MissouriCannabis Growing Guide
Everything you need to grow cannabis at home in Missouri. Laws, climate tips, recommended strains, and local resources.
Age Requirement
21+ years old
Flowering Plants
6 per person
Total Plants
Up to 18
License Required
$100 fee
Legal Overview
Missouri legalized home cannabis cultivation through the Amendment 3 (Missouri Marijuana Legalization) on December 8, 2022.
What's Allowed
- •Growing 6 flowering plants per person with a cultivation license
- •Growing 6 non-flowering plants over 14" per person
- •Growing 6 clones/seedlings under 14" per person
- •Up to 18 plants total per licensed individual
Not Allowed
- •Growing without a valid cultivation license ($100 fee)
- •Exceeding 6 flowering plants per person or 12 per household
- •Growing in an area not enclosed and locked
- •Growing plants visible to the general public
Location Requirements
Where and how you can legally grow cannabis in Missouri.
Enclosed & Locked
All plants must be grown in an enclosed, locked facility at your private residence. It doesn't have to be elaborate—just a space with a lock.
Private Residence
Cultivation must take place at your private residence. The locked grow space must prevent unauthorized access.
Not Publicly Visible
Plants cannot be visible to the general public. Indoor growing or a fully enclosed outdoor structure is required.
Making Concentrates
Rules for making cannabis concentrates and extracts in Missouri.
Allowed Methods
- •Rosin pressing
- •Ice water hash
- •Dry sift
- •Infusing with food-safe oils
Prohibited Methods
- •Butane (BHO extraction)
- •Propane
- •Other flammable gases or liquids
Important: Volatile solvents (butane, propane, etc.) are prohibited for home extraction in Missouri. Stick to solventless methods like rosin pressing and ice water hash.
Renting? Important Considerations
What renters in Missouri need to know about home cultivation.
- ⚠️Review your lease for cannabis-related clauses
- ⚠️Landlords may prohibit cannabis cultivation
- ⚠️Federally subsidized housing prohibits cannabis
- ⚠️Your cultivation license is tied to your residence address
- ⚠️Consider indoor, odor-controlled growing to be a good neighbor
Compliance Tips
Best practices for staying compliant with Missouri cannabis laws.
✓Get Your License First
Missouri requires a $100 personal cultivation license from DHSS before you can legally grow. Apply online through the Missouri Department of Health.
✓Understand Plant Categories
Missouri counts plants in 3 categories: flowering (6 max), non-flowering over 14" (6 max), and clones under 14" (6 max) = 18 total per person.
✓Lock Your Grow Space
Your grow area must be enclosed and locked. A simple lock on a closet or room door satisfies this requirement.
✓Household Limits
No more than 12 flowering plants per household, even if multiple licensed adults live there.
✓Keep Your License Current
Your cultivation license must be renewed and tied to your current residence address.
Climate & Growing Season
USDA Zone
USDA Zones 5b-7a
Outdoor Season
May - October
Last Frost
Mid April - Early May
First Frost
Mid October - Early November
Solid outdoor growing potential with appropriate strain selection.
Missouri has a humid continental climate with hot, humid summers. The Ozarks region is slightly cooler. Summer heat and humidity can cause issues - watch for mold and pests. Indoor growing is popular for climate control. The generous 18-plant limit (with license) allows for continuous harvests.
Recommended Strains for Missouri
These strains are particularly well-suited for growing in Missouri's climate.
Frequently Asked Questions
How many cannabis plants can I grow in Missouri?
With a cultivation license, Missouri adults 21+ can grow up to 6 flowering plants, 6 non-flowering plants over 14", and 6 clones/seedlings under 14" (18 total). The household maximum is 12 flowering plants.
Do I need a license to grow cannabis at home in Missouri?
Yes. Missouri requires a personal cultivation license ($100) from the Department of Health and Senior Services (DHSS) before you can legally grow at home. You can apply online.
When did home cannabis cultivation become legal in Missouri?
Missouri voters approved Amendment 3 in November 2022, and it took effect on December 8, 2022. Home cultivation requires obtaining a cultivation license through DHSS.
What does "enclosed and locked" mean for Missouri home grows?
Your grow space must be in an area with a lock that prevents unauthorized access. This can be as simple as a closet with a lock on the door or a room with a locking doorknob. It doesn't need to be Fort Knox.
Can two adults in the same household both have cultivation licenses in Missouri?
Yes, but the household is still limited to 12 flowering plants total. Each licensed adult can have their own 18-plant count (6 flowering, 6 non-flowering, 6 clones), but flowering plants are capped at 12 per residence.
Ready to Start Growing in Missouri?
Check out our complete growing guide and equipment recommendations.