http://www.virtualseeds.com/tobacco-main.html
Tobacco used to be widely grown in home gardens, and is still widely grown as an ornamental (Nicotiana).
Unless you live in a rural area, curing it is unlikely to be easy enough to make it worth your time.
Extracted nicotine is a deadly poison, to insects animals and people, and has been illegal for many years I think.
Is the tobacco good enough to use for cigars?!
Tobacco was grown in the streets of Jamestown in colonial America, and commonly used in lieu of hard money.