They are grown in various areas in Tohoku region including Yamagata Prefecture and Hachinohe City, Aomori Prefecture, as well as in Chuetsu (middle) and Kaetsu (southern) regions of Niigata Prefecture.
山形県内各地、青森県八戸市など東北地方、新潟県の中越地方から下越地方などで栽培される。