Home Cultivation: Ontario vs Rialto
How do home cultivation rules compare between Ontario, CA and Rialto, CA?
Ontario and Rialto have similar restriction levels.
Ontario, CA
San Bernardino County
Ontario residents 21 and older may grow up to 6 cannabis plants indoors per residence under Proposition 64, but outdoor cultivation is banned by OMC Chapter 9 ordinance.
View full Ontario rules →Rialto, CA
San Bernardino County
Unincorporated San Bernardino County allows personal cannabis cultivation only indoors. State Proposition 64 (Health & Safety Code Section 11362.1) permits up to six living plants per residence for adults 21+; medical patients may grow more under HSC 11362.77. County Code Section 84.34.040 requires cultivation in a fully enclosed, locked, secure area not perceptible from outside. Outdoor cultivation is prohibited.
View full Rialto rules →Key Facts Comparison
| Fact | Ontario | Rialto |
|---|---|---|
| Indoor plant limit | 6 per residence | - |
| Outdoor cultivation | Prohibited in Ontario | - |
| Age | 21 or older | - |
| Secured area | Locked, enclosed, not visible | - |
| Landlords | May ban under Civil Code 1947.5 | - |
| County Authority | - | Title 8 Section 84.34.040 |
| State Authority | - | Cal. HSC 11362.1 (Prop 64); HSC 11362.77 (medical) |
| Adult-Use Plant Limit | - | 6 plants per residence (statewide) |
| Medical Limit | - | 12 plants per cardholder; 24 max per residence |
| Indoor Only | - | Yes - outdoor cultivation prohibited |
| Enclosure | - | Fully enclosed structure, solid walls and roof |
| Security | - | Designated area separately locked and secured |
| Visibility | - | Not perceptible from exterior |
| Enforcement | - | Code Enforcement + Sheriff's MET; Land Use Services (909) 387-8311 |
Highlighted rows indicate differences between cities.
Ontario FAQ
Can I grow cannabis in my Ontario backyard?
No. Ontario Municipal Code prohibits all outdoor personal cannabis cultivation. You may only grow up to 6 plants indoors in a secured, locked area not visible to the public.
Can my landlord ban me from growing cannabis?
Yes. California Civil Code 1947.5 specifically allows landlords to prohibit cannabis cultivation and smoking in rental units through the lease.
Rialto FAQ
Can I grow cannabis outdoors at my home in unincorporated San Bernardino County?
No. San Bernardino County Code Section 84.34.040 prohibits outdoor cultivation entirely. State law (California Proposition 64, Health & Safety Code Section 11362.1) allows counties to bar outdoor home cultivation, and San Bernardino County has done so. Personal cultivation is permitted only inside a fully enclosed structure with solid walls and a roof, and only in a separately locked, secured area not perceptible from outside the residence.
How many cannabis plants can I legally grow at home?
Up to six living plants per residence under California Proposition 64 (Health & Safety Code Section 11362.1) for adults 21 and older, regardless of how many adults live there. A qualified medical patient with a state ID card may cultivate up to 12 plants under Health & Safety Code Section 11362.77, with an aggregate cap of 24 plants per residence when multiple cardholders or primary caregivers live in the same home. All cultivation must be indoors per County Section 84.34.040.
What does San Bernardino County require for an indoor home grow?
Section 84.34.040 of the County Code requires the cultivation to occur in a fully enclosed structure with solid walls and a ceiling, roof, or top. The cultivation area must be a single designated space, separately secured and locked from all other uses of the home, with plants reasonably secured against theft and access by minors. No cannabis or odor may be perceptible from outside the residence.
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