Spanish garlic vs giant garlic

Spanish garlic and giant garlic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Spanish garlic	Yes	No	No	No
giant garlic	Yes	No	No	No

As nouns, Spanish garlic and giant garlic are synonyms defined as:

Spanish garlic and giant garlic: European leek cultivated and used like leeks

Other synonyms of Spanish garlic include Allium scorodoprasum, rocambole, sand leek.

Spanish garlic (noun)	giant garlic (noun)
European leek cultivated and used like leeks	European leek cultivated and used like leeks