Q. I live in northern Indiana. Please tell me how to grow mint. What is the difference between peppermint and spearmint? A. Mint is an important commercial crop in Northwest Indiana, with over 9,000 acres raised in 2007 at a value of over $6 million (USDA National Agriculture Statistics Service http://www.nass.usda.gov/Statistics_by_State/Indiana/index.asp). The bulk of the Indiana mint crop is peppermint, followed by spearmint. Mint belongs to a botanical genus of plants called Mentha. Peppermint is Mentha […]