Is It Legal to Grow Cannabis at Home in Rhode Island? (2026 Rules)

Jurisdiction: Rhode Island  |  Last verified: September 4, 2026  |  Current adult-use regulation effective: May 1, 2025

Quick answer: Yes. A Rhode Island adult age 21 or older may grow up to three mature and three immature cannabis plants indoors at a residence. That is a per-dwelling limit, not a per-person limit.

Rhode Island home-grow rules in plain language

• Minimum age: 21 for adult-use personal cultivation.
• Plant limit: no more than three mature and three immature plants per dwelling unit.
• Location: the plants must be grown indoors within a residence.
• Security: the grow area must use locks or other security devices that restrict access, including access by anyone under 21.
• Public view: reasonable efforts must keep the cannabis from being visible from the street or another public area.
• Odor: reasonable efforts must prevent plant odors from significantly changing the outdoor odor around the residence.
• Registration: an adult-use personal grow within these limits does not have to be registered with the Rhode Island Cannabis Control Commission.

Three mature plants and three immature plants are the maximum for the entire dwelling even when several eligible adults live there. The current regulation describes that limit as three adult-use “plant sets,” with one mature and one immature plant in each set.

Adult-use and medical home grows are different

Rhode Island’s medical home-grow program is separate. Qualified patients and registered caregivers who elect to grow medical cannabis must follow the current home-grow certificate rules. Medical limits and registration requirements should not be mixed into the simpler adult-use limit.

If you participate in the medical program, use the Rhode Island Cannabis Control Commission’s patient and caregiver resources before starting. Renters seeking a medical home-grow certificate may also need documented property-owner permission.

Before you start

1. Count the whole dwelling. Do not multiply the plant limit by the number of adults living there.
2. Prepare a secure indoor space. Use an enclosed area with working locks or other access controls.
3. Control sight and odor. Keep the plants out of public view and reduce odor escaping from the residence.
4. Check housing rules. A lease, condominium rule or property policy may create an additional restriction.
5. Use the correct program. Follow adult-use rules for an adult personal grow and the separate certificate rules for a medical home grow.

Official Rhode Island sources

• R.I. Gen. Laws §21-28.11-22: Personal use of cannabis
• Rhode Island regulation 560-RICR-10-15-1: Personal cultivation
• Rhode Island Department of Health: Cannabis information for adults

Ready to learn the cultivation side?

After confirming that the current Rhode Island rules and your housing agreement allow the grow, use the HWGrow complete beginner guide for a practical seed-to-harvest workflow.

Compare Rhode Island with the HWGrow U.S. cannabis home-grow law guide.

Rhode Island home-grow FAQ

How many cannabis plants can an adult grow in Rhode Island?

An adult age 21 or older may grow up to three mature and three immature plants indoors at a residence. The limit applies to the entire dwelling, not to each adult.

Does an adult need a medical card to grow cannabis at home in Rhode Island?

No. A compliant adult-use personal grow does not require a medical card or registration with the Cannabis Control Commission. Medical home grows follow a separate certificate program.

Does a Rhode Island home grow have to be locked?

Yes. The current regulation requires locks or other security devices that limit access to the grow area, including access by people under 21.