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Holden Arboretum, The

United States of America - Ohio - Kirtland

Institution Code: HOL

International Agenda Registration: N
BGCI Member: Y

About the Holden Arboretum, The

The Holden Arboretum is an outdoor living museum that promotes the beauty and importance of trees and other woody plants to create sustainable and healthy communities in the Great Lakes region and beyond.

The Holden Arboretum envisions a Northeast Ohio in which trees, forests, and gardens provide maximum ecological and social benefits to the region’s people and communities.

•Growing Trees and Communities: Interconnected networks of trees and wooded environments – from street trees to home gardens to green spaces – sustain the ecological health of the communities where we live and work.

•Conserving Native Forests: The diversity, health, function, and ecological services of forested ecosystems in human-impacted landscapes are conserved for future generations.

•Engaging Children With Plants: Children have an appreciation for and knowledge of regional plants and their environments, and will be able to apply their understanding to real-life situations.

•Place and Purpose: People value Holden as an enjoyable and enriching place to visit and as an important institution that inspires popular support for improving trees, forests, and communities of the region.

Main Address:
Holden Arboretum, The
9500 Sperry Road
Ohio 44094-5172 United States of America

Telephone: (440) 946-4400
Fax: (440) 602 3857
Primary Email:

Staff Details

  • Director's Name: Clement W. Hamilton, PhD, President and CEO
    Curator's Name: Charles Tubesing, Plant Collections Curator
    Plant Records Officer's Name: Ethan Johnson, Plant Records Curator
  • Total Staff:
    Horticultural Staff Number: 13
    Educational Staff Number: 7
    Research Staff Number: 8
    Administration Staff Number: 3

About the Garden

  • Institution Type: Botanic Garden
  • Status
  • Status: Private: Y
  • Date founded: 1931
  • Physical Data
  • Natural Vegetation Area: Y
    Natural vegetation area: Size: 1215 Hectares
  • Landscaped Area: Y
    Landscaped Area: Size: 242 Hectares
  • Total Area: 1457 Hectares
    Latitude: 41.6026550
    Longitude: -81.3060670
    Annual Rainfall: 1150 mm
    Altitude: 347.00 Metres

Features and Facilities

  • Herbarium: Y
    Herbarium: Number of Specimens: 3051
    Arboretum: Y
    Arboretum Size: 1457
  • Micropropagation/ Tissue Culture Facilities: N
    Seed Bank: N
    Published Plant Catalogue: Y
    Computer Plant Record System: Y
  • Open to public: Y
    Friends society: Y
    Retail Outlet: Shop: Y
    Retail Outlet: Plant Sales: N
    Disabled access: Y
  • Number of Visitors: 87946
    Number of Volunteers: 520

Plant Collections

  • Accession Number: 10467
    Cultivation Taxa Num: 5490
  • Special Collections:Ericaceae (excluding Rhododendron - 56 spp., 182 taxa), Conifers (219 spp., 442 taxa), Quercus (41 spp., 70 taxa), Acer (41 spp., 148 taxa), Viburnum (26 spp., 61 taxa), Malus (18 spp., 161 taxa), Syringa (12 spp., 160 taxa), Rhododendron (57 spp., 718 taxa), Magnolia (19 spp., 122 taxa), Betula (23 spp., 39 taxa), Ohio native plants (464 spp.), nut-bearing trees (114 taxa), hedge (22 taxa).
  • Invasive Species Monitoring: Y
    Invasive Species Policy: N
    ABS Policy: N
    Plant Collection Policy: Y

Conservation Programmes

  • Conservation Programme: Y
    Medicinal Plant Programme: N
    Ex Situ Conservation Programme: Y
    Reintroduction Programme: Y

Research Programmes

  • Biotechnology: N
    Plant Breeding: Y
    Conservation - Biology: Y
    Conservation - Genetics: N
    Data Management Systems and Information Technology: N
    Ecology: Y
    Ecosystem Conservation: Y
    Education: N
    Ethnobotany: N
    Exploration: N
    Floristics: N
    Horticulture: N
    Invasive Species Biology and Control: Y
    Molecular Genetics: N
    Pollination Biology: N
    Restoration Ecology: N
    Seed/Spore Biology: N
    Systematics and Taxonomy: N
    Sustainability: N
    Pharmacology: N
    Agriculture: N
    Land Restoration: N
    Urban Environments: N

Education Programmes

  • Visitor/Education Centre: Y
    Education Signs in Garden: Y
    Public Lectures/Talks: Y
    Education Booklets/Leaflets: Y
    Guided Tours: Y
    Permanent Public Displays: Y
    Special Exhibitions: Y
    Courses for School Children: Y
    Courses for University/College Students: N
    Courses for General Public: Y
    Education Programme: Y
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