Information about membership and events, a primer on botanical distinctions, articles on various topics, and a photo gallery of hybrids developed by members.

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.

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.

Article about the history, mythology, breeding, and cultivation of herbaceous garden peonies. Tips about care and selection, and descriptions of varieties.