I grew it one year, but it did not grow to be large. I think I needed more heat and summer or I started it late. I was not impressed and decided I was better off getting it at the local Indian Grocery store or Oriental market. (Not a plant that does well in this or your growing region.)
Just for kicks, here is a link to a commodity market for Ginger in India! INR indian Rupee I believe!
Ginger(Green) Market Rates in Karnataka
Thanks Pete. I found a youtube after I posted. It looks difficult in my region.