Maine Home Cultivation Law: Statewide Cannabis Regulations Rules (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

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.

Maine Adult-Use and Medical Cannabis Home Cultivation Limits