Almost 40 rose varieties were tested for three years - and only the most resilient and beautiful varieties received the coveted "ADR-Rose" quality mark. ADR stands for Allgemeine Deutsche Rosenneuheitenprüfung (General German Rose Novelty Testing), which took place for the 75th time this year. One of the 12 locations throughout Germany where the rose varieties are tested is at the Bavarian State Institute for Viticulture and Horticulture (LWG). It is considered the hottest and driest trial location.

Many people are involved in the ADR test at the LWG, where one of the 12 inspection locations is: This year, ten new rose varieties received the coveted quality mark. (Klaus Körber © LWG Veitshöchheim)

Multiple criteria
The independent examiners examined the various new varieties from various manufacturers based on several criteria. It's about the health and garden value of roses. Nine of the ten best already have a name, and most of them are already in stores: Flamingo®, Goldkrone®, Mentor®-Rose, Perennial Domino®, Pink Chantilly®, Purple Siluetta®, Romantic Siluetta®, Simsalabim®, Street Colors® La Grande Motte. In total, there are currently more than 170 varieties listed in the ADR rose list. For comparison, More than 1,600 rose varieties have been tested since the ADR trial was passed.

As part of the ADR trial, new rose varieties are tested for their garden value. The greatest importance is resistance to leaf diseases such as powdery mildew, rust, and sooty mold. Since its founding in the middle of the last century, the ADR has stood for the highest quality standards for garden roses and is also considered one of the toughest rose tests in the world. The ADR working group has set itself the goal of simplifying the selection of attractive and healthy rose varieties. This not only promotes environmentally and resource-saving cultivation, but also breeding progress.

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