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Hawaii Statewide Rule

Hawaii Medical Cannabis Home Cultivation Rules

Heavy RestrictionsApplies statewide across Hawaii (2026)

Key Facts

Patient plant limit
10 plants total
Statute
HRS 329-122
Caregiver cultivation
Ended December 31, 2024
Site rules
Enclosed, locked, screened
Last verified: September 5, 2026Source: Hawaii State Legislature

Summary

Hawaii allows registered medical cannabis patients to grow up to ten plants at one secured location under HRS 329-122. As of December 31, 2024, primary caregivers may no longer cultivate. Recreational cultivation remains illegal statewide.

(a) A qualifying patient shall obtain medical cannabis or manufactured cannabis products only: (1) From a dispensary licensed pursuant to chapter 329D; provided that the cannabis shall be purchased and paid for at the time of purchase; (2) By cultivating cannabis in an amount that does not exceed an adequate supply for the qualifying patient pursuant to section 329-122; provided that each location used to cultivate cannabis shall be used to cultivate cannabis for not more than five qualifying patients; or (3) From the qualifying patient's primary caregiver who cultivates cannabis in an amount that does not exceed an adequate supply for the qualifying patient pursuant to section 329-122; provided that each location used to cultivate cannabis shall be used to cultivate cannabis for not more than five qualifying patients.

Source: Hawaii State LegislatureView official code

Full Breakdown

Under HRS 329-122, a registered qualifying patient may cultivate an 'adequate supply' of cannabis, no more than ten plants (mature or immature), at one designated grow site that must be enclosed, locked, and not visible to the public. No more than five patients may share a single grow site. Since December 31, 2024, primary caregivers are no longer authorized to cultivate cannabis for patients. Recreational home cultivation is prohibited; Hawaii has not legalized adult-use cannabis, and only state-licensed dispensaries may produce cannabis for the medical program. Counties cannot expand cultivation rights. Exceeding the limit or growing without registration is a criminal offense.

Violations & Penalties

Exceeding ten plants or unregistered cultivation is a misdemeanor or felony under HRS 712, with penalties including jail and fines based on plant count.

Frequently Asked Questions

Can adults grow cannabis at home in Hawaii?
Only registered medical cannabis patients may cultivate, up to ten plants at one secured grow site. Recreational cultivation is illegal statewide and counties cannot authorize it.
How many cannabis plants can a Hawaii medical patient grow?
Up to ten plants, mature or immature, at one registered grow site that is enclosed, locked, and screened from public view. Since December 31, 2024, caregivers may no longer grow for patients.

Sources

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