Michigan countries/us/mi.yaml
Adults 21+ may possess 2.5 oz, including no more than 15 g of concentrate. At their residence they may keep 10 oz plus cannabis harvested from plants lawfully cultivated there, with no separate weight cap on that harvest. Anything above 2.5 oz at home must be in a container or area secured with locks or other functioning security devices.[@2]
Adults 21+ may grow up to twelve plants per residence for personal use, out of public view and in an enclosed, secured area. The cannabis harvested there is allowed at that residence in addition to the ordinary 10 oz home allowance.[@2]
Overages are civil infractions at first, not crimes.[@1]
Private use, plus licensed consumption lounges.[@3]
Licensed shops since December 2019, with some of the lowest prices in the country.[@2,4]
Cova Software — Michigan dispensary laws, designated consumption establishments MJBizDaily via MMJDaily — Michigan May cannabis sales, $59.73 average ounce (2026) Michigan Supreme Court — People v. Sinclair, 387 Mich. 91 (9 March 1972), via Justia The Marijuana Conviction: A History of Marijuana Prohibition in the United States 2 unchanged
Adults 21+ may possess 2.5 oz, including no more than 15 g of concentrate. At their residence they may keep 10 oz plus cannabis harvested from plants lawfully cultivated there, with no separate weight cap on that harvest. Anything above 2.5 oz at home must be in a container or area secured with locks or other functioning security devices.[@1,2]
USD
upto 2.5 oz · treatment legal · note 15 g concentrate max; 10 oz at home plus the residence harvest, over 2.5 oz · upto 5 oz · treatment civil · term Civil infraction · fine 500 · note First offence, over 5 oz · treatment criminal · term Misdemeanor · fine 500 · note Larger amounts are trafficking felonies
Adults 21+ may grow up to twelve plants per residence for personal use, out of public view and in an enclosed, secured area. The cannabis harvested there is allowed at that residence in addition to the ordinary 10 oz home allowance.[@1,2]
USD
upto 12 plants · treatment legal · note Per residence; secured and out of public view, over 12 plants · upto 24 plants · treatment criminal · term Misdemeanor · fine 500 · note Personal use, over 24 plants · treatment criminal · term Felony · note Larger and commercial grows are felonies
Proposal 1 (November 2018) legalised adult use; licensed shops opened in December 2019.[@2,4]
2, 4
Ann Arbor wrote the protest script. John Sinclair got nine and a half to ten years for two marijuana cigarettes in 1969; Lennon and Ono headlined his 1971 freedom rally, the state supreme court reversed his conviction in 1972, and the city cut possession to a $5 fine that year.[@5,6] [John Sinclair received a lengthy sentence for two cigarettes.](/history/us-sinclair-sentence-1969/) [Lennon and Ono headlined the freedom rally.](/history/us-john-sinclair-freedom-rally-1971/) [The court reversed his conviction in 1972.](/history/us-sinclair-conviction-reversed-1972/) [Ann Arbor set a $5 fine.](/history/us-ann-arbor-five-dollar-fine-1972/) [Hash Bash began in 1972.](/culture/traditions/hash-bash/)
5, 6