral researcher Dr. Randy Long. He is using arboreta and botanic gardens across the United States to examine trait variation and plasticity in conifer species and how they are influenced by native range distributions.

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Conifer trait study using multiple arboreta as common gardens

May 6, 2021

Garden Mornings and Early Light: An Insider’s Look at the Botanical Garden

By Sabrina Kozsey, HF&G Gardener

HF&G Gardener Sabrina Kozsey gives a glimpse of the beauty of mornings in our outdoor gardens before we are open to the public with a photo essay of the botanical garden’s spring blooms.

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Garden Mornings and Early Light: An Insider’s Look at the Botanical Garden

May 5, 2021

Arbor Day Behind-the-Scenes: Plants, Pots, People

HF&G Nursery Manager Greg Wright gives us a behind-the-scenes look at the redbud seedling preparation and giveaway for Arbor Day 2021.

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Arbor Day Behind-the-Scenes: Plants, Pots, People

April 21, 2021

Holden Forests & Gardens Awarded $200,000 Grant from The Cleveland Foundation for People for Trees

CLEVELAND) March 30, 2021 – Holden Forests & Gardens (HF&G) has received a generous $200,000 grant from the Cleveland Foundation to support People for Trees™, a public awareness initiative that encourages and empowers residents in communities across Northeast Ohio to plant and care for a tree, beginning with making a pledge. The aim is to have 15,000 new trees planted by 2025.

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Holden Forests & Gardens Awarded $200,000 Grant from The Cleveland Foundation for People for Trees

April 21, 2021

Holden Forests & Gardens Launches People for Trees

One of the most significant things we can do to combat the effects of a changing climate right here in Northeast Ohio is to plant a tree. Today, Holden Forests & Gardens (HF&G) is launching a new initiative called People for Trees™ to make it easier for each of us to get involved with this solution.

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Holden Forests & Gardens Launches People for Trees

April 21, 2021

Hundreds of Colorful Butterflies Return to the Cleveland Botanical Garden’s Glasshouse



To celebrate the arrival of spring in a big way, Holden Forest & Gardens presents Return of the Butterflies at the Cleveland Botanical Garden – a visual treat with more than 600 newly emerged butterflies in Costa Rica biome beginning Saturday, April 3rd.



The butterflies in the Costa Rica biome will bring the Glasshouse to life—amazing, colorful, moving, exhilarating life and you’ll see them actively searching for nectar as food sources, flying around. “The sheer proliferation of butterflies is a memorable experience,” says Jillian Slane, director of exhibits and experiences. “You get to interact with them when you walk through the Glasshouse,” she relates. “It’s a strong bond and connection to nature.”

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Hundreds of Colorful Butterflies Return to the Cleveland Botanical Garden’s Glasshouse

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