I tried some last year with pieces I got from the Indian grocery store. I planted it in the middle of summer, and it took about 2 weeks to come up. Since I got such a late start on the season, I figured I wouldn't dig it up in the fall, and I would try to overwinter it in the
greenhouse -- bad idea. Once temps drop below about 50F, the leaves yellow and die. I still have it in the plastic pot, and I hope it will resprout when the weather warms up.
I would suggest growing it as a container plant. You can get 4-6
roots in a 10" pot, and it only grows about a foot high. I understand that you can cut pieces of the leaves off and cook with them, but I didn't try that. If you have a nice sunny window, it will probably be happier than being outside in a temperate climate.