list some uses of tobacco DVIDS - News Chemicals in Cigarettes and Tobacco:

In our study, 27.4% of those who intended not to vote reported being a current smoker and a low former-smoking prevalence rate (13.8%)

The seed should be placed on top of the seed compost, do not cover it with soil. Plants should be started 4-6 weeks before the intended outdoor planting date. Tobacco grows very well in our heavy-duty seed starting trays. In addition to needing warm soil temps, you can also use a germination heat mat to help in the germination process. Your soil pH should between 5.8 and 6.0. Be sure to keep the soil moist while Seeds are in the germination stage. Tobacco seedlings are usually ready to be transplanted once they reach 7-8" tall. Transplant tobacco seedlings in the evening to prevent the plants from drying out and make sure you water thoroughly after transplanting. Water daily until established

I did it when I was a tech

There have been some studies looking into this, including one from the National Library of Medicine