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Holden Arboretum
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Open today: 9:00 am – 5:00 pm

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The Holden Arboretum encompasses an expansive 3,500 acres including lush woodlands and 200 acres dedicated to thoughtfully cultivated gardens. Plan Your Visit

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Botanical Garden
See what’s happening and on the horizon

Open today: 10:00 am – 5:00 pm

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Cleveland Botanical Garden features outdoor and indoor gardens with native, rare and exotic collections, plus specially curated specimens planted in themed glasshouses. Plan Your Visit

It takes a village to help the forest.

We are experts in research, conservation, and community forestry, and strive to make an impact in Northeast Ohio—and beyond.

Projects, Stories & News
Holden Forests & Gardens’ President & CEO Jill Koski is Stepping Down

Holden Forests & Gardens’ President & CEO Jill Koski is Stepping Down

Board of Directors will launch a national search for the next CEO to lead one of the largest public gardens in the country (Cleveland) September 6, 2022 – Holden Forests & Gardens, the combined entity of the Holden Arboretum and the Cleveland Botanical Garden today announced that Jill C. Koski, president and CEO, will be… »

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Holden Forests & Gardens Makes Commitment to Mitigate Detrimental Effects of Climate Change

Holden Forests & Gardens Makes Commitment to Mitigate Detrimental Effects of Climate Change

Leading up to Earth Day 2022, Holden Forests & Gardens (HF&G) has adopted a climate change statement recognizing that climate change is real and providing facts and information about climate change, its implications, and some ways we are working to mitigate climate change at the Cleveland Botanical Garden and the Holden Arboretum. We hope this… »

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People for Trees™

People for Trees™

People for Trees is generously sponsored by: Here are some of the things our People for Trees have said. What do you love about trees? “Planting them and watering them!” “We planted a Magnolia tree in honor of a neighbor and the flowers are beautiful. It has become a special tree for our whole neighborhood.”… »

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<strong>Why are there bags on the Rhododendrons?</strong>

Why are there bags on the Rhododendrons?

October 7, 2022

Why public gardens are both beautiful and useful too. Jean H. Burns, Associate Professor, Department of Biology, Case Western Reserve University If you have walked around Holden Arboretum in the last few summers, you may have noticed white pollination bags on some of the Rhododendrons. The Rhododendron gardens are not only beautiful to walk through,… »

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Working Woods

Working Woods

Most of Ohio’s forest is privately owned. Private landowners face a variety of challenges when it comes to land stewardship including succession planning, pests, disease, poor logging practices, pressure from logging companies, and invasive plants. Good forestry addresses these challenges by working with nature so both people AND the woods can thrive.  Learn more about… »

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Learn more about our research and community forestry efforts.

From the Blog
Holden Forests & Gardens’ President & CEO Jill Koski is Stepping Down

September 6, 2022

Holden Forests & Gardens’ President & CEO Jill Koski is Stepping Down

Holden Forests & Gardens, the combined entity of the Holden Arboretum and the Cleveland Botanical Garden today announced that Jill C. Koski, president and CEO, will be leaving after five successful years leading the nonprofit organization devoted to celebrating and studying Northeast Ohio’s trees, plants and broader natural world.

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<strong>Why are there bags on the Rhododendrons?</strong>

October 7, 2022

Why are there bags on the Rhododendrons?

  If you have walked around Holden Arboretum in the last few summers, you may have noticed white pollination bags on some of the Rhododendrons. The Rhododendron gardens are not only beautiful to walk through, they are also a valuable scientific collection of diversity from all around the world! The National Science Foundation has awarded the Burns lab a grant, which takes advantage of this amazing collection (DEB 2217714). We are exploring the mechanisms that allow some plants to thrive under stressors, like disease, drought, or flooding. Understanding these mechanisms is becoming ever more important as climate changes threaten global food security.

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<strong>The Much-Maligned Goldenrods</strong>

October 6, 2022

The Much-Maligned Goldenrods

It’s the end-of-summer hay fever season once again and people are feeling it. The poor goldenrod is often blamed, so it’s time for me to get on my soapbox again to defend a plant.

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Apple Picking with Children

October 6, 2022

Apple Picking with Children

Apple Picking with Children

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Shinrin-yoku Blog

October 6, 2022

Shinrin-yoku Blog

Although there is a pond, you will not be jumping in! You will not be bathing in the literal sense. Instead, engage all five senses on your stroll through this cathedral of trees. You see, “Shinrin-yoku” is the Japanese term for “Forest Bathing” or immersion in nature.

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Science on Friday: Trivia Answers and Farewell to Mushroom Month

September 30, 2022

Science on Friday: Trivia Answers and Farewell to Mushroom Month

September is ending and fall is in full swing. As the leaves on the trees start to change and the wind turns chilly, we bid farewell to mushroom month. But have no fear, mushrooms will continue to appear in lawns and woods for a few more weeks! The end of mushroom month means that it is time to announce our trivia answers and to congratulate our participants!

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