Chihuahuan Desert Nature Center & Botanical Gardens (Chihuahuan Desert Research Institute)

Rhododendron Species Botanical Garden

Landcraft Garden Foundation

Reynolda Gardens of Wake Forest University

Wood County Arboretum & Botanical Gardens

Toronto Botanical Garden

Mitchell Park Horticultural Conservatory (The Domes)

Bookworm Gardens

Boerner Botanical Gardens

Washington Park Arboretum