Mary Jo Wegner Arboretum & East Sioux Falls Historic Site

South Carolina Botanical Garden

Piedmont Physic Garden

Magnolia Plantation and Gardens

Hatcher Garden & Woodland Preserve

The Pennsylvania Horticultural Society

The Louise Arnold Tanger Arboretum at LancasterHistory

Lake Erie Arboretum at Frontier Park (LEAF)

Haverford College Arboretum

The Oregon Garden