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San Bernardino County, CA Cannabis Regulations: Personal Cultivation Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified May 2026

Key Facts

Plant limit
Six per residence
Outdoor cultivation
Prohibited unincorporated
Age requirement
21 and older
Landlord permission
Required for renters

Summary

Adults 21 and older may grow up to six cannabis plants per private residence in San Bernardino County, but unincorporated areas require indoor cultivation inside a fully enclosed secure structure.

These county ordinances apply to unincorporated areas of San Bernardino County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

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.

(4) Paragraph (3) shall become inoperative upon a determination by the California Attorney General that adult use of cannabis is lawful in the State of California under federal law, and an act taken by a city, county, or city and county under paragraph (3) is unenforceable upon the date of that determination by the Attorney General.

(5) For purposes of this section, “private residence” means a house, an apartment unit, a mobile home, or other similar dwelling.

Source: California Health and Safety Code 11362.2View official code

Full Breakdown

Proposition 64 and Health and Safety Code 11362.2 allow personal cultivation of up to six plants per residence. San Bernardino County Code Chapter 84.34 restricts cultivation in unincorporated areas to a fully enclosed and locked accessory structure or interior room. Outdoor cultivation visible from public areas, neighboring parcels, or aerial view is prohibited. Renters need written landlord permission. Plants must not be visible from the public right of way and must use secure ventilation that prevents odor migration to adjacent parcels in desert and mountain communities.

Violations & Fines

Outdoor or unenclosed cultivation, more than six plants, or commercial sales without a state license trigger nuisance abatement and fines up to 1000 dollars per plant per day.

Frequently Asked Questions

Can I grow on my back patio?
Not in unincorporated SBC. Cultivation must occur in a fully enclosed, lockable structure not visible from outside. Greenhouses with locking doors and opaque walls generally qualify if odor is contained.
What about Joshua Tree or Yucca Valley?
Yucca Valley and Twentynine Palms set their own rules. In unincorporated Joshua Tree, county Chapter 84.34 applies. Verify local zoning before planting any cannabis.

Sources & Official References

Other rules in San Bernardino County

All San Bernardino County rules

California rules heatmap·Compare San Bernardino County to another location·View the California cannabis regulations overview

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