Yes
None, unless you have a license. Even then, you can only get a license (And grow) in states that have legalized medical Marijuana and the Marijuana can only supply medical Marijuana dispensaries.
As of my last knowledge update in October 2021, Ohio allows medical marijuana use, but personal cultivation of marijuana plants is not legal for recreational use. Medical marijuana patients can grow their own plants only if they meet specific conditions, and the law permits only a limited number of plants. It's essential to check the most current laws and regulations, as they may have changed since then.
It is ILLEGAL in Canada to grow marijuana, but in most of Canada it is tolerated.
it is made at a marijuana farm were they grow the plants
NO NO
Marijuana grows everywhere... because people grow it!! as long as you have seeds for it and know how to plant it
marijuana
you dont
no
No
Yes
The US federal government does not currently allow anyone to grow marijuana legally, even though some state governments have decided to allow marijuana for medical purposes only, not for recreational purposes. There are some countries which allow marijuana to be grown and used for medical purposes, and there are even some which allow it to be grown and used for recreational purposes, so the answer to your question is, it depends upon the jurisdiction that you are in.