growing weed in maine

Frequently Asked Questions

Adult Use

Can I buy adult use marijuana?

Until adult use marijuana stores are licensed and open, it is illegal to buy or sell non-medical marijuana in Maine.

See: 28-B M.R.S. §1501(1)(C)

How old do I have to be to consume marijuana and marijuana products?

In order to possess or use non-medical marijuana in Maine, you must be 21 years of age or older.

See: 28-B M.R.S. §1501

Where can I lawfully consume marijuana?

Using marijuana in any form (smoking, eating or vaping) isn’t allowed in public places, including amusement parks, ski resorts, sporting and music venues, state and national parks, campsites, playgrounds, sidewalks and roads, marijuana retail businesses, bars, restaurants and outdoor or rooftop cafes.

So where can you use it? Marijuana use is legal within the confines of private property. Just keep in mind that property owners, landlords, and rental companies can ban the use and possession of marijuana on their premises.

See: 28-B M.R.S. §1501(2)(A)

What are the rules around federal property?

Marijuana is legal under State of Maine law. Federally, it is not legal. If you’re on federal property, such as a national park or a border crossing, you can’t even have it in your possession.

See: 21 U.S.C. § 812

What are the laws on driving and marijuana use?

It is illegal to use marijuana in a vehicle. This goes for both the passenger and the driver.
It is also illegal to drive under the influence of marijuana. You could be charged with an OUI.

See: 28-B M.R.S. §1501(2)(B)(1), 29-A M.R.S. §2411

How much marijuana can I possess?

Adults 21 years of age or older can possess up to 2.5 ounces of a combination of marijuana, marijuana concentrate and marijuana products, including no more than 5 grams of marijuana concentrate.

See: 28-B M.R.S. §1501(1)(B)

How many plants can I grow?

Mainers can grow marijuana for personal use. As many as three mature, 12 immature plants, and an unlimited number of seedlings are allowed per resident 21 years of age or older.

These restrictions do not apply to the cultivation of marijuana for medical use by a qualifying patient, a caregiver, a registered caregiver or a registered dispensary as authorized by the Maine Medical Use of Marijuana Act.

See: 28-B M.R.S. §1502(1)

What are some of the rules related to growing marijuana for personal use?

First, keep it out of sight. An adult who chooses to grow plants for personal use must make sure their marijuana is not visible from a public way without the use of binoculars or other visual aid.

See: 28-B M.R.S. §1502(2)(A)

Second, make sure it’s locked up. An adult who chooses to grow their own plants must take reasonable precautions to prevent unauthorized access by individuals under the age of 21.

Finally, make sure the ownership of the plants is clear to law enforcement that may come across them. If you’re growing marijuana for personal use, the plant(s) must be tagged with a legible label that includes your name, driver’s license or state identification card number, and a notation that the plant(s) are being grown as authorized by law.

For example:
Connor S. Sample, Jr.
ID: 1234567
Personal Adult Use: Title 28-B, Section 1502

If the parcel or tract of land you are growing on is owned by someone else, you must have their written permission to grow and care for your plants and include the landowners name on each plant’s label.

See: 28-B M.R.S. §1502(1)(C) and (2)(C)

Medical Use


Who can buy medical marijuana?

Only medical patients can buy medical marijuana in Maine. Individuals who have received a patient certification from a medical professional may legally access medical marijuana from a caregiver or dispensary. Cards are available to Maine residents only.

Patients visiting Maine from another state may be able to purchase medical marijuana from a registered caregiver or dispensary if they have valid patient identification credentials (like a registry or patient identification card) and their state of residence allows them to use their state-issued credential to purchase medical marijuana in Maine.

How many dispensaries does Maine currently have in operation?

Maine has eight dispensaries. A list is available online here:

Please note: dispensaries are not to be confused with caregivers. A caregiver may operate one retail store to sell their products.

What is the difference between a dispensary and a caregiver retail store?

Until recently, dispensaries were required to by nonprofit entities and there was only one per Maine Department of Health and Human Services Public Health District. At present, the most notable difference is that dispensaries can grow an unlimited number of marijuana plants.

How much does it cost to obtain a patient certification?

The cost for a patient certification depends on the medical provider conducting the examination and issuing the certification.

The Maine Medical Use of Marijuana Program provides patient cards to registered providers. In order to ensure patient access to the program, the State of Maine has never charged medical providers for the cards they provide to qualifying patients.

If an individual is interested in obtaining a medical card, they may wish to have those discussions with their primary care physician or other trusted medical provider. They may find in doing so that they are able to obtain a card at little to no cost to them.

Are temporary/digital/electronic patient certifications valid?

No. Temporary and/or digital medical marijuana patient cards or certifications are not an acceptable form of identification for the purposes of obtaining marijuana for medical use in Maine.

To be a qualifying patient in Maine’s program, among other things, an individual must possess “a valid written certification. ” A written certification is only valid if it is “a document on tamper-resistant paper signed by a medical provider. “. These requirements are written into law and aim to preserve the integrity of the medical marijuana program by reducing the possibility of altering and tampering with valid medical certifications.

The Office of Marijuana Policy provides medical providers with tamper-resistant patient certification paper at no cost.

Where can I find statistical information on the medical program?

You may be interested in reviewing the annual reports or open data of the Maine Medical Use of Marijuana Program.

Caregivers/Dispensaries/Medical Providers

What do I need to apply for or renew a registry identification card (caregiver, caregiver assistant, dispensary employee, etc.)?

Download, complete, and submit the appropriate medical use application. Among other things, you will need to provide a copy of your Maine-issued driver’s license or identification card as proof of residency.

Please review all materials for completeness prior to submission to ensure their timely consideration and processing.

In accordance with Governor Mills’ civil emergency declaration and corresponding executive order, the Office of Marijuana Policy will accept Maine driver’s licenses or identification cards that expired on or after March 15, 2020 as valid for the purposes of registry identification card applications and renewals. The executive order issued by Governor Mills deems these forms of identification extended until 30 days after the termination of the ongoing civil emergency.

How long does it take to get my caregiver card?

Current law requires the Department to approve or deny an initial application or a renewal within 30 days of receipt. In the case of an approval, a registry identification card must be issued within five days of approval.

The average time frame to approve an application is currently one month.

See: 22 M.R.S. §2425-A

How much do caregiver cards cost?

The cost for a registry identification card varies depending on the number of plants being grown. At most, a registered caregiver may grow 30 mature plants or 500 square feet of mature plant canopy and 60 immature marijuana plants. Applications fees corresponding to total plant count with fees growing incrementally by $240.

Mature Plants Immature Plants Fee
6 12 $240
12 24 $480
18 36 $720
24 48 $960
30 60 $1,200

See: 22 M.R.S. §2425-A, 10-144 C.M.R. ch. 122, § 8(C)(1)

Where can I find information on which states authorize their residents to use their medical marijuana credential while visiting Maine?

OMP’s guidance on visiting patients and a list of approved states can be found here:

Can I conduct sales to a visiting patient who presents a medical marijuana credential and a form of identification from two different states?

No. A visiting medical marijuana patient must possess photographic identification or a driver’s license from the same jurisdiction as their valid medical marijuana credential.

See: 22 M.R.S. §2423-D.


Can I use marijuana if I am on probation?

For individuals on probation, there are rules and restrictions for marijuana that must be followed. Contact a probation officer to find out more.

Who assists the Office of Marijuana Policy with rulemaking?

Does Maine track and trace (seed-to-sale) marijuana products?

Maine requires the tracking and tracing of marijuana and marijuana products in both our adult use and medical use programs. OMP is in the process of deploying a software solution with Metrc to allow licensees and registrants to enter their information.

Can I travel outside of Maine with marijuana?

It’s illegal to leave Maine with any marijuana products—medical or recreational. Do not cross state lines or approach border crossing with marijuana in your possession. Mailing marijuana from Maine is also illegal.

See: 21 U.S.C. § 812, CBP Statement on Canada’s Legalization of Marijuana and Crossing the Border

Why does OMP use the term ‘marijuana’ instead of ‘cannabis’?

Marijuana is the legal term used in Maine law to describe the product and establishments we regulate and license.

Growing weed in maine

Choosing what soil/medium to use for growing your marijuana plants is arguably the most important decision you’ll make. Choose the wrong blend and you could be signing yourself up for weeks of measuring, flushing, and writing into chat forums for help! Choose the right one, and your experience instead could be filled with sharing photos on “Weedstagram” and harvests that seem never ending.

If you’d like an easy experience, choose Stonington Blend Grower’s Mix. We’ve done all the hard work for you! We’ve taken into account all of the necessary factors for your cannabis plants to perform at their absolute best:

  • What is the best pH level?
  • What are the water retention requirements?
  • What is the best nutrient makeup?
  • What is the best timing for the nutrients to release?
  • What will ensure we provide the cleanest taste?
  • What is the plant’s preferred soil texture?
  • What is the plant’s preferred soil drainage/moisture level?
Coast of Maine’s Stonington Blend is a pre-mixed “super soil” that contains EVERYTHING your cannabis plants need for a full grow cycle. YOU ONLY NEED TO ADD WATER!

STONINGTON BLEND Premium Grower’s Mix – OMRI Listed for Organic Use, Stonington is a complex “super soil” that was designed completely with cannabis plants in mind. Rich in nutrients and formulated with amendments designed to boost budding, blooming and root development, Stonington Blend™ also provides the ideal balance between water retention, soil texture, drainage and aeration in a consistent growing medium. It includes mycorrhizal fungi, a combination of kelp, fish bone and alfalfa meals, worm castings, peat, coir, and lobster compost. On its own, it is enough to feed a single cannabis plant through a full grow cycle in a 15 gallon pot. Just add water!

There is no need for expensive nutrients. This blend will save you time and money and give you tremendous results! The very best soil for your backyard grow!

Available in 1.5 cf bags, or in 60 cf Supersacks!
Contact : [email protected]
– for supersack pricing and delivery information

Click to view our Cannabis Grow Catalog

Want to mix your own soil?

As cultivators have raved about the efficacy of Stonington Blend Grower’s Mix, many still want to blend and create their own “super soil.” Below you will find everything you need to do just that!

Shop Now for Cannabis Essential Products:

The Very Best Veg Stage! Stonington Blend was created specifically for growing Cannabis. Rich in nutrients and formulated with amendments designed to boost budding, blooming and root development, this complex “super soil” will take your plants growing in the vegetative stage to the next level! Designed for high performance growing in containers and large pots, this blend incorporates mycorrhizal fungi, kelp, fish bone and alfalfa meals, worm castings, peat, coir and lobster compost. For best results, grow in 15 gallon containers.

OMRI Listed, Available in 1.5cf bags and 60cf supersacks!

It’s All About That Base! – Bar Harbor Blend Organic Potting Soil is perfect for growers who want to blend their own soil mix and require a basic potting soil that is both high quality and organic.
Made with premium organic ingredients such as lobster, kelp, compost, perlite and sphagnum peat.

OMRI Listed, Available in 4 sizes and Super Sacks!
8qt, 16qt, 1cf, 2cf, and 60cf tote

Simply the best! – Seeds are very sensitive to nutrients, and germinating them in a nutrient-rich environment can actually cause them damage. Sprout Island Blend Organic Seed Starter has only a mild starter charge from the worm castings, mycorrhizae and kelp, so the seeds won’t get overwhelmed. Outstanding results! It is ready to use in cell packs or flats.

OMRI Listed, Available in 3 sizes and Super Sacks!
8qt, 16qt, 2cf, and 60cf tote

Fine Dining for Your Plants – Stonington Blend Organic Plant Food – (5-2-4) with 4% Calcium is much more than just food for your plants. It is also a “biostimulant.” Biostimulants act on the plant through different pathways to improve crop vigor, yields, quality and post-harvest shelf life. It is made with a blend of lobster, crab, fish and kelp meals PLUS, worm castings and other important natural ingredients that are all carefully mixed to ensure a consistent aggregate size. Can also be used it to super charge the biological activity of your soil after your grows.

OMRI Listed, Available in 4lb bags

Nature’s Finest Soil Conditioner! Wiscasset Blend Earthworm Castings have a coffee ground like texture and are completely odorless. They contain thousands of species of soil bacteria, amoeba, protozoa, fungi and nematodes that digest organic material and make soil nutrients more readily available to plant roots. These beneficial minerals that instantly boost plant health, and are 100% safe to use on ANY type of plant! Simply top dress your cannabis plants every 3-4 weeks to provide organic microbiology. Also great for making a compost tea!

Available in 8qt bags

Squidtastic Results! Liquid Squid for Indoor Plants – (2-3-0) is a truly remarkable fertilizer made entirely of squid. Intended to promote budding and blooming, this concentrated fertilizer also enriches the soil with plant-ready minerals, giving your cannabis plants a significant boost! Great for greenhouse and hydroponic systems and both indoor and outdoor applications. Once diluted, it can be watered-in or applied as a foliar spray. It is made from longfin inshore squid using a unique enzymatic cold digestion process.

Available in 3 sizes: 1qt, 1gal, and 2.5 gal bottles

For Big Buds & Blooms! Fish Bone Meal Organic Plant Food – (5-13-0) with 18% Calcium, is an exceptional organic fertilizer ideal for budding and blooming cannabis plants. Made from Pacific Whiting bones that are dehydrated and ground into meal, it is an excellent natural source of phosphorus, calcium, nitrogen, essential minerals and trace elements. It initiates strong root growth, promotes more budding and big blooms!

OMRI Listed, Available in 3lb bags

For Greening & Leafing ! Lobster Meal Organic Plant Food – (6-2-0) with 8% Calcium is made entirely of chitin-rich lobster and crab shell, this is the ideal organic fertilizer for outdoor containers, vegetable, herb and flower gardens. Natural nitrogen and calcium help promote strong stem growth, healthy green foliage and vigorous roots.

OMRI Listed, Available in 4lb bags

Kelp Your Plants Out! Kelp Meal Organic Plant Food – (1-0-1)
100% dehydrated Norwegian Kelp (common seaweed), a source of trace quantities of macro and micro-nutrients that will help promote healthier plants and improve crop yields. Because of this high mineral content, seaweed stimulates soil bacteria helping to increase soil fertility. It also is hydrophilic, meaning that it holds water, which is essential for newly planted containers.

Available in 4lb bags

Great for Your Outdoor Grows ! Castine Blend, Organic Raised Bed Mix is an enriched blend of fully cured, locally-sourced compost, peat, biochar, worm castings, dehydrated poultry manure, kelp meal, lobster meal, greensand, biochar, lime and mycorrhizae. This bag is teeming with microbial diversity and is the perfect base growing media for cannabis in your outdoor grow, raised bed or super-sized container. Add our fish bone meal two weeks before flower, and get ready for the harvest of a lifetime!

OMRI Listed, Available in 1cf and 2cf bags and 60cf supersacks!

Make your outdoor grow more economical and explosive with our OMRI Approved Castine Blend Organic Raised Bed mix.

If you are using raised beds or supersized containers for your outdoor grow, Castine Blend Raised Bed mix may be the right choice for you!

A balanced blend of manure compost, worm castings, lobster and kelp meal, mycorrhizae, greensand and biochar this 2 cubic foot bag of microbial diversity is the perfect base growing media for cannabis. Add our fishbone meal two weeks before flower, and get ready for the harvest of a lifetime! …Also perfect for no till growing!

Coast of Maine offers the very best organic soils and fertilizers for your indoor, greenhouse, or backyard cannabis grow! Growing with Stonington Blend couldn't be easier, you just add water! Coast of Maine's Stonington Blend is a "super soil," meaning it contains all of the nutrition your plant needs from cutting to harvest, right inside the bag. You'll only need to add water! True Organics! Carefully crafted to ensure your plants get the right nutrients during the full grow cycle. Perfect for no till grows. Perfect for indoor grows, grenhouse and hydroponic grows. The very best organic cannabis products! Organic living super soil! Organic fertilizers and meals. Liquid squid juice, Liquid Kelp