How many cannabis plants can you grow at home in Maine?

Each person 21+ can grow 6 mature plants, 12 immature plants, and unlimited seedlings. These limits are per person, not per household — so two adults in one home could have 12 mature, 24 immature, and unlimited seedlings.

Can Maine towns ban home cannabis growing?

No. State law explicitly prohibits municipalities from banning home cultivation. Towns may impose reasonable limitations but cannot restrict growing to fewer than the state-allowed amounts (6 mature, 12 immature, unlimited seedlings per person). This protection applies even in towns that have opted out of commercial cannabis.

Do you need to tag home-grown cannabis plants in Maine?

Yes. All home-grown cannabis plants must display a tag with your name and identification number. Tags must be securely attached and legible. Untagged plants could be treated as unlicensed cultivation.

Can you grow cannabis in an apartment in Maine?

Only with written landlord permission. Renters must obtain written consent before cultivating cannabis in a rental property. Landlords can refuse permission, and growing without permission could be grounds for lease termination. All other rules (tagging, visibility, plant limits) still apply.

Do cannabis plants need to be hidden in Maine?

Cannabis plants must not be visible from a public way — roads, sidewalks, or other public areas. Outdoor plants need screening by fencing, walls, or structures. Indoor grows and greenhouses are inherently compliant with this rule.

Growing Cannabis in Maine — 6 Plants, Can't Ban

Legal Disclaimer: This information reflects Maine cannabis law as of March 2026 and is for educational purposes only. It is not legal advice. Laws and regulations change — always verify current rules with the Office of Cannabis Policy or a qualified attorney. Cannabis remains illegal under federal law.

Last verified: March 2026

Home Growing Is Legal in Maine

Adults 21 and older can grow cannabis at home in Maine under Title 28-B. The rules are generous and, critically, municipalities cannot ban home cultivation. State law guarantees a minimum of 6 plants per resident regardless of local ordinances.

A municipality may not prohibit the personal cultivation of cannabis by a person 21 years of age or older. A municipality may enact a reasonable limitation on personal cultivation but may not limit personal cultivation to fewer than the amounts allowed under this chapter.
Title 28-B — Municipal Home Grow Protections

Plant Limits

Each person (not household) may grow:

Plant Type	Limit per Person	Notes
Mature plants	6	Flowering plants producing harvestable cannabis
Immature plants	12	Vegetative plants not yet flowering
Seedlings	Unlimited	Young plants still in early growth stage

These limits are per person, not per household. In a household with two adults 21+, you could legally have 12 mature plants, 24 immature plants, and unlimited seedlings. Medical patients have the same plant limits but enjoy significantly higher possession limits for harvested cannabis (up to 8 pounds at home).

6 + 12 + Unlimited

Mature + Immature + Seedlings per Person

Tagging Requirements

All home-grown cannabis plants must be properly tagged:

Each plant must display a tag with your name and identification number
Tags must be securely attached and legible
This requirement applies to both recreational and medical home grows

The tagging requirement helps law enforcement verify that plants belong to a legal home grower. Untagged plants could be treated as unlicensed cultivation.

Visibility Rules

Home-grown cannabis plants must not be visible from a public way. This means:

Outdoor plants must be screened by fencing, walls, or other structures so they cannot be seen from roads, sidewalks, or other public areas
Indoor grows are inherently compliant with this rule
A greenhouse or grow tent satisfies the visibility requirement

Municipalities Cannot Ban Home Grow

This is one of Maine's most important cannabis protections. State law explicitly prohibits municipalities from banning home cultivation. While towns can impose "reasonable limitations," they cannot limit cultivation to fewer plants than state law allows (6 mature, 12 immature, unlimited seedlings per person).

This stands in contrast to the opt-in system for commercial cannabis, where 85% of municipalities have not allowed retail stores. Even in a town with zero dispensaries, your right to grow cannabis at home is protected by state law.

Landlord and Rental Considerations

If you rent your home, additional rules apply:

Written landlord permission is required before cultivating cannabis in a rental property
Landlords can refuse permission — there is no obligation for landlords to allow cultivation
Growing without permission could be grounds for lease termination
Even with permission, all other cultivation rules (tagging, visibility, plant limits) still apply

Get It in Writing

If your landlord verbally agrees to let you grow, get written confirmation. A text message or email is better than nothing, but a signed addendum to your lease is ideal. Verbal agreements are difficult to enforce if a dispute arises.

Growing Tips for Maine's Climate

Maine's northern climate presents unique challenges and opportunities for home growers:

Short outdoor season: Maine's growing season typically runs May through October. Most outdoor growers start seeds indoors in April and transplant after the last frost
Autoflower varieties can be particularly effective in Maine, as they flower based on age rather than light cycle and can finish before fall weather sets in
Indoor growing is popular year-round and avoids weather dependency entirely
Harvest timing is critical — early frost can damage or destroy outdoor plants. Monitor weather closely in September and October

What You Can Do with Your Harvest

Personal use: Consume your own harvest, subject to possession limits (2.5 oz rec / 8 lbs medical)
Gift to adults 21+: You may give cannabis to other adults, but not sell it
Process into concentrates and edibles: For personal use
You cannot sell home-grown cannabis under any circumstances without a license or caregiver registration

Are You 21 or Older?

Home Cannabis Cultivation in Maine