As the International Registration Authority for the genus Dahlia, the RHS maintains a list of cultivar names used in the genus.
Application to register a Dahlia cultivar name
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The International Register of Dahlia Names
Further reading
anon. (1969). Tentative Classified List and International Register of Dahlia Names. London: RHS.
Supplements 1 to13 are also available.
The 13th Supplement to The International Dahlia Register is now available as a download in Adobe Acrobat (pdf) format (96KB). Click here to download it
