As of 2025, at least 16 states plus Washington, D.C. allow adults to grow marijuana at home for recreational use, and a handful of additional states permit home cultivation for medical cardholders only. The rules vary widely, from as few as two plants per person in Maryland to as many as 12 in Michigan. Here’s a full breakdown of where home growing is legal, how many plants you’re allowed, and what the rules actually look like in practice.
States That Allow Recreational Home Growing
The following states let any adult 21 or older grow cannabis at home for personal use. Plant limits are per person unless noted otherwise.
- Alaska: 6 plants, no more than 3 mature (flowering) at a time
- Arizona: 6 plants for non-commercial use
- California: 6 plants per residence, regardless of how many adults live there
- Colorado: 6 plants, no more than 3 mature at a time
- Connecticut: 6 plants, no more than 3 mature at a time
- Maine: 3 mature plants plus up to 12 immature plants
- Maryland: 2 plants per residence total, no matter how many adults live there
- Massachusetts: 6 plants per person
- Michigan: 12 plants per residence
- Minnesota: 8 plants, no more than 4 mature at a time
- Missouri: 6 flowering, 6 non-flowering, and 6 clones (requires a cultivation license)
- Montana: 2 mature plants plus 2 seedlings
- Nevada: 6 plants per person or 12 per household, but only if you live 25 miles or more from a licensed dispensary
- New York: 6 plants per person (3 mature, 3 immature), capped at 12 plants per household
- Ohio: 6 plants per adult, no more than 12 per household
- Washington, D.C.: 6 plants, only 3 of which can be mature
Notice the pattern: most states land on six plants per person as the standard. But the details matter. California caps the entire household at six plants no matter how many adults live there, while New York and Ohio allow up to 12 if multiple adults share a residence. Nevada’s rule is unique because it ties your right to grow to your distance from a dispensary. If you live within 25 miles of one, home cultivation isn’t an option for recreational purposes.
States That Allow Medical-Only Home Growing
A smaller group of states permits home cultivation exclusively for patients with a medical cannabis card. Among states that have only legalized cannabis for medical use, Hawaii, Oklahoma, and South Dakota allow patients to grow at home. Washington State also requires a medical cannabis authorization for home cultivation, even though it has a legal recreational market. In these states, you typically cannot grow plants at home unless you hold a valid patient card or are a registered caregiver.
The Difference Between Mature and Immature Plants
Many states split their plant counts into “mature” and “immature” categories, and this distinction matters more than it might seem. A mature plant is one that’s actively flowering and producing buds. An immature plant is still in its vegetative growth stage, meaning it hasn’t started producing consumable cannabis yet. Seedlings and clones also fall into the immature category.
States make this distinction because a flowering plant represents usable product, while a seedling is months away from harvest. Colorado, for example, lets you have six total plants but only three can be flowering at any given time. New York splits it evenly: three mature and three immature per person. This setup lets growers stagger their plants so they can harvest in cycles rather than all at once, which is the practical reason behind the split.
Household Caps vs. Individual Limits
One of the trickiest parts of home grow law is understanding whether your limit is personal or shared. In New York, each adult can grow up to 6 plants, but the household is capped at 12 total. So two adults in the same home each get their full allotment, but three adults don’t get 18. Ohio follows the same structure: 6 per person, 12 per household maximum.
Maryland takes the strictest approach. The entire residence is limited to 2 plants total, regardless of how many qualifying adults live there. California similarly caps each residence at 6 plants. If you’re in a shared living situation, these household caps mean you’ll need to coordinate with roommates or partners rather than assuming everyone gets their own allotment.
Security and Visibility Rules
Growing legally doesn’t mean growing openly. Most states require that your plants are kept in a secure location that isn’t visible from public view. New York’s regulations spell this out clearly: plants cannot be plainly visible from the street, and growers must take reasonable measures to prevent access by anyone under 21. That can mean growing indoors, using a locked greenhouse, or setting up fencing and gates around an outdoor grow area.
These rules exist for two reasons. The first is keeping cannabis away from minors. The second is preventing theft, which is a real concern for outdoor growers since even a few mature plants can represent significant value. Locks, enclosed spaces, and barriers that block line of sight from neighbors and passersby are the standard across most states with home grow laws. Even in states where the law is less specific, keeping your grow discreet and secure is a practical necessity.
What Happens If You Exceed the Limit
Going over your plant count or possessing more harvested cannabis than the law allows can range from a minor civil fine to a criminal charge, depending on the state and how far over the limit you are. Maryland provides a useful example of how enforcement is tiered. Possessing slightly more than the personal use amount results in a civil fine of up to $250. Larger amounts escalate to a criminal misdemeanor. And if there’s evidence you intended to sell, penalties jump to up to three years of imprisonment and a $5,000 fine.
Most states follow a similar escalation model. A few extra plants or a bit of extra harvested flower might result in a ticket, while a large-scale operation disguised as a home grow will be treated as unlicensed commercial cultivation, which carries much steeper consequences.
Renters and Landlord Restrictions
If you rent your home, your legal right to grow may be more limited than you think. In most states, landlords can include lease provisions that prohibit cannabis cultivation on their property. This is true even in states where home growing is fully legal for adults. Landlords often cite property damage concerns (grow lights, humidity, and water use can affect a rental unit) or federal housing regulations as justification.
Arizona has pushed back on this to some degree, with legislation stating that a landlord may not terminate a tenant’s rental agreement simply because the tenant uses marijuana. But “use” and “cultivation” are often treated differently under the law, and many lease agreements specifically address growing plants as a separate activity from possession or consumption. If you rent, check your lease carefully before setting up a grow space.
States Where Home Growing Is Still Illegal
Several states with legal recreational cannabis still do not permit home cultivation. Illinois, Washington State (for recreational users), and New Jersey are notable examples. In these states, you can buy cannabis from a licensed dispensary but cannot legally grow your own plants. The reasons vary. Some states want to protect their licensed retail market, others have concerns about enforcement, and in some cases home grow provisions were simply left out of the legalization ballot measure or legislation.
If your state isn’t on either of the lists above, home cultivation is not currently legal there, whether for recreational or medical purposes. Cannabis remains fully illegal under federal law, and states that haven’t passed their own legalization measures still enforce prohibition at the state level.