• Adelman Peony Gardens Oregon grower offers several hundred varieties from an alphabetically arranged photo catalog.

• Brothers Herbs & Peonies Oregon nursery specializing in tree peonies. Photo catalog of home-grown and imported varieties.

• Cricket Hill Garden Specializes in Chinese tree peonies, also offering herbaceous varieties. Located in Connecticut.

• Golden Port International Importers of Japanese and Chinese cultivars of peony trees.

• Heze East Flowers China based grower of peony trees and paeonia rockii.

• Hollingsworth Peony Nursery Breeder and propagator of approximately 600 varieties of peonies. Online catalog with photos and descriptions. Located in Missouri.

• La Pivoinerie D'Aoust Peonies Features field grown herbaceous peonies, including a variety of classic and older cultivars.

• Nature's Promise Peonies Chinese tree peonies, herbaceous peonies, and Chinese herbaceous peonies. Offers a free newsletter.

• New Peony Farm Retail and wholesale nursery in Minnesota, offering several dozen varieties and a few publications.

• Peony Garden Selling trees and herbaceous peonies from the US, Europe, Japan, and China.

• Peony Land Offers a selection of Chinese tree peonies.

• Peonynursery Lithuanian breeders and growers of herbaceous and tree peonies. Sells hybrid peonies, including their own crosses, worldwide.

• Pivoines Capano Canadian nursery cultivating and breeding winter hardy peonies, including intersectional hybrids, herbaceous hybrids, and species.

• Reath's Nursery Michigan nursery offering about 200 varieties of herbaceous and tree peonies, as well as a small selection of irises.

• Rice Creek Gardens Minnesota grower offering sales of bare root peonies, shipped in September.

• Roger's Fernleaf Peony Farm Information on the history, growing, and purchase of Fernleaf Peonies.

• Southern Charm Peonies New Zealand grower of herbaceous and tree peonies, offering about a hundred hybrids.