Seeds for green and brown cotton Many years ago there was a company in California that grew a couple of other colors but I don't know that they are still in business. You'd have to do a Google search to see if you can find them. But since Cotton attracts a nasty bug called the Boll Weevil, you will have to check with the local county extension office to see if it is legal to grow in your area. There are many regions of the U.S. that had a big problem eradicating the critter and once they did they levy very heavy fines for anyone growing cotton.