How many cannabis plants can you grow at home in San Diego?

Up to six plants per residence for adults 21 and over, under California law. The limit is per residence, not per person — a household of four adults still grows six plants, not twenty-four.

Can renters grow cannabis in San Diego?

The state allowance applies, but a landlord may prohibit cultivation on their property, and many leases do. Check the lease before planting — the lawful allowance does not override a private property agreement.

Can you grow outdoors in San Diego?

Local rules govern where and how cultivation happens, and jurisdictions differ on outdoor growing. Check current City of San Diego requirements before planting outside rather than assuming the state allowance settles it.

Can you sell what you grow at home?

No. Personal cultivation is for personal use. Selling cannabis requires a state licence, and unlicensed sale is a crime — the six-plant allowance is not a micro-business permit.

Does home-grown cannabis change the possession limits?

The harvest from your lawful plants may be kept at the residence, but the public possession and transport rules still apply outside it — sealed container, no public consumption, no vehicles.

San Diego cannabis law · № 06

Can you grow cannabis at home in San Diego?

Reviewed 2026-07-30 · Sources listed below

Yes. California allows adults 21 and over to cultivate up to six cannabis plants per residence for personal use, subject to local rules on where and how. The limit is per residence, not per person, landlords may prohibit it, and nothing grown at home may be sold.

Home cultivation is the quietest part of California cannabis law — legal since 2016, rarely advertised, and hedged by two catches that surprise most first-time growers: the per-residence limit and the local-rules overlay.

The six-plant allowance

The state allowance is six plants per private residence, for personal use, by adults 21 and over. It does not scale with household size — six is the ceiling for the address, whether one adult lives there or five. The plants and what they produce stay at the residence; the harvest is yours to keep there, not to sell or to carry around town unsealed.

The local-rules overlay

California lets cities and counties regulate where and how cultivation happens — indoors, outdoors, security, and nuisance rules all vary by jurisdiction. Before planting, especially outdoors, check the current City of San Diego requirements rather than assuming the state allowance is the whole story. Different cities inside the county answer this differently.

Renters and landlords

The allowance operates alongside private property rights, not over them. A landlord may prohibit cultivation on their property, and standard leases frequently do — sometimes in a general no-smoking or no-alterations clause rather than by name. If you rent, the lease is the document that decides this, and a conversation beats a surprise inspection.

Growing is not selling

Personal cultivation is exactly that. Selling cannabis in California requires a state licence, and unlicensed sale is a crime regardless of how the product was grown. The six-plant allowance is not a licence, a side business, or a supply arrangement for friends who pay you back.

Once it leaves the house

Everything on the possession limits page and the consumption page applies to home-grown cannabis the moment it leaves the residence: sealed transport, no public consumption, no vehicles, and the border and state-line rules do not care where it was grown.

Common questions

How many cannabis plants can you grow at home in San Diego?: Up to six plants per residence for adults 21 and over, under California law. The limit is per residence, not per person — a household of four adults still grows six plants, not twenty-four.
Can renters grow cannabis in San Diego?: The state allowance applies, but a landlord may prohibit cultivation on their property, and many leases do. Check the lease before planting — the lawful allowance does not override a private property agreement.
Can you grow outdoors in San Diego?: Local rules govern where and how cultivation happens, and jurisdictions differ on outdoor growing. Check current City of San Diego requirements before planting outside rather than assuming the state allowance settles it.
Can you sell what you grow at home?: No. Personal cultivation is for personal use. Selling cannabis requires a state licence, and unlicensed sale is a crime — the six-plant allowance is not a micro-business permit.
Does home-grown cannabis change the possession limits?: The harvest from your lawful plants may be kept at the residence, but the public possession and transport rules still apply outside it — sealed container, no public consumption, no vehicles.

Sources for this article

California Department of Cannabis Control — personal cultivation rules · checked 2026-07-31
San Diego Police Department — Proposition 64 fact sheet · checked 2026-07-30

Reviewed 2026-07-30. Not legal advice — see the about page for our sourcing standard.