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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.

Maccarpe

Protection expired

Rosa L. · Rose

Samuel McGredy

DK
3 records

Macyefre

Protection expired

Rosa L. · Rose

Samuel McGredy

FR
3 records

Mactru

Protection expired

Rosa L. · Rose

Samuel McGredy

DK
3 records

KORconta

Active

Rosa L. · Rose

Wilhelm Kordes / Tim-Hermann Kordes / Margarita Kordes in Fa. W. Kordes' Söhne Rosenschulen GmbH & Co KG

DE
3 records

Korfeining

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

DE
3 records

Korbravet

Terminated

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

PL
3 records

Kortonetec

Terminated

Rosa L. · Rose

Wilhem Kordes

DE
3 records

Jacretou

Active

Rosa L. · Rose

Zary Keith (US)

FR
3 records

Jaclover

Active

Rosa L. · Rose

Zary Keith W.|Thousand Oaks, CA

FR
3 records

Interlav

Protection expired

Rosa L. · Rose

MR PETER ILSINK

FR
3 records

Ivtahockey

Active

Rosa L. · Rose

STICHTING DLO-CENTRUM VOOR PLANTENVEREDELINGS-EN

NL
3 records

Jacimgol

Active

Rosa L. · Rose

DR KEITH ZARY

NL
3 records

Jacale

Protection expired

Rosa L. · Rose

Warriner, William A.|Tustin, CA

FR
3 records

Ingrid Bergman

Protection expired

Rosa L. · Rose

PERNILLE & MOGENS N.OLESE

ES
4 records

Interiza

Terminated

Rosa L. · Rose

G.P.Ilsink

NL
3 records

Helkleger

Protection expired

Rosa L. · Rose

Karle Hertzel

DE
3 records

Harqueterwife

Protection expired

Rosa L. · Rose

R. HARKNESS & CO. LTD.

DK
3 records

Harukfore

Protection expired

Rosa L. · Rose

HARKNESS ROSES and Co Ltd (GB)

FR
3 records

Helsufair

Protection expired

Rosa L. · Rose

Karl Hetzel

DE
3 records

Fryminicot

Protection expired

Rosa L. · Rose

Fryers Nurseries Ltd

NL
3 records

Fryministar

Protection expired

Rosa L. · Rose

Fryers Nurseries Ltd

NL
3 records

Dicquarrel

Terminated

Rosa L. · Rose

Dickson Nurseries Ltd

DE
3 records

Dutch Gold

Protection expired

Rosa L. · Rose

WISBECH PLANT CO LTD

DK
3 records

Delstrimen

Active

Rosa L. · Rose

Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.

FR
3 records

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