Holden Forests & Gardens is a premier public garden featuring a rural and urban campus, with a world-class plant & environmental science center.

We conserve ecosystems, work to understand climate impacts on the Lower Great Lakes region, and foster a love for nature.

Holden Arboretum
Summer adventure awaits

Just 30 minutes from downtown Cleveland, the Holden Arboretum is a living museum of exquisite collections of plants and trees on 3,500 acres with miles of trails, gardens. and woodlands. Plan Your Visit

Cleveland Botanical Garden
Discover lush summer botanicals

In the heart of University Circle, Cleveland Botanical Garden is an urban oasis with mesmerizing gardens and curated glasshouses, offering a refreshing escape from the bustle of city life. Plan Your Visit

Holden scientists are making groundbreaking discoveries & saving our native trees.

Holden scientists, conservationists and community foresters are award-winning and nationally acclaimed.

Holden Seed Bank

Holden Seed Bank

A seed bank for regional restoration at the Holden Arboretum is working to combat climate change by collecting, storing, and redistributing native seeds of local ecotype to foster resilient forests.

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Beech Leaf Disease

Beech Leaf Disease

Holden is a leader in the study of beech leaf disease, a new forest pathogen sweeping across North America from its epicenter in northeastern Ohio. Our work has helped identify the means of the disease’s spread, and continuing work aims to reveal the mechanisms of the disease as well as a path to breeding trees resistant to the disease.

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As our climate changes, understanding how plants respond is critical for preparing for and mitigating what’s to come. An important driver of how plants respond to their environment is the plant microbiome, the bacteria and other microbes that live in tandem with the plants.

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