Missouri marijuana laws

Published on September 8, 2020 · Last updated November 8, 2022

Is marijuana legal in Missouri?

Current legality status


Cannabis is legal under state law for adults 21+.

Recreational and medical cannabis are legal in Missouri. Missourians voted in recreational cannabis on November 8, 2022, via Amendment 3.

Possession of up to three ounces of cannabis flower, or its equivalent in other products, will become legal for all adults age 21 and older on Dec. 8, 2022. Once state-licensed stores open, consumers may purchase up to three ounces per day.

Cannabis stores could open as early as Feb. 8, 2023.

Missouri medical marijuana laws

In 2018, Missourians passed Amendment 2 for the medical use of marijuana in the state, and in late 2019 and early 2020, the state began awarding licenses to dispensaries, labs, cultivators, and producers. Sales to medical marijuana program participants slowly rolled out as dispensaries opened.

In 2014, state lawmakers in Missouri rewrote the criminal code to reduce marijuana possession penalties with Senate Bill 491. The changes took effect in 2017, and since then, possession of fewer than 10 grams of cannabis is only punishable by a fine.

The Missouri Department of Health and Senior Services oversees the medical marijuana program for the state, including applications and licensing for businesses, patients, and caregivers.

It costs $25 for patients and caregivers to apply for medical marijuana and $100 for a patient cultivation license.

Missouri qualifying conditions for medical marijuana

Missourians with the following conditions qualify for medical marijuana in the state:

  • Cancer
  • Epilepsy
  • Glaucoma
  • Intractable migraines unresponsive to other treatment
  • A chronic medical condition that causes severe, persistent pain or persistent muscle spasms, including but not limited to those associated with multiple sclerosis, seizures, Parkinson’s disease, and Tourette’s syndrome
  • Debilitating psychiatric disorders, including, but not limited to, post-traumatic stress order if diagnosed by a state-licensed psychiatrist
  • Human immunodeficiency virus or acquired immune deficiency syndrome
  • A chronic medical condition that is normally treated with a prescription medication that could lead to physical or psychological dependence, when a physician determines that medical use of marijuana could be effective in treating that condition and would serve as a safer alternative to the prescription medication
  • A terminal illness
  • In the professional judgment of a physician, any other chronic, debilitating, or other medical condition, including, but not limited to, hepatitis C, amyotrophic lateral sclerosis (ALS), inflammatory bowel disease, Crohn’s disease, Huntington’s disease, autism, neuropathies, sickle cell anemia, agitation of Alzheimer’s disease, cachexia, and wasting syndrome

How to get a medical marijuana card in Missouri

The process of obtaining a medical marijuana identification card in Missouri as outlined in 19 CSR 30-95.030 are as follows:

  • Applicants must visit a Missouri-licensed physician (an MD or DO) active and in good standing pursuant to Missouri law, and obtain a physician certification form (PCF).
  • The physician must submit the certification directly to the Department of Health and Senior Services.

Remember: Your PCF cannot be more than 30 days old at the time of application or renewal for your medical marijuana license.

Does Missouri accept out-of-state medical cards? 

Missouri does not practice reciprocity with other states’ medical marijuana cards.

When does my Missouri medical marijuana card expire?  

Missouri medical marijuana cards expire one year after date of issue.

Got your medical card? Find a dispensary in Missouri

Congratulations on getting your medical marijuana card! Here’s a list of licensed dispensaries in Missouri where you can obtain medical marijuana.

Missouri marijuana growing laws

Missourians will be able to grow six plants at home after purchasing a $100 homegrow card, renewable annually. Applications for homegrow cards will be, by law, available no later than Jan. 8, 2023, and the state will start considering those applications no later than Feb. 8, 2023.

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Medical marijuana patients are allowed to grow up to six plants after paying an additional fee with their medical marijuana license to be a patient cultivator.

There are also rules about shared cultivation. This means that, in the state of Missouri, a maximum of two individuals may cultivate in the same space. This can include two patients, two caregivers, or any combination of the licensed two.

Missouri Constitution Article XIV does provide more leeway for the number of plants allowed in a shared cultivation place, stating:

“Normally, assuming two individuals are sharing the space, only 12 flowering marijuana plants may be cultivated in that space, as well as 12 nonflowering plants and 12 clones. However, if one of these two individuals is a caregiver and also a patient with a valid qualifying patient cultivation identification card, that individual may add 6 additional flowering plants, 6 nonflowering plants, and 6 clones to the shared space, so that the caregiver may cultivate plants for the patient under her care and for herself.”

This is the only circumstance under which plants for three patients may be grown in one shared space.

Missouri possession laws

Beginning on Dec. 8, 2022, adults 21 or older may possess up to three ounces of cannabis flower, or its equivalent in other products. Once state-licensed stores open, consumers may purchase up to three ounces per day.

Missouri public consumption laws

As stated in 19 CSR 30-95.030, medical marijuana patients are prohibited from consuming their marijuana in a public place. Public places include many common areas open to the general public such as parks, sidewalks, schools, and businesses.

The rule also states that “for purposes of designating a non-public place within a public place, the owner or entity of any such property may, but is not required to, provide one or more enclosed, private spaces where one qualifying patient may consume medical marijuana.”

Missouri cannabis DUI laws

The Missouri Department of Health and Senior Services does not make any punishment exceptions for driving under the influence of cannabis.

Even if the person has a medical marijuana license, “The patient identification card does not offer individuals protections from violating laws pertaining to operating a motorized vehicle while under the influence.  Nothing in Article XIV permits a person to operate, navigate, or be in actual physical control of any dangerous device or motor vehicle, aircraft or motorboat while under the influence of marijuana.”

Missouri cannabis testing regulations

In late 2019, the Missouri state legislature awarded 10 businesses with licenses as cannabis lab test facilities.

The state has created a Facility Licensing and Compliance Unit to oversee cannabis testing regulations for medical marijuana.

Common questions about marijuana legalization in Missouri

Can medical patients grow in Missouri?

Yes. Medical patients can cultivate up to six plants after paying a cultivation fee and making sure that security requirements are met.

Is Missouri a medical state?

Yes. Medical marijuana is legal for patients that meet the criteria of the Department of Health and Senior Services.

Can you get a medical card for anxiety in Missouri?

No. Anxiety is not recognized as a qualifying medical condition in Missouri.

Does the law require health insurers to cover medical cannabis?

Health insurers are not required by law to offer coverage for medical cannabis.

Can patients use medical cannabis anywhere in Missouri? 

No. There are strict laws about where medical cannabis can be consumed in Missouri.

Can I get cannabis seeds in Missouri?

The DHSS does not provide any support or advice on the means to obtain seeds.

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