Grand Slam
ActiveBrassica oleracea L. (White Cabbage Group) · White cabbage
Yusuke KATO, JP
Brassica oleracea L. (White Cabbage Group) White cabbage · Vegetables · bred by RIJK ZWAAN SAMENCHUHT UND SAMENHANOLLUNG GmbH, DE
also searched as: чессма
10 August 2026
Early-maturing hybrid with a maturation period from transplanting to marketable maturity of 50–60 days. The head shape varies from round-pointed to round, with a gray-green surface color. The heads are characterized as dense and compact, weighing from 0.7–1.0 kg to 2.0–2.5 kg.
The hybrid is intended for the fresh market. Suitable for cultivation in open field, film greenhouses, under glass, or non-woven covering material. The recommended planting density is from 40 000 to 60 000 plants per hectare.
3 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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 254795
№ KOW 00068
№ 1517
№ 2915
№ 0911188
Records are sourced from official registry publications. Data sources and legal status
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Nearby in the species list Champion, Chana, Chancelor, Charleston Wakefield, CHARLESTON WAKEFIELD 'MITOL', Charmant, Checkmate, Cheers, Cheeta, Chekmeit F1, Chessma F1, Chief, Chinook, Chopin, Christy, Cilema, Cilema F1, Cilion, Clarence, Clarinet