Growing Marijuana In Maine

Growing marijuana in Maine is finally legal! If you’re asking how many plants can you grow in Maine, here’s the quick answer: Adults in Maine can now legally grow up to three marijuana plants at home. That includes all of the harvest from those plants, and/or up-to 12 immature plants.

Please note: ILGM is NOT a legal adviser. Information contained in this website is intended as general introductory information only. The information contained on this website is not legal advice. It should not be construed as legal advice and should not be relied upon as such.

To get started, learn the rules.

Medical Marijuana

Medical Marijuana

Maine previously approved the use of marijuana for a large number of conditions. These conditions include neurological conditions such Alzheimer’s disease, multiple sclerosis, and Parkinson’s disease;  life-threatening conditions such as cancer, HIV or AIDS, and epilepsy and digestive disorders of inflammatory bowel disease and nausea.

They also include  Amyotrophic Lateral Sclerosis, Cachexia or wasting syndrome, Nail-patella syndrome, Huntington’s disease, and Crohn’s disease. Of course, Maine also did not forget Glaucoma, Hepatitis C, Post-traumatic stress disorder (PTSD), and chronic pain.  However, you no longer need a qualifying condition to be a part of the medical program. If your doctor thinks you should use marijuana therapeutically, that is enough.

Download my free marijuana grow guide and start growing high-quality strains

Grow Bible

  • Grow with my Quick Start Guide
  • Discover secrets to Big Yields
  • Avoid common grow mistakes

    The medical marijuana law in Maine

    Medical marijuana patients in Maine can have 2.5 oz of marijuana in their possession at any time. When it comes to growing marijuana, they are allowed to have six mature plants at a time.

    The use of medical marijuana is legal in Maine
    The use of medical marijuana is legal in Maine

    Maine has dispensaries for buying medical marijuana, but patients who would like to have their marijuana custom grown can have a personal caregiver. Maine Marijuana caregivers need to be at least 21 years old and are allowed to grow plants on behalf of a patient.

    Patients from other states can use and purchase marijuana in Maine. Get your medical marijuana card at


    In addition to their medical marijuana program, Maine also legalized marijuana possession. Anyone possessing less than 2.5 ounces will receive no penalty and no fine.  If they have more than 2.5 ounces, it becomes a crime and could include jail time and a fine. Public use of marijuana is a civil infraction and could result in a $100 fine.


    Keep in mind, proof of medical need will cancel any possible fines. So make sure you always register as medical marijuana patient. It’s very easy and not expensive and, most important, it can save you a lot of trouble. Get your card at

    Growing in Maine

    Growing in Maine

    You don’t need medical permission to legally grow marijuana at home in Maine. Let’s start with a shortlist, followed by more details.

    • The minimum age to grow is 21
    • Possess an unlimited number of seedlings
    • Have no more than 12 immature marijuana plants
    • Have no more than 3 flowering marijuana plants
    • Keep the entire harvest of your 3 plants
    • Grow indoors only in your own residence
    • Outdoor growing can be on your property or on a friend’s property with written permission
    • Outdoor grows must not be visible without the aid of binoculars or aircraft
    • Plants must have an identifying tag that includes a driver’s license or identification number

    Maine Growing Laws In-Depth

    Now that we know the basics, a little more explanation:

    You must be 21 to grow your own marijuana in Maine.

    At 21 you’re officially an adult. At that age, you can drink, go to a casino, and now, grow marijuana.

    You can grow an unlimited number of seedlings.

    Seedlings are nonflowering marijuana plants that are no taller than 24 inches and no wider than 18 inches.

    Seedlings can be plants from seed or clones from a mother plant. The great thing about this rule is that you can grow as many as possible and select the strongest plants for the next stage, the vegetative stage.

    You are limited to 12 immature plants.

    An immature or vegetative marijuana plant is taller than 24 inches and wider than 18 inches. These plants are in the vegetative stage and are not producing buds yet. They need 18 hours of light and 6 hours of complete darkness per day.

    When you change the light cycle from 18 hours of light to 12 hours of light, the plant ‘thinks’ that winter is coming because of the decreasing amount of light. In nature, this happens around August when days get shorter. For the plant, this is the signal to start producing flowers.

    Also read “Cannabis seedling stage

    You are limited to 3 flowering plants.

    The flowering stage is triggered by light. It lasts 7 to 9 weeks, depending on the strain.

    If you grow indoors, it’s very easy to change the light cycle and control the timing of the flowering stage. Just modify the settings from 18 hours of light to 12 hours of light. If you grow outdoors, mother nature is in control.

    Keep only the harvest of your plants.

    You’re not allowed to have more weed in your house than the harvest from 3 plants. Of course, every harvest is different, but expect ounces of marijuana, not pounds.

    If your last harvest hasn’t finished and you are ready to harvest again, you will have a ‘problem.’ However, you can always find someone that will appreciate a gift of weed. Remember to give it away, though. You cannot sell it or exchange it for any goods.

    Grow in your own residence.

    The law is clear on this one. Do not plan to grow marijuana in your office or at your mom’s place.

    If growing outdoors, grow on your own property.

    There is no need to grow in the forest or other public places in Maine. If you don’t have property where you can grow, ask a friend or a neighbor if you can grow on theirs.

    Make sure you have written permission. This exception makes it very easy for those without a garden or a way to grow indoors to enjoy the art of growing weed.

    Grow marijuana on your own property
    Make sure to grow marijuana on your own property

    If you have nowhere to grow, ask a friend or somebody you know if they will let you. See if anyone is willing to do a small volunteer community garden. If you don’t know anybody, try placing an ad on craigslist.

    Buy Seeds for Maine

    We selected the best seeds to grow in the Maine climate! If you are planning to grow outdoors then, check out our custom collection of Maine weather-approved seeds.

    If growing outdoors, keep your plants stealth.

    Your plants should not be visible from the public road without visual aids.
    Build a fence around your plants or build a little greenhouse. Remember that some marijuana plants can grow over 6 feet tall!

    Tag your plants.

    All of your plants must have a tag that includes your name and your driver’s license number or identification number. Plus, you must be a resident of Maine.

    Tag your plants
    Tag your plants

    This goes for all plants. It doesn’t matter if they’re in your home, your garden or in your friend’s garden. They all need a tag.

    As you can see, most adults in Maine should be able to grow their own marijuana. And for those who cannot, there is probably someone that can share some outdoor space.

    Things You Cannot Legally Do in Maine

    I have gotten a lot of emails with questions about what is and isn’t allowed in Maine. We’ve discussed the rules, now here are a few things that are not allowed:

    • Growing at multiple places and/or having more than 3 plants in your name *this recently changed from 6 plants
    • Putting plants in a friend’s name and taking care of those plants
    • Renting out space to people to grow marijuana (for money)
    • Selling your harvest
    • Storing your harvest someplace other than your home
    Things You Cannot Legally Do in Maine
    Take note of the things that are not legally allowed in Maine when it comes to cannabis

    Based on the rules, these things should be self-explanatory. However, if you have more questions or comments, leave them below in the comment section.

    To start growing in Maine,  download my free marijuana grow bible. It will discuss the best ways to grow medical marijuana, create a grow room, and prevent infestations and diseases. The free Marijuana Grow Bible has all of the information needed to get started.

    Once your grow room is ready, pick out the appropriate seeds and order them. I Love Growing Marijuana carries a large variety of seeds for different needs and conditions. Choose one that best fits what you are looking for, and we will ship it fast and discreetly.  Our seeds are guaranteed to germinate, which is the first step to growing the best marijuana in Maine.

    Download the Free Harvesting Guide to learn more about when and how to harvest your Marijuana plants.

    Harvest Guide

    harvest guide
    • Time your harvest for Perfect Taste
    • Get THC levels for a Perfect High
    • Don’t waste any Precious Bud

      Latest Updates

      December 2016 – Legalization Recount, The Fight Is Over: Weed Wins in Maine

      FAQs about growing marijuana in Maine

      What is Maine’s medical marijuana program?

      Yes, they have a medical marijuana program wherein patients in Maine can possess 2.5 oz of marijuana at any given time. When it comes to growing marijuana, they can grow six mature plants at a time.

      What are the fines for those who will break the possession and growing limits?

      If anyone is caught possessing more than 2.5 ounces of marijuana in Maine, it is considered a crime and could include a fine and jail time. Public use of cannabis is a civil infraction and could result in a fine amounting to $100.

      Can I have my outdoor space rented out for marijuana growing purposes?

      No, Maine residents are only allowed to grow marijuana in their own property.

      What’s your experience with marijuana where you live? Let us know in the comments!

      It’s just a plant, after all …


      Avatar for Jenny Bloom

      Jenny Bloom

      Editor-in-Chief at I Love Growing Marijuana

      Jenny is ILGM's unstoppable force when it comes to quality control for all the content on the blog. In the meantime, she manages to write many of the articles herself as well. She's not a lawyer but is well-read on all the latest marijuana legislations, which she always keeps up to date!... [Read full bio]


      marijuana grow bible
      • Grow With My Quick Start Guide
      • Discover Secrets To Big Yields
      • Avoid Common Grow Mistakes