Minnesota Home Growing Rules: How Many Cannabis Plants Can You Grow?

Minnesota legalized adult-use cannabis in August 2023, and with it came the right to grow your own. Whether you want to cultivate a few plants in a spare bedroom or build a locked outdoor garden, the rules are straightforward once you know them. This guide covers everything you need to know about home growing in Minnesota, including plant limits, where you can grow, storage rules, prohibited conduct, and the penalties for getting it wrong.

The Legal Foundation: Minnesota Statute 342.09

Home cultivation rights for adults are established in Minnesota Statute 342.09, which governs personal adult use of cannabis. This is the section you need to know if you plan to grow at home.

"A person may cultivate cannabis plants for personal use at their residence in an amount that does not exceed eight cannabis plants, of which no more than four may be mature, flowering cannabis plants, per residence."

Minn. Stat. 342.09, Subd. 2

That single sentence establishes the core rule. Everything else in this guide flows from it.

Plant Limits: The Numbers

The statute sets a two-part limit:

• Total plants per residence: 8
• Mature, flowering plants per residence: 4

A few important clarifications on how these limits work:

The limit is per residence, not per person. If two adults live together, you still share the household cap of 8 total plants and 4 mature. You do not each get 8.

"Mature" means actively flowering. Seedlings, clones, and vegetative-stage plants count toward your total of 8 but not toward the 4-mature cap. You could, for example, have 4 mature flowering plants and 4 plants in veg at the same time -- that is the maximum allowed.

There is no strain or species restriction. The law does not specify which varieties you may grow, only the quantity.

Where You Can Grow: Indoor and Outdoor Rules

The statute requires that plants be kept in an area that is:

• Enclosed -- fully surrounded, not open on multiple sides
• Locked -- secured against casual access
• Not open to public view -- not visible from any public road, sidewalk, or neighboring property without optical aids

Indoor Cultivation

A locked grow tent, a dedicated grow room, or a closet with a lock all satisfy the enclosed-and-locked requirement. Indoor grows are the simplest way to comply because visibility is automatically addressed.

Outdoor Cultivation

Outdoor growing is permitted, but your growing space must still be enclosed and locked. Common compliant setups include:

• A fenced backyard with a gate that locks, where plants are not visible over the fence line
• A locked greenhouse
• A locked shed with transparent panels that allows light in

If your plants are visible from the street, a neighbor's yard, or any public area, you are not in compliance regardless of how many plants you have.

Lease and HOA Considerations

State law permits home cultivation, but it does not override private contracts. Landlords may prohibit growing in lease agreements. Homeowners associations may restrict it through CC&Rs. Always review your lease and any governing documents before starting a grow.

Storage Limits for Harvested Cannabis

Minnesota law does not set an explicit weight limit on how much harvested cannabis you may keep at your private residence from a personal home grow. However, public possession limits under Minn. Stat. 342.09 are:

• Up to 2 ounces of cannabis flower in public
• Up to 8 grams of cannabis concentrate in public
• Edible cannabis products containing up to 800 milligrams of THC total in public

Harvested flower stored at home from a lawful personal grow is generally treated as personal-use quantity. Storing very large amounts could invite questions about intent to distribute, which carries separate penalties.

What Is Prohibited

Even with home grow rights, several things remain illegal under Minnesota law:

• Exceeding plant limits. More than 8 total plants, or more than 4 mature flowering plants, is a civil and potentially criminal violation.
• Growing where plants are visible from public view. Visibility is its own violation independent of plant count.
• Extracting concentrate with volatile solvents. Minn. Stat. 342.09 explicitly prohibits using butane, propane, or other flammable gases to make concentrates at home. Cold-water hash, dry sifting, and rosin pressing are generally permissible.
• Selling home-grown cannabis. You may give cannabis away to other adults within the gifting limits, but any sale without a license is illegal.
• Growing if you are under 21. Home cultivation is restricted to adults 21 and older.
• Growing in a space accessible to minors without adequate security. Plants must be locked away from anyone under 21.

Penalties for Violating Home Grow Rules

Penalties escalate based on how far you exceed the limits.

Civil Penalty

Under Minn. Stat. 342.09, the Office of Cannabis Management may impose a civil penalty of up to $500 per plant for each plant grown over the 8-plant or 4-mature-plant limit. This is an administrative penalty, not a criminal charge.

Gross Misdemeanor

Growing cannabis in excess of personal-use limits -- particularly in quantities that suggest distribution -- can be charged as a gross misdemeanor, carrying up to one year in jail and a fine of up to $3,000.

Felony

Large-scale unlicensed cultivation can result in felony charges with penalties including multi-year prison sentences and fines up to $10,000 or more, depending on the quantity involved.

The distinction between a civil penalty and a criminal charge often comes down to quantity and evidence of intent to distribute. Keeping records of your plant count and maintaining a clearly personal-scale grow is the best way to stay firmly in civil-penalty territory if you are ever questioned.

Sharing What You Grow

Adults 21 and older may give cannabis they have grown to other adults at no charge, within these limits per transfer:

• Up to 2 ounces of cannabis flower
• Up to 8 grams of concentrate
• Edibles containing up to 800 mg of THC total

There must be no payment or exchange of value. Any sale of home-grown cannabis without a license is a criminal offense.

Quick-Reference Summary

Where to Buy Before Your First Harvest

While your home grow gets established, licensed dispensaries across Minnesota carry a full range of flower, seeds, and clones. Browse our Minnesota dispensary directory to find a licensed retailer near you. You can also review our Minnesota cannabis legal guide for a broader overview of adult-use rights and restrictions in the state.

Frequently Asked Questions

How many cannabis plants can I grow in Minnesota?

Adults 21 and older may grow up to 8 cannabis plants at their residence, with no more than 4 being mature, flowering plants at any one time. The limit applies per residence, not per person.

Can I grow cannabis outdoors in Minnesota?

Yes. Outdoor cultivation is permitted as long as your growing area is enclosed, locked, and not visible from any public place. A locked fenced yard or locked greenhouse satisfies the requirement.

How much cannabis can I store at home in Minnesota?

There is no explicit weight cap on home storage of cannabis grown for personal use. Public possession is limited to 2 ounces of flower, 8 grams of concentrate, and edibles totaling up to 800 mg THC. Storing quantities that suggest distribution can invite legal scrutiny even at home.

What happens if I grow more than 8 plants in Minnesota?

The Office of Cannabis Management may impose a civil penalty of up to $500 per plant over the limit. Growing substantially more can escalate to a gross misdemeanor (up to 1 year and a $3,000 fine) or a felony depending on quantity and circumstances.

Do I need a license to grow cannabis at home in Minnesota?

No. Adults 21 and older do not need any license to grow up to 8 plants (4 mature) for personal use. A license is required only for commercial cultivation.

Can my landlord prohibit me from growing cannabis at home?

Yes. State law permits home cultivation, but it does not override private lease agreements. Landlords may include a no-cultivation clause in a lease. Review your lease before starting a grow.

Can I share cannabis I grew at home with friends?

Adults 21+ may give up to 2 ounces of flower, 8 grams of concentrate, or edibles containing up to 800 mg THC to another adult at no charge. Selling home-grown cannabis without a license is illegal.

Are there local rules that could affect my home grow?

Minnesota cities and counties cannot ban home cultivation outright, but local zoning ordinances, HOA rules, and lease terms can restrict it. Check with your municipality and review any governing documents for your property before you start.