Aldi is adding 900 stores in the next decade, including 400 by the end of 2018. (File photo)
Aldi is adding 900 stores in the next decade, including 400 by the end of 2018. (File photo)

Aldi announced today it is adding 900 new stores over the next decade in a move that would make it the third-largest grocery retailer in America.

The discount grocery chain will spend $3.4 billion to expand to 2,500 stores by 2022, according to an announcement. Four-hundred of the new stores will open in the coming year. The additions would put…