American Conifer Society
American Horticulture Society
American Hosta Society
American Rose Society
North Coast Hosta Society
Ohio State University Web Garden
Institutions
The Dawes Arboretum, Newark, Ohio
The Holden Arboretum, Kirtland, Ohio
Secrest Arboretum, Wooster, Ohio
Longwood Gardents, Kennent Square, Pennsylvania
The U.S. National Arboretum, Washington, DC
Royal Botanical Gardens, Hamilton, Ontario