The variety is characterized by the formation of large, dense, and hard heads, for which it received its name, which translates as "iron head". The plant possesses the blistered leaves characteristic of Savoy cabbage and is capable of forming heads covered by broad leaves.
This variety is a historical type of cabbage and is encountered under various synonyms, including "Grande de Invierno 2", "Tête de fer" or "IJzerkop". The plant is traditionally used for cultivation in the autumn-winter period due to its good resistance to the effects of low temperatures.
Sources4
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Countries of admission
2 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.
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