• Chadwick Arboretum, Ohio State University
• Cincinnati Zoo & Botanical Garden
• Cleveland Botanical Gardens
• Cox Arboretum
• The Dawes Arboretum
• Fellows Riverside Gardens
• Franklin Park Conservatory & Botanical Garden
  
• The Herb Society of America
• The Holden Arboretum
  
• Kingwood Center
  
• The Lloyd Library and Museum
• Stan Hywet Hall and Gardens
  
• Toledo Botanical Garden

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