Adults 21 and older in unincorporated LA County may cultivate up to six living cannabis plants per private residence under California Proposition 64, with plants kept indoors or in a locked, screened outdoor enclosure not visible from a public place under Health and Safety Code Section 11362.1.
California Proposition 64, codified at Health and Safety Code Section 11362.1, lets any adult 21 or older grow up to six plants total per residence regardless of how many adults live there. Outdoor cultivation is allowed only when plants are not visible from a public place and are secured behind a locked enclosure. State law preempts cities and counties from banning indoor personal cultivation outright, though they may impose reasonable health, safety, and electrical rules. LA County enforces nuisance, odor, mold, and electrical safety standards through the Sheriff, Building, and Public Health departments rather than by limiting plant count. Renters need landlord permission. Plants cannot be cultivated where minors can access them and cannot be sold without a state license.
Exceeding six plants is a state infraction or misdemeanor under HSC Section 11358. Plants visible from public places, unlocked outdoor grows, or sales without a state license also trigger county nuisance enforcement under Title 22 abatement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Altadena, CA
LA County allows backyard chickens in R-1 zones in unincorporated areas (including Altadena) subject to coop setbacks under LA County Code Title 10 and Title...
Altadena, CA
LA County Code Section 10.32.010 prohibits dogs running at large in any public place or private property other than the owner's, unless restrained by a chain...
Altadena, CA
Trimming protected oak trees (≥8 in DBH) requires an Oak Tree Permit if the work enters the protected zone or removes >25% of crown. Street trees in the publ...
Altadena, CA
In Altadena's Very High Fire Hazard Severity Zones, grass and weeds must be kept under 3 inches under LA County Fire Code Title 32 defensible-space rules.
Altadena, CA
LA County Fire's Brush Clearance program also functions as the weed-abatement ordinance — vacant and improved lots must keep weeds and grasses cut to under 3...
Altadena, CA
Outdoor watering in Altadena (served by Lincoln Avenue Water Co., Las Flores Water Co., Rubio Cañon, and Kinneloa Irrigation District) is limited to 2 days p...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle personal cultivation limits.
See how Altadena's personal cultivation limits rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.