Variety traits
Rosa L.
Double-flowering is a decorative trait in roses defined by the number of petals in a flower, which varies from simple forms with fewer than 8 petals to very double forms having over 70.
In the reference 1 377 varieties crop Rose, where this is mentioned in the description.
The classification of roses by the degree of double-flowering includes simple forms (up to 8 petals), semi-double (8–15), moderately double (21–29), medium double (30–39), double (more than 40), and very double (over 70 petals). This trait is often associated with the transformation of stamens and pistils into petals, which, in extreme cases, leads to the reduction of reproductive organs and the necessity for vegetative propagation only.
A high degree of double-flowering increases the decorative appeal of the flower, but it decreases its resistance to atmospheric precipitation, causing the petals to become waterlogged and rot. The stability of this trait depends on growing conditions and the age of the plant, while for commercial cut flower varieties, double-flowering is a targeted breeding trait.
General information about the subject — on the page Double flowering / Reversion.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Rosa L. · Rose
Philippe Laperriere (Roseraie Laperriere) (FR)/Richard Laperriere (Roseraie Laperriere) (FR)
Rosa L. · Rose
HAENCHEN| Dr. sc. Eckart Haenchen
Rosa L. · Rose
Klymenko Zinaida Kostiantynivna, Zykov Kostiantyn Ivanovych,
Rosa L. · Rose
KORDES WILHELM| Wilhelm Kordes / KORDES TIM-HERMANN| Tim-Hermann Kordes / KORDES| Margarita Kordes in Fa. W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
Monique Laperriere (FR)
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
Philippe Laperriere (Roseraie Laperriere) (FR)/Richard Laperriere (Roseraie Laperriere) (FR)
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
W.KORDES' SOEHNE ROSENSCHULEN GMBH & CO KG
Rosa L. · Rose
Philippe Laperriere (Roseraie Laperriere) (FR)/Richard Laperriere (Roseraie Laperriere) (FR)
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
R.KORDES
Rosa L. · Rose
Wilhelm Kordes / Tim-Hermann Kordes / Margarita Kordes in Fa. W. Kordes' Söhne Rosenschulen GmbH & Co KG
Rosa L. · Rose
Ruhe
Rosa L. · Rose
Mark Gergely / Mark Gergelyne
Rosa L. · Rose
ELISABETH ADAM SEGUIN MULTIPLANTS IN VITRO
Rosa L. · Rose
Łukasz Rojewski
Rosa L. · Rose
Herbert Hempelmann
Rosa L. · Rose
BEAR CREEK GARDENS Inc. (US)
Rosa L. · Rose
BEAR CREEK GARDENS Inc. (US)