Know before you go

Hawaii

Registered qualifying patients and their designated caregivers share an adequate-supply allowance. A grow site must be identified on the valid 329 card.

Medical program rules reviewed

Sources reviewed September 30, 2026. Coverage: selected medical supply and cultivation rules, not all legal questions.

Joint usable supplyUp to 4 ounces, including the cannabis equivalent in manufactured productsOfficial source

Joint plant allowanceUp to 10 plants, counting mature and immature plants togetherOfficial source

Grow-site registrationThe permitted location must appear on the valid 329 cardOfficial source

Out-of-state patient growingNot included in the out-of-state medical-use permissionOfficial source

Details worth checking

Plant tags and the registered patient–caregiver relationship matter. The joint allowance is not a separate allowance for each caregiver.
This review covers selected medical growing rules. Visitor registration, purchases, and broader adult-use proposals require a separate review.

Official sources

Hawaii Department of Health — growing medical cannabis

Regulators & contacts

Agency information checked September 30, 2026.

Hawaii Department of Health — Office of Medical Cannabis Control and Regulation (OMCCR)

Oversees the medical cannabis patient registry and dispensary program. Its official portal provides separate routes for patients, dispensaries, and hemp program information.

Hawaii Department of Health — Office of Medical Cannabis Control and Regulation (OMCCR) — official information and contact routes

Cardcierge

Medical cannabis card information, registration, published fees, and evaluation providers for Hawaii.

View medical card information

General information, not legal advice. Laws, effective dates, and local policies change. Confirm the applicable rules with official sources before acting.