Well that's different then. It's all about the soil, ya know? Those digletts have different stuff when they help fertilise the plants.
If ya take a Rawst Berry from Kanto and plant it in Kalos, it'll have the Kalosian flavor, even though the original was from Kanto. If you take a Cherri Berry from Kalos and plant it in Hoenn, it's gonna have the Hoenn taste.