It used to be illegal to grow hemp in Vermont because it is, scientifically, the same plant as marijuana. But hemp doesn’t have nearly as much of the psychoactive substance THC (tetrahydrocannabinol) that marijuana does. (Hemp plants can contain no more than 0.3 percent (by dry weight); marijuana typically contains 5 to 20 percent THC.) With the boom in the use of CBD (cannabidiol) oils […]