| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Color Encyclopedia of Daylilies | 978-0-88192-488-6 (0-88192-488-1) | 2000 | John P. Peat |
| The Daylily: A Guide for Gardeners | 978-0-88192-666-8 (0-88192-666-3) | 2004 | " |
| The New Encyclopedia of Daylilies: More Than 1700 Outstanding Selections | 978-0-88192-858-7 (0-88192-858-5) | 2008 | " |