Delaware
- Delaware Center for Horticulture - Wilmington
- Hagley Museum and Library - Greenville
- Mt. Cuba Center - Greenville
- Nemours Mansion and Gardens - Wilmington
- University of Delaware Botanic Gardens - University of Delaware, Newark
- Winterthur Museum and Grounds - Winterthur
Read more about this topic: List Of Botanical Gardens And Arboretums In The United States