World Association of Flower Arrangers     www.wafausa.org

National Garden Club                                www.gardenclub.org

Garden Club of America                             www.gcamerica.org

RI Federation of Garden Clubs                  www.rigardenclubs.org

CT Federation of Garden Clubs                 www.ctgardenclubs.org

MA Federation of Garden Clubs                 www.gcfm.org

PA Federation of Garden Clubs                  www.pagardenclubs.org

American Rose Society                               www.ars.org/about_roses/classification.htm

Rhode Island Rose Society                         www.rirs.og

American Hydrangea Society                      www.americanhydrangeasociety.org

North American Lily Society                        www.lilies.org/types.html

Rhode Island Wild Plant Society                 www.riwps.org

New England Wildflower Society             www.newfs.org

Royal Horticulture Society                      www.hrs.org.uk

American Horticulture Society                 http://www.ahs.org/

Rhode Island Orchid Society                   www.riorchidsociety.org

Rhode Island Dahlia Society                   www.rhodeislanddahliasociety.org