naturalized vs naturalised

naturalized and naturalised both are adjectives.

Word	Noun	Adjective	Verb	Adverb
naturalized	No	Yes	No	No
naturalised	No	Yes	No	No

As adjectives, naturalized and naturalised are synonyms defined as:

naturalized and naturalised: planted so as to give an effect of wild growth

naturalized (adjective)	naturalised (adjective)
planted so as to give an effect of wild growth	planted so as to give an effect of wild growth
introduced from another region and persisting without cultivation