Growing cannabis indoors is legal only when state law allows it. More than 20 states and the District of Columbia permit some form of home cultivation, while federal law still classifies cannabis as a Schedule I controlled substance. Your legal plant count, plant size, and grow space come from state statute plus local ordinance, not from federal approval.
Cannabis Home Grow Laws in Texas: A Comprehensive Guide
Is growing cannabis at home legal under federal law?
No. Cannabis remains Schedule I under the federal Controlled Substances Act, which carries no exception for a small personal indoor grow. Federal charges are possible in theory for any home cultivation, regardless of state law.
home grow cannabis laws state by state
In practice, federal prosecution of small home grows is rare, and a congressional appropriations rider bars the Justice Department from using funds to interfere with state medical cannabis programs. That rider is not a defense for recreational grows and depends on the current federal budget.
Cannabis Home Grow Limits by State: 2025 Guide
Which states allow indoor cannabis growing?
State rules fall into three groups: recreational states with home grow, medical states with patient or caregiver grows, and legal states that still ban cultivation at home.
- Recreational home grow: California allows up to 6 plants per residence. Massachusetts allows 6 per adult and 12 per household. Michigan allows up to 12 per household.
- Also permitted: New York allows 6 plants per adult, with 3 mature, and 12 per household. Virginia and Oregon cap grows at 4 plants per household. Colorado allows 6 plants per adult and 12 per household. Maine allows 6 mature and 12 immature plants per adult.
- Cultivation banned: Washington and New Jersey do not permit recreational home grow. Florida does not allow medical patients to grow at home.
Does a medical card change what you can grow?
Often yes. Many states give registered patients or caregivers a higher plant count than recreational adults receive. In medical-only states, cultivation is usually limited to patients and licensed caregivers, and any recreational grow is a crime.
What limits usually apply to an indoor grow?
- Plant counts per person or per household, frequently with a lower cap on mature flowering plants.
- Canopy or grow-area square footage in some states.
- A locked, enclosed space that is not visible from public view.
- Age and residency rules, typically 21 and older for recreational grows.
- No sales, and often no sharing beyond small gifts.
Can local laws ban indoor growing in a legal state?
Yes. Cities and counties can restrict cultivation through zoning, odor and nuisance rules, and permit requirements. Landlords, HOAs, and apartment leases can ban growing even where state law permits it. Federal housing rules make cultivation a serious risk in subsidized units.
What mistakes turn a legal grow into a violation?
Plant counts drive most charges, because each plant over the limit can be treated as a separate offense. Selling, or sharing beyond the state's gift limit, converts a personal grow into unlicensed distribution. Unpermitted wiring, missing fire safety, and uncontrolled odor can trigger code enforcement or a nuisance complaint even when the plants themselves are legal.
Indoor grow legality checklist
- Read your state's cultivation statute for the exact plant count and mature plant cap.
- Check city and county zoning, permit, and odor ordinances.
- Confirm your lease, HOA rules, or housing program allows cultivation.
- Keep plants locked and out of public view at every growth stage.
- Do not sell, and stay inside your state's sharing limit.
- Meet electrical and fire code requirements for lights and ventilation.
Penalties for an illegal indoor grow vary widely, from a fine in one state to felony charges in another. Because plant counts, local rules, and enforcement priorities shift each year, verify current law for your address before you buy equipment or seeds.