Information may have changed since this list was compiled. Check for latest edition and prices with each publisher before ordering. American Association of Botanical Gardens and Arboreta.
Most gardens are in the U.S. and Canada.
A Guide to Garden Tours, Garden Days, Shows and Special Events. Edited by Lois G. Rosenfeld. Calendar of events including flower shows and open-garden festivals, arranged by state by city by date. Includes list of garden tour operators. Jane McCarthy and Laurily K. Epstein.