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Variety traits

Rose Double-flowering

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.

Sources8

Varieties of Rose mentioned in the description

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.

KARNEVAL

Terminated

Rosa L. · Rose

STEEN JØRGENSEN

DK
1 record

JACDELI

Terminated

Rosa L. · Rose

BEAR CREEK GARDENS Inc. (US)

FR
1 record

JEANNE CROIX

Withdrawn

Rosa L. · Rose

Dominique CROIX-RANCHON & Jacques RANCHON (FR)

FR
1 record

Hot Ring

Active

Rosa L. · Rose

Iuroaea Gheorghe

RO
2 records

HORCOHORT

Terminated

Rosa L. · Rose

Colin Horner (GB)

FR
1 record

INTROPI

Terminated

Rosa L. · Rose

INTERPLANT BV (NL)

FR
1 record

INTERSTREEP

Terminated

Rosa L. · Rose

INTERPLANT BV (NL)

FR
1 record

Hranatovyi Braslet

Application submitted

Rosa L. · Rose

Klymenko Zinaida Kostiantynivna

UA
2 records

HARGLISSER

Terminated

Rosa L. · Rose

HARKNESS ROSES and Co Ltd (GB)

FR
1 record

HARZELT

Protection expired

Rosa L. · Rose

HARKNESS ROSES and Co Ltd (GB)

FR
1 record

HANNE

Terminated

Rosa L. · Rose

PETER KAASTRUP

DK
1 record

Hratsiinyi Tanok

Active

Rosa L. · Rose

Chyzhankova Valentyna Ivanivna, Rubtsova Olena Leonidivna,

UA
2 records

GUI AROU 1

Active

Rosa L. · Rose

Roseraie Guillot Scea (FR)

FR
1 record

HARFERVOUR

Terminated

Rosa L. · Rose

HARKNESS ROSES and Co Ltd (GB)

FR
1 record

GAUROU

Withdrawn

Rosa L. · Rose

Roseraies GAUJARD (FR)

FR
1 record

EMERA

Terminated

Rosa L. · Rose

WERNER NOACK

ES
1 record

DORGRAN

Terminated

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

FR
1 record

DORAVIG

Withdrawn

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

FR
1 record

ENIJA

Active

Rosa L. · Rose

Dzidra Rieksta

LV
1 record

DUFTWOLKE

Terminated

Rosa L. · Rose

MATHIAS TANTAU

DK
1 record

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