Hoyt Arboretum

Mill Creek MetroParks – Fellows Riverside Gardens

Sarah P. Duke Gardens – Duke University

Paul J. Ciener Botanical Garden

North Carolina Botanical Garden

New Hanover County Arboretum

Daniel Stowe Botanical Garden

Old Westbury Gardens

Clark Botanic Garden / Fanny Dwight Clark Memorial Garden, Inc.

New Jersey Botanical Garden at Skylands