BAYARD CUTTING ARBORETUM http://www.bayardcuttingarboretum.com
THE BAY SHORE BEAUTIFICATION SOCIETY http://www.beautification.com
KIC/KEEP ISLIP CLEAN www.keepislipclean.org
LONG ISLAND PINE BARRENS SOCIETY https://www.pinebarrens.org
NATURE CONSERVANCY/LONG ISLAND https://www.nature.org
OLD WESTBURY GARDENS https://www.oldwestburygardens.org
PLANTING FIELDS ARBORETUM https://plantingfields.org
SEATUCK ENVIRONMENTAL ASSOCIATION https://www.seatuck.org
SMITHSONIAN ARCHIVES of AMERICAN GARDENS http://www.gardens.si.edu/our-gardens
SOUTH SIDE GARDEN CLUB 