An ADR rose is a winner in the German ADR rose trial (Allgemeine Deutsche Rosenneuheitenprüfung). No chemical pesticides have been allowed since 1997 and breeders often describe the trial as among the most challenging in the world. The trial is set up by a working group that includes the Bund deutscher Baumschulen (German nurseries association), rose breeders, and eleven independent trial stations in Germany. The trial results are analyzed by the Bundessortenamt (Federal Office of Plant Varieties). Roses are tested over three years and criteria analyzed include disease resistance, hardiness, attractiveness, and habit. About 50 cultivars are judged annually and more than 2000 cultivars have been tested since the award's creation in the 1950s. Roses that no longer fulfill quality standards have their certificate removed. As of November 2013, 161 cultivars are recognized.
List of ADR roses
List of former ADR roses
See also List of Award of Garden Merit roses Rose Hall of Fame
Footnotes
References "Removed ADR varieties" (PDF). Allgemeine Deutsche Rosenneuheitenprüfung. 1 January 2013. Pellett, Gary (2010). "Report on Kordes® ADR Roses in the United States, 2010". In Shanley, Pat; Kukielski, Peter; Waering, Gene (eds.). The Sustainable Rose Garden. Newbury Books. ISBN 978-1-935149-16-3. Schwarz, Helmuth; Spellerberg, Burkhard (November 2013). "ADR Rose List 2013" (PDF). Allgemeine Deutsche Rosenneuheitenprüfung. Sieber, Josef (2009). "ADR-Chronik" (PDF) (in German). Allgemeine Deutsche Rosenneuheitenprüfung.
External links
ADR - Performance Testing of New Rose Varieties in Germany Archived 2014-11-04 at the Wayback Machine