What is the ruling on growing or trading cannabis (marijuana)? It is a plant that has less powerful narcotic effects than cocaine, for example, and it is also used for medical purposes.
If the purpose of growing it is not for preparing a narcotic substance, then there is no problem in it per se, as long as it has a permissible use as determined by rational people, such as the use of its fibers for making woven fabrics, stationery products, and ropes.