I planted cotton for the first time this year from seed purchased from Southern Exposure, Red Foliated White and Erlene's Green. I started half of them indoors but lost those due to neglectful watering. The ones I started outside did very well, sporting numerous beautiful flowers, though they were planted late and may not mature enough before frost.
I live in Louisiana and when we grow cotton here, even for ornamental purposes we must report it to the US Dept of Agriculture. There is a federal program in place to monitor the boll weevil. So when you grow cotton the Ag Dept will post a boll weevil trap close to the plants. Since it is a federal program, the monitoring might be throughout the country - not just the cotton belt. I don't know.
Friends have tried growing cotton this year. I am waiting to hear how it worked for them. They are growing the naturally colored cottons. Both are avid fiberartists. One raises alpaca, the other angora rabbits. They spin their own yarns from the fiber. They tried flax and hemp in the past, but decided that it was a big bother to process the plant into fiber by hand.
It is amazing how much softer undyed cotton fiber and yarn is. (Foxfibre is one trademarked variety named after Sally Fox who has done extensive research on breeding naturally colored cotton). Commercial cotton is more valuable the whiter it is. Most companies bleach the cotton with harsh chemicals before dyeing it. I think it is odd to bleach cotton white just to dye it dark blue or black again.