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Maine Statewide Rule

Maine Adult-Use and Medical Cannabis Home Cultivation Limits

Few RestrictionsApplies statewide across Maine (2026)

Key Facts

Adult-use plant limit
3 flowering, 12 immature
Statute
28-B M.R.S. § 1502
Medical statute
22 M.R.S. ch. 558-C
Sale of home-grown
Prohibited
Last verified: August 20, 2026Source: Maine Legislature

Summary

Maine state law universally allows adults 21 and over to grow up to three mature cannabis plants for personal use and qualifying medical patients to grow more, with municipalities barred from prohibiting state-permitted personal cultivation.

§1502. Home cultivation of cannabis for personal adult use The provisions of this section apply to the home cultivation of cannabis for personal adult use by a person 21 years of age or older, but do not apply to the cultivation of cannabis for medical use by a qualifying patient, a caregiver, a registered caregiver or a registered dispensary as authorized by the Maine Medical Use of Cannabis Act. [PL 2017, c. 409, Pt. A, §6 (NEW); PL 2017, c. 452, §37 (REV); PL 2021, c. 669, §5 (REV).] 1. Cultivation of up to 6 mature cannabis plants per person for personal adult use authorized. Subject to the applicable requirements and restrictions of subsections 2 , 3 and 4 , a person 21 years of age or older may cultivate up to 6 mature cannabis plants, up to 12 immature cannabis plants and an unlimited number of seedlings for personal adult use: A. On a parcel or tract of land on which the person is domiciled; [PL 2017, c. 409, Pt. A, §6 (NEW).] B. On a parcel or tract of land owned by the person on which the person is not domiciled; or [PL 2017, c. 409, Pt. A, §6 (NEW).] C. On a parcel or tract of land not owned by the person and on which the person is not domiciled so long as the owner of the parcel or tract of land by written agreement permits the cultivation and care of the cannabis plants on the parcel or tract of land by that person. [PL 2017, c. 409, Pt. A, §6 (NEW); PL 2021, c.

Source: Maine LegislatureView official code

Full Breakdown

Under 28-B M.R.S. section 1502, an adult 21 or older may cultivate up to three flowering plants, twelve immature plants, and unlimited seedlings for personal adult use, and may possess the harvest from those plants at the cultivation site. Medical patients and caregivers operating under Title 22 chapter 558-C may grow additional plants per registered patient. Plants must be screened from public view and not accessible to minors. Municipalities can regulate odor, structures, electrical safety, and rental policies, but they cannot ban personal home cultivation by lawful adult users or registered patients. Sale of home-grown cannabis without a commercial license is prohibited.

Violations & Penalties

Exceeding plant counts, public visibility, or unlicensed sale can result in civil violations or criminal charges, with penalties scaling by quantity under Title 17-A drug schedules.

Frequently Asked Questions

How many cannabis plants can I grow at home in Maine?
Adults 21 and older may grow up to three mature, twelve immature, and unlimited seedlings for personal use. Registered medical patients and caregivers may grow additional plants under separate rules.
Can my Maine town ban home cultivation?
No. Towns can regulate odor, structures, and rental terms, but cannot prohibit lawful personal cultivation. Sale of homegrown product, however, requires a state commercial license.

Sources

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