by "native areas" i assume you mean JAPAN from whence it originally was brought to "renew and rejuvenate" the soil of the post-war south (post CIVIL war, that is)??
actually, whilst visiting the atlanta botanical gardens some years back, i asked the cashier in the gift shop whether they sold seed for kudzu and she looked at me as if i'd just landed from another planet---as well she should--IF...IF i lived in a kudzu zone; but, i explained to her i lived in utah, usda zone UT5b and it would definitely die when winter came but perhaps during the spring and summer months it might rejuvenate MY dead soil (yeah, i know....you're all laughing your boots off....but you gotta understand, all this happened BEFORE i went to skool to learn about plants and stuff). i, myself, almost died laughing when the horror on the woman's face extended to her next statement; to wit:
"Y'all DON'T WANT KUDZU!!!!!!!!!! Why, y'all kin heer kudzu GROW!!!!"
well, i was right---it died when the temp hit below 30F and my attempt to winter them over by pot-planting them and bringing them in was an abysmal failure (sigh) as was 99% of almost everything else i "TRIED" to grow in those days.