Associations
Alabama Dahlia Society, American Dahlia Society, Comox Valley Dahlia Society, Doing Dahlias, Fraser Valley Dahlia Society, Greater Philadelphia Dahlia Society, John E. Stowell Dahlia Society, Michigan Dahlia Association, Mid Island Dahlia Society, Minnesota Dahlia Society
American Dahlia Society Classification and Handboo
Classification lists, glossary of terms, awards and honors.
Cal's Dahlia Home Page
Color photographs of dahlias plus links to other pages.
Dahlia Diseases
Brief descriptions of diseases that afflict dahlias.
Dahlia-net
Discussion group where growers can talk about dahlias.
Dahlias in B.C.
Information and articles on the culture and breeding of Dahlias.
The National Dahlia Collection
Supplies rooted cuttings and pot tubers of cultivars and species.
WebEgan Dahlia Garden
Home gardeners showcase their dahlia collection and provide information and links for growing dahlias.