Macmillan · Timber Press, Incorporated
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Color Echoes: Harmonizing Color in the Garden | 978-0-02-548185-5 (0-02-548185-1) | 1994 |
| Designing With Perennials | 978-0-02-548180-0 (0-02-548180-0) | 1991 |
| Time-Tested Plants: Thirty Years in a Four-Season Garden | 978-0-88192-746-7 (0-88192-746-5) | 2005 |
J. H. · J. Harper · "P. H." · P.J. · Pamela Harper