Mae Cennin Cymreig hefyd yn dod yn 19eg aelod o deulu cynnyrch GI Cymru, gan ymuno â chynnyrch mawr eraill fel Halen Môr Môn, Cig Oen Cymreig, Cig Eidion Cymru a Pembrokeshire Earlies. Mae pob aelod o'r teulu yn Gymreig i'r carn ac wedi'u cysylltu'n uniongyrchol â'r tirweddau a'r morluniau sy'n eu meithrin.
Welsh Leeks also becomes the 19th member of the Welsh GI family of products, joining the likes of other great produce such as Anglesey Sea Salt, Welsh Lamb, Welsh Beef and Pembrokeshire Earlies. Each family member is Welsh to the core and uniquely linked to the landscapes and seascapes which nurture them.