The bare minimum would be lowryder 2 in a 2qt pot, on a sunny widow sill. With miracle grow organic potting soil. Water when it's light, cut it down in 10 weeks, hang it for 4 day's jar it for two weeks. You'll get something to smoke.
You won't get great results without like 50 hours of reading min and then you'll know the initial investment is a $300-$600 bucks. But if you do it right yield value pays for itself soon enough.
Think of this site as an online college course, you get what you put in, all the info is here and people will help and answer your INFORMED questions.