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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.

Highgrove

Withdrawn

Rosa L. · Rose

Heather Mary Horner

1 record

Korelpusch

Active

Rosa L. · Rose

WILHELM-ALEXANDER KORDES

1 record

Interpasru

Terminated

Rosa L. · Rose

Interplant Roses B.V

1 record

IPB074814

Active

Rosa L. · Rose

Interplant Roses B.V

1 record

IPB008816

Active

Rosa L. · Rose

Interplant Roses B.V

1 record

Intercomtiw

Terminated

Rosa L. · Rose

Interplant Roses B.V

1 record

Interchoru

Terminated

Rosa L. · Rose

Interplant Roses B.V

1 record

Interbadti

Terminated

Rosa L. · Rose

Interplant Roses B.V

1 record

Jaczehap

Terminated

Rosa L. · Rose

JACKSON and PERKINS WHOLESALE INC

1 record

HARQUARK

Terminated

Rosa L. · Rose

HARKNESS NEW ROSES LTD

1 record

IPB046310

Active

Rosa L. · Rose

Interplant Roses B.V

1 record

Intminler

Application submitted

Rosa L. · Rose

Interplant Roses B.V.^^^Primavera S.A.R.L.^^^Stéphane Leroi

1 record

Interlolru

Terminated

Rosa L. · Rose

Interplant Roses B.V

1 record

Frytropic

Terminated

Rosa L. · Rose

Gareth R. Fryer

1 record

Frymojo

Terminated

Rosa L. · Rose

Gareth R. Fryer

1 record

Frysilva

Terminated

Rosa L. · Rose

Gareth R. Fryer

1 record

Frykwango

Terminated

Rosa L. · Rose

Gareth R. Fryer

1 record

Delcremorcot

Active

Rosa L. · Rose

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

1 record

Delcremo

Active

Rosa L. · Rose

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

1 record

Deljaucien

Active

Rosa L. · Rose

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

1 record

Delflouge

Application submitted

Rosa L. · Rose

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

1 record

Brinerva

Terminated

Rosa L. · Rose

PETER BRILL

1 record

Bozromafre

Withdrawn

Rosa L. · Rose

Pheno Geno Roses B.V.

1 record

Bozperffas

Terminated

Rosa L. · Rose

Pheno Geno Roses B.V.

1 record

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