Fontana, CA Cannabis Regulations: Home Cultivation (2026)
Key Facts
- Plants allowed
- 6 per residence
- Outdoor grow
- Prohibited
- Age requirement
- 21 and older
- Enclosure
- Locked indoor space
Summary
Fontana allows adults 21 and older to grow up to 6 cannabis plants indoors per residence under Proposition 64. Outdoor cultivation is prohibited and indoor grows must meet city safety rules.
11362.2. (a) Personal cultivation of cannabis under paragraph (3) of subdivision (a) of Section 11362.1 is subject to the following restrictions:
(1) A person shall plant, cultivate, harvest, dry, or process plants in accordance with local ordinances, if any, adopted in accordance with subdivision (b).
(2) The living plants and any cannabis produced by the plants in excess of 28.5 grams are kept within the person’s private residence, or upon the grounds of that private residence (e.g., in an outdoor garden area), are in a locked space, and are not visible by normal unaided vision from a public place.
(3) Not more than six living plants may be planted, cultivated, harvested, dried, or processed within a single private residence, or upon the grounds of that private residence, at one time.
(b) (1) A city, county, or city and county may enact and enforce reasonable regulations to regulate the actions and conduct in paragraph (3) of subdivision (a) of Section 11362.1.
(2) Notwithstanding paragraph (1), a city, county, or city and county shall not completely prohibit persons engaging in the actions and conduct under paragraph (3) of subdivision (a) of Section 11362.1 inside a private residence, or inside an accessory structure to a private residence located upon the grounds of a private residence that is fully enclosed and secure.
(3) Notwithstanding paragraph (3) of subdivision (a) of Section 11362.1, a city, county, or city and county may completely prohibit persons from engaging in actions and conduct under paragraph (3) of subdivision (a) of Section 11362.1 outdoors upon the grounds of a private residence.
(5) For purposes of this section, “private residence” means a house, an apartment unit, a mobile home, or other similar dwelling.
Full Breakdown
Under California Proposition 64 and Health and Safety Code 11362.2, adults 21 and older may cultivate up to six cannabis plants per private residence for personal use. Fontana complies with this minimum and allows indoor cultivation in a locked, enclosed space within a private residence or fully enclosed accessory structure such as a garage or greenhouse. Outdoor cultivation visible from any public place is expressly prohibited by city ordinance, and the city uses its local zoning authority to require indoor grows to comply with electrical, mechanical, and building codes. Growers must not create odors, mold, or excessive humidity that damage neighboring property, and plants must be inaccessible to minors. Commercial cultivation is prohibited in Fontana outside of any zones that may be opened for licensed operators. Unauthorized commercial grows and any cultivation that poses safety hazards may trigger code enforcement, police response, and abatement.
Frequently Asked Questions
Can I grow in my backyard?
Does my landlord have to allow cultivation?
Sources & Official References
Other rules in Fontana
California rules heatmap·Compare Fontana to another location·View the California cannabis regulations overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Home Cultivation in Nearby Cities
How other cities in San Bernardino County handle home cultivation.