The only issue I had was that I didn't have anywhere to grow it as I rent a flat there is no garden, but here in the UK there is a Remanent of World War II (maybe even earlier) that would assist me. Allotments, I don't know if other country's have these but here in the UK the are large patches of land that are divided up in to smaller patches know as an Allotment. The purpose was to allow people a place to grow their own vegetables when food was not abundant. These are still in use today but people use them for many different things, some people turn them in to a garden, or use them for there main purpose and grow vegetables. This allotment cost me £5 a year!! plus i had to join the allotment society which cost me £20, so £25 for a year of renting a piece of land, not bad!
I will use the allotments to grow tobacco which caused something of a stir in the allotment community as not a lot of people know it is legal to grown your own tobacco even here in the UK. However there is one rule here which is important, you can grow tobacco in the UK and dry it legally as long as it not for commercial use. you can even dry it and chop it up to a smoke-able product provided you do not sell it.
You should check the laws in your area to see what you can do.