Home Grow Limit
Definition: A home grow limit is the maximum number of cannabis plants a state allows an adult or registered patient to cultivate at a private residence. Limits are set by each state, not the federal government, and are often counted per person and per household, sometimes with separate caps for mature (flowering) and immature plants.
How Home Grow Limit works
Every state that permits home cultivation writes its own rules, and legislatures and regulators revise them often. Rather than list numbers here that can go stale, start with your state in our state-by-state hub, then confirm the details in your state’s official statute or with its cannabis regulator.
How limits are usually structured
- Who can grow: adults 21 and older in adult-use states; in some medical-only states, only registered patients or their caregivers.
- Per person vs. per household: many states cap plants per adult and also set a household maximum, however many adults live there.
- Mature vs. immature: some states count flowering plants separately from seedlings and vegetative plants.
- Where and how: rules commonly require an enclosed, locked space out of public view.
- What you keep: the harvest stored at home may face its own possession limit.
Not every legal state allows it
Some states permit adult-use purchases but restrict or prohibit recreational home growing. Landlords, HOAs, and local ordinances can add further limits. In certain states, a medical marijuana card changes who may grow or how many plants are allowed.
Planning around your limit
Plant counts shape how you grow. A low cap favors a few large, well-trained plants over a many-plant sea of green. Seedlings and clones may count as plants, so germinate only what you can legally keep, and consider feminized seeds to avoid growing males you would have to remove.
Growing marijuana remains prohibited under federal law even where a state allows it. Our US seed legality guide explains the federal picture. Nothing here is legal advice; confirm current rules before you plant.