Some examples of states where individuals can legally grow marijuana for medical use at their homes are Alaska, California, Michigan and Hawaii, based on laws passed by state legislatures. However, under federal law in the United States, it is a felony to grow any amount of marijuana, including for medical use, according to Norml.org.
Under Ballot Measure 8 in Alaska, people with a prescription from their doctor are able to legally possess up to 1 ounce of medical marijuana and six plants (three mature and three immature), according to Alaska.gov. Alaskan residents must sign for medical marijuana use at the AK Marijuana Registry Online.
In California, under Proposition 215, patients and their caregivers are legally able to grow six mature plants or 12 immature plants with a prescription from a doctor and a diagnosis of certain illnesses, according to CANorml.org.
In Michigan, patients and caregivers are allowed to grow up to 12 marijuana plants. Plants must be kept in an locked indoor facility or, if they are grown outdoors, they should not be visible to passers-by, according to Norml.org.
In Hawaii, patients and their caregivers are allowed to grow their own adequate supply of medical marijuana, which is up to seven plants at a time under Act 241, according to the State of Hawaii Department of Health.