The plant forms a very large rosette and head, features dense dark green leaves and black seeds. The variety shows high yield when grown in the winter period in hydroponic systems.
The variety possesses resistance to bolting, pink rib, downy mildew, and frost. It exhibits moderate resistance to tip burn and russet spotting, while being susceptible to big vein disease.
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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.
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data for which we do not publish: their registry licenses have not yet been verified.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.
Also known as
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
Winter SupremeprimaryUS
WINTERSUPREMEES
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
Variety in registries
Regions of admission, rights holders, and status of plant breeders' rights
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