Missouri Marijuana Laws

Current Legality State
Decriminalized and Medical Program
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Missouri State Information Page

  • Medical Marijuana Program only
  • Decriminalized statewide for minor possession
  • Medical patients can possess up to four ounces of marijuana per month; recreational use possession is illegal.
  • Cultivation of recreational marijuana is illegal; medical marijuana patients are allowed to apply for a separate license to grow cannabis; up to six plants for qualified patients
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Missouri has been able to legalize Medical marijuana, but recreational cannabis use has not caught up. 

In 2018, Missouri voters approved Amendment 2 to legalize marijuana use by adults in the state. In 2020, the state began awarding licenses to dispensaries, labs, manufacturers, and growers; sales have increased steadily since marijuana legal dispensaries started operating two years ago. 

State Laws and Offenses

Here’s a list of penalties for Missouri’s possession, sale, and distribution of marijuana, concentrate, or paraphernalia.

  • Marijuana is a Schedule I substance in the state of Missouri
  • Federally, cannabis is still considered a Schedule I Controlled Substance
  • The personal use quantity of marijuana is one ounce or less.
  • Possession of up to ten grams for first-time offenders is a class d misdemeanor, punishable by a max fine of 500 USD, but no jail time.
  • The sale or manufacture of 35 grams or less is a felony that is punishable by up to four years imprisonment by a state court and a fine of up to 10,000 USD.
  • Distribution of 35 grams or less to a minor is a felony punishable by a sentence of three to ten years and a fine of 10,000 USD.
  • 35 grams or less is a felony that stays on criminal records. It is punishable by up to four years imprisonment and a max fine of 10,000 USD.
  • The possession of paraphernalia is a misdemeanor that is punishable by a fine of 500 USD for a first offense. A second offense is punishable by a maximum sentence of one-year imprisonment and a maximum fine of 2,000 USD.

The following is a list of the most common conditions that qualify registered patients for medical marijuana in Missouri: ​​

  • Alzheimer’s disease
  • Any terminal illness
  • Autism
  • Cancer
  • Crohn’s disease
  • Chronic, persistent pain
  • neuropathy
  • Epilepsy
  • Glaucoma
  • Hepatitis C
  • HIV/AIDS or cachexia or wasting syndrome
  • Huntington’s disease
  • IBS
  • Muscle spasms
  • Intractable migraines
  • Lou Gehrig’s disease
  • Multiple Sclerosis
  • Opioid substitution
  • Parkinson’s disease
  • PTSD or other “debilitating psychiatric disorders”
  • Tourette syndrome
  • Sickle cell anemia
  • Cannabis can potentially treat persistent seizures and many mental health disorders.
  • Any “other debilitating or chronic medical condition” that may be alleviated by the medical use of marijuana “in the professional judgment of a physician” especially if prescription medication options have been exhausted.


Book An Appointment

You will schedule an online appointment with a Leafy DOC medical marijuana doctor at a time that is most convenient for you. Provide basic medical history and book your appointment with a licensed medical marijuana doctor.



Consult with a doctor for 15 minutes to evaluate your ailments, and ask any questions you may have about medical marijuana treatment.



Within 24 hours after the evaluation, the doctor will send your certificate via email for your recommendation for medical marijuana. After receiving that recommendation, you can then apply with the state of Missouri to complete the registration process.

Does Missouri accept out-of-state medical cards?

Missouri does not accept out-of-state medical cards, but an adult medical patient can visit a legal dispensary to purchase with an ID. 

When does my Missouri medical card expire?

Medical cards expire one year from the date the patient completes the registration process with the state.

Missouri marijuana DUI laws

The Missouri Department of Health and Senior Services does not make any punishment exceptions for driving under the influence of cannabis; however, the state constitution says it is illegal to drive under the influence of any substance in the United States. 

Missouri marijuana growing laws

A Missouri resident is not allowed to grow marijuana unless you have a medical marijuana cultivation license. Medical cannabis patients are allowed to grow up to six plants for adult use after paying an additional fee when purchasing their medical card. No more than two patients per household may cultivate cannabis in Missouri.

Missouri public consumption laws

Missouri residents or visitors are not allowed to use marijuana in any public place. Public places include parks, sidewalks, schools, and businesses.

Missouri city specific laws

The laws listed here are for the state. Cities, counties, schools, universities, and employers may set their own rules and consequences. Be sure to check how marijuana laws differ in each county or town before you use.

In a recent poll, 66 percent of Missouri voters supported legalized medical marijuana use.

No. Anxiety is not currently recognized as a qualifying medical cannabis condition in Missouri unless a doctor recommends that it is debilitating. 

Medical marijuana inhalation devices are legal in the state of Missouri. State-licensed dispensaries offer vape cartridges for purchase. 

Yes. Medical marijuana patients can cultivate marijuana; up to six plants once they become license holders to grow marijuana.

Yes. Missouri law requires the following for a patient to qualify for a medical card: 

  • Be 18 years of age or older
  • You must be able to provide proof of your Missouri residency
  • You must have a diagnosis that a Physician determines will qualify for medical marijuana use in Missouri.
  • You must submit a signed Physician Certification with your MMP application – and that is where Leafy Doc can help.  We can assist with booking your appointment and then provide the Physician’s approval certificate so that you can apply to get your patient identification card. We also provide an options health coach and helpful resources for new license holders.

Cannabis Policy Reform Timeline

2004: Local decriminalization began with the city of Columbia, MO.  Kansas City and others soon followed.

2014: Missouri lawmakers amended the criminal code to reduce marijuana possession penalties with Senate Bill 491; CBD oil and hemp extract with low THC was legalized

2017: Possession of fewer than 10 grams of cannabis became only punishable by a fine for certain marijuana-related offenses.

2018: Missouri residents passed constitutional amendment 2 (Missouri Medical Marijuana Bill) and legalized marijuana use by adults in the state.  Industrial hemp became legal in the United States.

2020: The state began awarding licenses to dispensaries, labs, manufacturers, and growers; the first dispensary for retail marijuana sales opened in Missouri. There is a ballot initiative being organized and signature gathering for legalizing marijuana recreationally and allowing the use of cannabis products for adults.

Updated 6.14.2022