Wilkerson Mill Gardens
Specializing in hydrangeas and offering a selection of other shrubs and some trees. http://www.hydrangea.com/
Hydrangeas Plus
Oregon nursery specializing in a large selection of species and cultivars of hydrangea. Includes images and information. http://www.hydrangeasplus.com/
Hydrangea Select
Hydrangea nursery offers over 75 varieties of climbing vines, shrubs, and tree varieties, along with how-to tips for successful growing. http://www.hydrangeaselect.com/
