As long as their roots can support nutrients. Furthermore, it can grow even without adding fertilizers or chemicals; and that's what's great about the environment. Additionally, cannabis has the ability to clean toxins underground. Hemp is what was originally called marijuana – it is a plant when grown for its fiber; extracted from the barrel and used to make rope, strong fabrics, paper, fuel, food, plastic, composite material, cotton and building material. And this may also be why they don't want to legalize marijuana – if half or almost all of the companies of the mentioned things lost their sales, it would put a deficit on their companies. Why? Because people will benefit from it; making your own stuff using marijuana rather than buying it from companies that sell it at such high prices. Another thing that some people who don't agree with legalizing marijuana is that they look for all the substances that could happen. It could be addictive, abuse, abuse use and some other negative factors. But in the research it says there is no evidence that it can do this