Under California state law, there is no minimum distance between a personal home cannabis grow and a school, but commercial cannabis operations must sit at least 600 feet from any K-12 school, daycare center, or youth center. That is the short answer to how far from a school you can grow cannabis in California. The longer answer depends on whether the grow is personal or commercial, what your city or county says, and whether federal law is on your radar.
Personal Home Grows: No State Distance Rule
Adults 21 and older can grow up to six living cannabis plants per residence under Proposition 64, and state law does not require those plants to be any specific distance from a school.1Judicial Branch of California. Proposition 64: The Adult Use of Marijuana Act The six-plant cap is per residence, not per adult, so two adults in the same home share the same six plants.
The rules that do apply to a home grow are about where and how you keep the plants. Your cannabis plants, and any harvested cannabis over 28.5 grams, must stay inside your private residence or on its grounds, be kept in a locked space, and not be visible from a public place.2California Legislative Information. California Code HSC 11362.2 A locked greenhouse or a fenced backyard with a padlocked gate typically meets the “locked space” requirement. An open patio does not.
Medical patients with a valid physician’s recommendation can exceed the six-plant limit and grow an amount reasonably related to their medical needs.3California Department of Justice – Office of the Attorney General. Medicinal Cannabis Guidelines The same locked-space, not-visible, on-the-residence rules still apply, and the state still imposes no school-distance buffer.
Your City or County Can Add Restrictions
Local governments can layer their own rules on top of state law. Some California cities and counties ban outdoor home grows outright, require cultivation to happen indoors, or impose a distance from schools that the state doesn’t. Before you plant, read your local cannabis ordinance. State permission does not override a local prohibition.
The 600-Foot Rule for Commercial Cannabis
Any premises licensed for commercial cannabis activity in California must be at least 600 feet from a school offering instruction in kindergarten through grade 12, a daycare center, or a youth center that exists when the license is issued.4California Legislative Information. California Code BPC 26054 The buffer covers all commercial license types, including cultivation, retail, manufacturing, and distribution. A separate statute, Health and Safety Code Section 11362.768, imposes the same 600-foot buffer on medicinal cannabis cooperatives and dispensaries with a storefront or mobile retail outlet.5California Legislative Information. California Code HSC 11362.768
The 600 feet is a floor. Local governments can require more, and many do. Some California cities set the buffer at 1,000 feet or higher. A few have reduced it below 600 feet in specific zoning conditions, though that is less common. Check both state law and the local ordinance before you commit to a site.
How the Distance Is Measured
Measurement runs as a straight horizontal line from the property line of the school, daycare, or youth center to the closest property line of the cannabis premises.5California Legislative Information. California Code HSC 11362.768 Walls, fences, freeways, or elevation changes between the two lots are irrelevant. Because the measurement is property line to property line rather than building to building, the actual buffer between structures is often larger than the number suggests.
What Counts as a Protected Location
The buffer under BPC 26054 protects three categories: K-12 schools, daycare centers, and youth centers.4California Legislative Information. California Code BPC 26054 Both public and private schools count, though private schools that provide instruction primarily in private homes are excluded.6California Legislative Information. California Code HSC 11362.768 Colleges and universities are not on the list.
Timing matters. The protected location must exist when the license is issued. A school that opens next door after you are already licensed does not automatically strip your license, but a school that opens before you apply or renew can block you.
Smoking and Possession Near Schools
Growing is one thing. Using and carrying cannabis near a school is governed by different rules that catch some people by surprise. You cannot smoke cannabis within 1,000 feet of a school, daycare, or youth center while children are present, unless you are inside a private residence and the smoke cannot be detected on school grounds.7California Department of Industrial Relations. California Code HSC 11362.3 Possessing, smoking, or ingesting cannabis on the actual grounds of a school, daycare, or youth center while children are there is prohibited.
Medical patients face a similar but slightly stricter rule. Smoking medicinal cannabis within 1,000 feet of a school, recreation center, or youth center is barred unless the use is inside a residence, regardless of whether children are present.8California Legislative Information. California Code HSC 11362.79
Federal Law Sets a Wider Zone
State legalization does not clear federal risk. Cannabis is still a Schedule I controlled substance federally, and 21 U.S.C. ยง 860 creates enhanced penalties for manufacturing or distributing controlled substances within 1,000 feet of a public or private elementary school, secondary school, vocational school, or college.9Office of the Law Revision Counsel. 21 USC 860 – Distribution or Manufacturing in or Near Schools First-offense penalties can be doubled, with a one-year mandatory minimum.
There is a narrow exception: the mandatory minimum does not apply to offenses involving five grams or less of marijuana.9Office of the Law Revision Counsel. 21 USC 860 – Distribution or Manufacturing in or Near Schools Six living plants will almost always produce far more than that. Federal enforcement against state-legal home growers has been rare in practice, but the statute is still on the books, and the federal 1,000-foot zone is wider than California’s 600-foot commercial buffer.
Penalties for Growing Outside the Rules
For adults 18 and older, growing more than six plants is a misdemeanor punishable by up to six months in county jail, a fine of up to $500, or both. For people 18 to 20 who are not qualified medical patients, growing six or fewer plants is an infraction with a maximum $100 fine.10California Legislative Information. California Code HSC 11358
Cultivation becomes a felony in specific situations: a prior conviction for a serious or violent felony, a requirement to register as a sex offender, two or more prior cultivation convictions, or environmental damage such as illegal water diversion, hazardous waste dumping, or harm to waterways and protected species.10California Legislative Information. California Code HSC 11358
On the commercial side, operating without required state and local licenses exposes you to civil penalties, license denial, suspension, or revocation by the Department of Cannabis Control.11Department of Cannabis Control. License Denials, Citations, and Disciplinary Actions Local jurisdictions can treat unlicensed commercial activity as a public nuisance and impose administrative fines of up to $10,000 per day.12California Legislative Information. California Government Code 53069.4 Illegal crops can be seized and destroyed.