Peony Garden
- Australian growers of primarily tree peonies offer some of their hybrids for sale in a variety of sizes. Also background information on plants and breeding and photos of named and unnamed hybrids.
- http://www.peonygarden.com.au

Full Bloom Farm Peonies
- Offers several dozen varieties from an online photo catalog. Printable order form.
- http://www.fullbloomfarmpeonies.com/

Brothers Herbs & Peonies
- Oregon nursery specializing in tree peonies. Photo catalog of home-grown and imported varieties.
- http://www.treony.com/

Pivoines Capano
- Canadian nursery cultivating and breeding winter hardy peonies, including intersectional hybrids, herbaceous hybrids, and species.
- http://www.pivoinescapano.com/

Cricket Hill Garden
- Specializes in Chinese tree peonies, also offering herbaceous varieties. Located in Connecticut.
- http://www.treepeony.com/

Reath's Nursery
- Michigan nursery offering about 200 varieties of herbaceous and tree peonies, as well as a small selection of irises.
- http://www.reathsnursery.com/

Adelman Peony Gardens
- Oregon grower offers several hundred varieties from an alphabetically arranged photo catalog.
- http://www.peonyparadise.com/

Hollingsworth Peony Nursery
- Breeder and propagator of approximately 600 varieties of peonies. Online catalog with photos and descriptions. Located in Missouri.
- http://www.hollingsworthpeonies.com/

New Peony Farm
- Retail and wholesale nursery in Minnesota, offering several dozen varieties and a few publications.
- http://newpeonyfarm.com/

Southern Charm Peonies
- New Zealand grower of herbaceous and tree peonies, offering about a hundred hybrids.
- http://www.southerncharm.co.nz/

The Peony Gardens
- New Zealand supplier of tree and herbaceous peonies to the wholesale and retail trade worldwide, certified to export to EU and USA. Partly illustrated catalog.
- http://www.thepeonygardens.co.nz/

Rice Creek Gardens
- Minnesota grower offering sales of bare root peonies, shipped in September.
- http://www.ricecreekgardens.com/

Simmons Paeonies
- Specialist root producers of more than 300 varieties of intersectional and herbaceous peony hybrids, both for the garden market and for commercial growers.
- http://www.peony.net.nz

Roger's Fernleaf Peony Farm
- Information on the history, growing, and purchase of Fernleaf Peonies.
- http://www.fernleafpeony.com/

Peonynursery.com
- Lithuanian breeders and growers of herbaceous and tree peonies. Sells hybrid peonies, including their own crosses, worldwide.
- http://www.peonynursery.com/

Peony Meadows
- Offers varieties of herbaceous and tree peonies.
- http://www.peonymeadows.com/

Peony Land
- Offers a selection of Chinese tree peonies.
- http://www.peonyland.com/

The Peony Garden
- Iowa nursery featuring peonies and antique cultivars.
- http://www.peonygarden.net/

Nature's Promise Peonies
- Chinese tree peonies, herbaceous peonies, and Chinese herbaceous peonies. Offers a free newsletter.
- http://www.naturespromise.com/

La Pivoinerie D'Aoust Peonies
- Features field grown herbaceous peonies, including a variety of classic and older cultivars.
- http://www.paeonia.com/

Heze Guohua Peony Research Institute
- Breeder and grower of Chinese herbaceous peonies and tree peonies.
- http://heze.51.net/index.htm

Heze East Flowers
- China based grower of peony trees and paeonia rockii.
- http://www.ourpeony.com

The Garden Window
- Offers tree peonies imported directly from China.
- http://www.thegardenwindow.com/