The Wonderful World of Intersectional Peonies
- Dedicated to hybrids of herbaceous and tree peonies, with many photos and some descriptive information.
- http://user1285440.sites.myregisteredsite.com/

Peony Garden
- Australian growers of primarily tree peonies present background information on plants and breeding, photos of their hybrids, and links to articles.
- http://www.peonygarden.com.au

Peonies for the Home Landscape - North Carolina Cooperative Extension
- Cultivation resource including variety selection, planting requirement, maintenance, and advise for common problems.
- http://www.ces.ncsu.edu/depts/hort/hil/hil-8501.html

Peony Lady
- Australian grower Elisabeth Rundle presents background information, photo galleries, FAQ, and links.
- http://www.peony.com.au/

The Website From Peony Friends For Peony Friends
- Collection of articles and reference information on garden peonies - from history to hybridizing techniques.
- http://www.paeonia.ch/

Yahoo Groups: PeonyPlus
- Members share messages, files and photos, and trade plants.
- http://groups.yahoo.com/group/peonyPlus/

Yahoo Groups: Peony
- International interest group for discussions and sharing photos and reference information. Includes list of peony resource links. Must join group (free) to access information.
- http://groups.yahoo.com/group/peony/

Linwood Gardens
- Private garden in New York featuring a significant collection of tree peonies. Information about the open days, and photos of the tree peonies of Japanese and American origin.
- http://www.linwoodgardens.org/

Peonies: Queen of the Garden Flowers
- Article about the history, mythology, breeding, and cultivation of herbaceous garden peonies. Tips about care and selection, and descriptions of varieties.
- http://www.munchkinnursery.com/newsletter/peonies/

Peonies...Our Last Passion
- Large collection of links to sites or articles about peonies as well as public and private gardens, nurseries, paintings of peonies, books, and cultural information.
- http://www.euskalnet.net/xirigoien/peonia.htm