Cannabis home grow limits by state are set by each state's laws, so there is no single national plant count. Most states that allow home grow cap the number of plants per adult or per household and require secure, non-public cultivation. Some states allow medical home grow but not adult-use home grow.
Why cannabis home grow limits differ by state
Every state builds its own cannabis program. A state may allow recreational sales but still ban recreational home grow, as Washington does. Another state may permit medical cultivation under a patient registration system but not adult-use cultivation. State statutes also split authority between state agencies and cities or counties, which is why a lawful plant count at the state level can still be restricted by local zoning or nuisance rules.
Cannabis Home Grow Laws in Texas
What state home grow rules usually cover
- Plant counts: limits can be per adult, per patient, or per household.
- Household caps: several states allow a higher total for a household but still set a maximum.
- Maturity limits: some states count mature or flowering plants separately from immature plants.
- Security: locked, enclosed, or screened growing areas are common requirements.
- Visibility: plants often must not be visible from public view.
- Possession: harvested cannabis may have a separate weight limit.
- Local rules: cities, counties, landlords, and homeowners associations may add restrictions.
Examples of cannabis home grow limits by state
These examples show common home grow frameworks in selected legal states. They are a starting point, not a complete list, and rules can change through legislation, agency action, or local ordinances.
cannabis home grow license requirements
- California: adults 21 and older may grow up to six plants at a private residence, subject to local limits and security rules, and plants must not be visible from public view.
- Massachusetts: adults 21 and older may grow up to six plants per person and up to 12 per household in a locked area that is not visible from public view.
- Michigan: adults 21 and older may grow up to 12 plants at a private residence in a secured and enclosed area.
- New York: adults 21 and older may grow three mature and three immature plants per person, with household caps of six mature and six immature plants.
- Oregon: adults 21 and older may grow up to four plants per residence in a secure area.
- Maryland: adults 21 and older may grow up to two plants per household, out of public view and in a secure area.
- Washington: recreational home grow is not allowed; limited medical cultivation may be authorized under state rules.
Adult-use versus medical home grow
Medical home grow rules can be broader or separate from adult-use rules. A patient may be allowed more plants, different plant maturity limits, or caregiver cultivation. A recreational consumer in the same state may have a lower cap or no home grow right at all. Always check the rule that applies to you: adult-use consumer, registered patient, or caregiver.
cannabis home grow license requirements
Local rules can be stricter than state limits
Many states let cities and counties restrict home cultivation through zoning, odor, building, or nuisance rules. Landlords and homeowners associations may also prohibit growing on rental property or in shared buildings. A plant count that is allowed under state law can still create a local code violation if the grow area fails setback, ventilation, or screening requirements.
What to check before growing at home
- Confirm that your state allows home grow for your status, adult-use or medical.
- Check the plant count, household cap, and any mature or flowering plant limit.
- Review local ordinances, zoning, and rental or homeowners association rules.
- Plan a secure, enclosed area that is not visible from public view.
- Track possession limits for harvested cannabis, not just plants.
- Verify current rules with your state cannabis authority before planting.
Bottom line
Cannabis home grow limits by state change, and the details matter as much as the plant count. Start with your state cannabis agency, then check city, county, landlord, and building rules. If you are a medical patient or caregiver, review the medical program rules separately from the adult-use rules.