Hardy Plant Society

year of pub­li­ca­ti­onISBNauthor(s)title
1969978-0-901687-00-5Hardy Plant SocietyList of Members
1994978-0-901687-10-4TeleorderPulmonarias
2001978-0-901687-17-3Joy JonesHardy Geraniums for the Garden
2002978-0-901687-19-7Peter Ernest LewisCampanulas in the Garden
2006978-0-901687-23-4David WayPenstemons (Hardy Plant Society Booklets)