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Stark Blue Ribbon

Protection expired

Prunus domestica L. European plum · Fruit crops · bred by STARK BROTHERS' NURSERIES AND ORCHARDS CO. (US)

also searched as: старк блуе риббон

Variety description

10 August 2026

The fruits of this variety are elliptical and slightly asymmetrical in shape. The skin is purple-red in color and covered with a heavy bloom. The flesh is yellow-green in color with a fibrous texture and is characterized by a low juice content.

The tree forms a wide spreading crown. The variety is self-fertile and adapted to USDA hardiness zones 5 through 8. Fruit ripening occurs from late August to early September. The variety is considered versatile, suitable for fresh consumption, canning, and drying.

Sources3
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Countries of admission

1 jurisdiction

Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.

terminated no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Applicant
Pepinieres et Roseraies Georges Delbard (FR) 245 Submitted the application to the register
Rights holder
Stark Bro's Nurseries & Orchards Co.|Louisiana, MO (U.S. corp.) 1 Holds the rights to the variety
Maintainer
Pepinieres et Roseraies Georges Delbard (FR) 245 Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

  • FR France Protection expired

    № 0060015

    Application
    31 December 1986
    Registration
    1 January 1991
    Terminated
    31 December 2010

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

United States of America № 05679506
Protection expired
  1. Application filed 22 April 1976
  2. Registered 10 May 1977
  3. Entry closed 10 May 1994

Records are sourced from official registry publications. Data sources and legal status

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

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Prunus domestica L. · European plum

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

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1 record

Nearby in the species list Späths Fruheste, SPAGNA, Spillinger, Sprite (Kirsebærblomme), Srbova Rana, St Julien, St. Julien A, Stáňa, Stanley, Stanley ISK, Ste Catharine, Stenlei, Stenley, Stenli, Strival, Sugar, Sugar Top, Suhkruploom, SULTAN, Super Yellow

Discussion: Stark Blue Ribbon

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