There are currently eighteen medical cannabis states, plus Washington, DC, and Guam that have medical cannabis home cultivation. Out of these eighteen states, eleven plus Washington, DC have cannabis legalization of which nine plus Washington, DC have adult-use cannabis home cultivation. Washington state and Illinois have home cultivation for medical cannabis only. Medical and legalized home cultivation plant counts vary by state and local laws. • Alaska allows 6 plants (no more than 3 mature) per adult in household legally with no more than 12 plants (no more than 6 mature) per residence and up to 24 plants in a residence for personal use is protected conduct by a right-to-privacy marijuana provision in their state constitution. • Arizona allows 12 plants medically and only if patient lives 25 miles from a dispensary. • California allows 6 plants medically, or plant count depending on medical necessity and local laws and 6 plants legally including all harvested from those plants within a single private dwelling residence. • Colorado allows 6 plants (no more than 3 mature) medically and legally with a maximum of 12 per residence. • Hawaii allows up to 10 plants whether immature or mature medically depending on necessity with no more than five (5) qualifying patients per location. • Illinois allows 5 plants medically and up to 5 plants is decriminalized with a civil penalty of up to $200 under legalization. • Maine allows 6 mature marijuana plants, 12 immature marijuana plants and unlimited seedlings medically and 3 mature plants, 12 immature plants and unlimited seedlings and all harvested from the plants legally. • Massachusetts allows 6 plants per adult and no more than 12 per residence legally. • Michigan allows no more than 12 plants with no more than 10 ounces medically and legally. • Missouri allows up to six (6) plants, six (6) nonflowering marijuana plants (over four-teen (14) inches tall), and six (6) clones (plants under fourteen (14) inches tall) at any given time in a single, enclosed locked facility medically. Two patients may share one facility with no more than twelve (12) flowering marijuana plants, twelve (12) nonflowering plants, and twelve (12) clones may be cultivated in a single, enclosed locked facility, except when one (1) of the qualifying patients, as a primary caregiver, also holds a patient cultivation identification card for a third qualifying patient, in which case that primary caregiver may cultivate six (6) additional flowering marijuana plants, six (6) additional nonflowering marijuana plants, and six (6) additional clones for a total of eighteen (18) flowering marijuana plants, eighteen (18) nonflowering marijuana plants, and eighteen (18) clones in a single, enclosed locked facility. • Montana allows a patient if they have not named a provider/dispensary to possess 4 mature and 4 seedlings medically. • Nevada allows 12 plants medically and 6 plants legally and possess all of harvested from those plants with limits if patient/person lives within 25 miles from a dispensary unless patient/person is growing specific strains not available at dispensaries and no more than 12 plants per residence. • New Mexico allows no more than 4 mature plants and a combined total of 12 seedlings and male plants medically. • Oklahoma allows 12 plants (6 mature and 6 seedlings) medically. • Oregon allows 6 mature plants and 12 seedlings medically and 4 plants legally. • Rhode Island allows 12 mature and 12 seedlings medically. Also 2 or more patients may cooperatively cultivate 24 mature marijuana plants and 24 seedlings residentially and 48 mature marijuana plants and 48 seedlings non-residentially. • Vermont allows 9 plants (no more than 2 mature) medically and 6 plants and all harvested from the plants legally.
• Washington allows up to 15 plants depending on medical necessity or as a member of a cooperative medically with 6 plants and possess up to 8 ounces of yield and no more than 15 plants per residence yielding up to 16 ounces. • Washington, DC allows 6 plants (no more than 3 mature) legally.