Optimist

Active

Brassica oleracea L. (Cauliflower Group) Cauliflower · Vegetables · bred by HM Clause, F

also searched as: оптимист

Variety description

10 August 2026

The hybrid forms a vigorous plant with a good ability for self-wrapping of the head with leaves, which provides protection for the curds against environmental exposure. The produce is distinguished by high density and quality of the curd structure.

The plant possesses resistance to diseases and demonstrates stable results when grown under cold and wet weather conditions. The yield is characterized by uniformity, concentrated maturity, and convenience during harvesting.

The hybrid is intended for the autumn growing period. The resulting produce is suitable both for fresh market sale and for industrial processing.

Sources4

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Countries of admission

5 jurisdictions

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.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

active terminated no record

Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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

Breeder: HM Clause, F 29 Developed the variety
Applicant: SAS HM Clause (FR) 28 Submitted the application to the register
Maintainer: Konus Gloria, Zemun 63 Responsible for variety maintenance

Admission to trade

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

QZ European Union Active

№ 253141
FR France Active

№ 0072729

Application

31 October 1997

Registration

11 July 1999
HU Hungary Terminated

№ 184740

Application

25 January 1999

Registration

31 May 2001

Terminated

20 December 2006
ZA South Africa Withdrawn

№ 2000/5187

Application

13 November 2000

Registration

20 August 2001

Terminated

6 October 2003
SK Slovak Republic Terminated

№ 5712

Application

4 January 2002

Registration

26 March 2004

Terminated

20 October 2006
HR Croatia Protection expired

№ 1002880

Application

17 July 2007

Registration

23 September 2010

Terminated

9 March 2021
RS Serbia Terminated

№ 320-04-4857a/2014-11

Application

25 November 2014

Registration

19 September 2016

Terminated

3 July 2025
GB United Kingdom Active

№ 59/14506

Application

26 November 2018

Registration

31 December 2018

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	253141	—	—	—	Active
FR France	0072729	31 October 1997	11 July 1999	—	Active
HU Hungary	184740	25 January 1999	31 May 2001	20 December 2006	Terminated
ZA South Africa	2000/5187	13 November 2000	20 August 2001	6 October 2003	Withdrawn
SK Slovak Republic	5712	4 January 2002	26 March 2004	20 October 2006	Terminated
HR Croatia	1002880	17 July 2007	23 September 2010	9 March 2021	Protection expired
RS Serbia	320-04-4857a/2014-11	25 November 2014	19 September 2016	3 July 2025	Terminated
GB United Kingdom	59/14506	26 November 2018	31 December 2018	—	Active

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

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Breeder

HM Clause, F

breeder code Optimist

All 29 varieties of company

Registry records

Total records: 8
Jurisdictions shown: 5
Not yet disclosed: 3
First registration: 1999

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