Know the Laws
Here’s everything you need to know about marijuana in Massachusetts.
What to Know
Legislation, Statutes, and Regulations
- St. 2012, c. 369 was repealed by St. 2017, c. 55, s 47
The colocated regulations, 935 CMR 502.000, were repealed and incorporated into the adult- and medical-use regulations.
The regulations linked on our website are unofficial and for informational purposes only. Official versions, including prior versions, can be purchased at the State Bookstore at: www.sec.state.ma.us/spr/sprcat/catidx.htm.
Qualifying Patients over 18 years of age.
Qualifying Patients over 18 years of age must be approved by a physician and certified by the state before being legally allowed to possess up to a 60-day supply of marijuana. Learn more
Qualifying Patients under the age of 18.
Qualifying Pediatric Patients under the age of 18 must be approved by two Massachusetts-licensed certifying physicians, who must diagnose the Patient as having either a debilitating life-limiting illness or condition. Learn more
You can grow it at home.
Massachusetts law allows registered medical marijuana patients to grow up to twelve flowering and twelve vegetative cannabis plants in your home for personal use. Adult-use consumers may grow no more than 6 cannabis plants or up to 12 plants for two or more adults. You may also apply for a Hardship Cultivation, which allows Registered Qualifying Patients to grow enough marijuana to yield a 60-day supply for personal medical use.
It’s illegal to consume medical marijuana in public.
You cannot use medical marijuana in any form—including smoking, vaping, or eating—in public places or on federal land.
Conditions approved for medical marijuana in Massachusetts include:
- Amyotrophic Lateral Sclerosis (ALS)
- Crohn’s disease
- Hepatitis C
- Multiple Sclerosis
- Parkinson’s disease
Hardship Cultivation Registration
Registered Qualifying Patients may apply for a Hardship Cultivation Registration due to financial hardship, physical incapacity to travel to a Medical Marijuana Treatment Center (MTC), or living beyond a reasonable distance of an MTC. A Hardship Cultivation Registration allows Registered Qualifying Patients or their Caregiver(s) to cultivate a limited number of plants sufficient to maintain a 60-day supply of marijuana. Learn more
Out-of-state residents cannot purchase medical marijuana in Massachusetts.
Only Registered Qualifying Patients who are residents of Massachusetts or their Caregivers are allowed to purchase medical marijuana.
Check the rules where you live and work.
Employers, landlords, cities, and towns may have their own policies governing the use of marijuana.
You can’t cross state lines with marijuana.
It’s illegal to drive across state lines with any kind of medical marijuana product. It’s also against the law to transport it on a plane, train, boat, or other mode of transportation outside of Massachusetts.
You can’t mail it.
You cannot send medical marijuana by mail—even to states and countries where marijuana or medical marijuana use is legal.
If you have more than one ounce of cannabis in your home, it must be locked in a secure place. In fact, it’s best to store all cannabis-based products in childproof packaging and locked away to keep kids and pets safe.
You must be 21 years or older to purchase or grow adult-use marijuana.
You’ll need a government-issued ID to buy from a Marijuana Retailer in Massachusetts.
There’s a limit to how much you can carry.
Massachusetts law permits you to carry up to one ounce of marijuana. You may possess up to 10 ounces in your home.
There’s a limit to how much you can grow.
Massachusetts law allows you to grow up to six cannabis plants in your home for personal use, or up to 12 plants for two or more adults. Learn more about Home Cultivation.
It’s illegal to consume marijuana in public.
You cannot use cannabis in any form—including smoking, vaping, or eating—in public places or on federal land.
Keep marijuana in a closed container while on the road.
Just like alcohol, it’s illegal to have an open container of any form of marijuana in the passenger area of a car. An individual may receive a civil penalty of up to $500 for having an open container of marijuana in the passenger area of a vehicle while on the road or at a place where the public has access. Store marijuana in a closed container and place in your trunk or a locked glove compartment.
Don’t cross state lines with marijuana.
It’s illegal to drive across state lines with cannabis. It’s also against the law to transport it on a plane, train, boat, or other mode of transportation outside of Massachusetts.
Don’t mail it.
You cannot send marijuana by mail—even to states and countries where marijuana use is legal.
Lock it up.
If you have more than one ounce of cannabis in your home, it must be locked in a secure place. In fact, it’s best to lock away all cannabis-based products in childproof packaging to keep kids and pets safe.
Don’t get behind the wheel when you’re high.
It’s illegal to drive while under the influence of cannabis. Take public transportation, contact a ride-share, or catch a lift with a sober friend.
Check the rules where you live and work.
Employers, landlords, cities, and towns may have their own policies governing the use of marijuana.
A landlord cannot be punished by the state for allowing marijuana consumption .
The Marijuana Justice Act of 2017 prohibits a landlord from being punished under state law for allowing marijuana consumption or other marijuana-related activities conducted lawfully under the 2017 law and the Commission’s regulations on the landlord’s property.
Out-of-state visitors can purchase marijuana, but…
If you’re visiting from another state, you must be 21 years or older and present a valid government-issued ID to purchase cannabis or cannabis-based products from an adult-use Marijuana Establishment in Massachusetts.
However, you must enjoy your purchase in Massachusetts, since it’s against the law to transport marijuana across state lines—whether it’s by car, plane, train, boat, or any other mode of transportation. It’s also illegal to mail any type of cannabis-based product, including edibles, even if the final destination is a state, territory, or country that has legalized marijuana.
If you’re staying at a hotel or other type of rental accommodation, inquire about marijuana use policies prior to consuming.
So You Want to Grow Cannabis at Home in Massachusetts
Massachusetts legalized adult-use cannabis in 2016, but it took more than two years before retailers across the state could begin legal sales. Even today, fewer than a dozen adult-use shops operate in the Bay State.
But the Massachusetts cannabis law also contains a section that allows for folks to grow their own cannabis at home—and that provision kicked in immediately as the new law took effect. Whether you’re wanting to avoid long dispensary lines or are just curious about flexing your green thumb, here’s what you need to know if you want to grow cannabis at home.
Who Can Grow?
Are you an adult 21 and over? You can grow up to six plants in your home. Married? Living in sin? Got a couple roommates? A household that consists of more than one 21+ adult is allowed to grow up to 12 plants. But that’s it! No more, regardless of how many grad students you can stuff in an old Victorian.
Where Can You Grow?
If you own your home, you’re good. For those who rent, keep in mind that landlords can set their own policies and may legally restrict cannabis cultivation. Check your lease to see if anything is written, and if you’re unsure, ask your landlord.
Whether indoors or out, your grow space needs to be protected with a lock or some sort of security device. Also, you need to keep your plants out of sight. State law says plants may not be visible from a public place without the use of “binoculars, aircraft or other optical aids.”
At the moment, there is no legal way to purchase seeds or starters in Massachusetts.
While these restrictions may induce eyerolls, breaking the state’s home cultivation law could cost you. In addition of a fine up to $300, you could lose your plants—so keep them locked up and out of sight!
For growers just starting out, growing indoors is a popular choice. You can designate a small grow space in your home, add some locks, and ensure that nobody can see them from outside.
If you’re dedicated to growing outdoors during the warmer months, we can help with that, too. Plan to find a space that is more discreet than where you keep your prize rose bushes.
How Do I Start?
Here’s where it gets a little tricky. Sure, you can head down to your local grow store (more on that in a future article) or even online and stock up on lights, fans, and a grow tent… but what about the plants themselves?
At the moment, there is no legal way to purchase seeds or starters in Massachusetts. Neither state-licensed cannabis retailers nor anyone else can legally sell them. Under state law, however, gifting is allowed. So if you know someone who is already growing, perhaps you can persuade them to clip you off a clone.
If that doesn’t work, it doesn’t hurt to ask around. Groups of local home growers often set up trades to exchange seeds and diversify the strains they grow. Check to see if your local grow store has any information, or look on social media sites such as Facebook or Instagram for cannabis seed or plant exchanges.
There are also online outlets that advertise cannabis seeds. These businesses are generally based in other countries and operate in a gray area of the law.
What Can I Do With What I Grow?
Enjoy it! You are welcome to smoke, vape, cook, make tinctures, or do pretty much whatever you want with your harvest—with just a few exceptions.
First, extraction. The law prohibits the production of “cannabis-based extracts or concentrates at home by means of any liquid or gas, other than alcohol, that has a flashpoint below 100 degrees Fahrenheit.” This is meant to prevent home-extraction using volatile compounds such as butane, which can be incredibly dangerous if used incorrectly.
You can gift seeds and cannabis clones, too!
If you’re all about concentrates, there are plenty of other options to explore. Try making hash by hand, pressing rosin, or even whipping up a batch of bubble hash.
If you’re feeling generous, you can also gift your stash. While you can’t legally sell anything you harvest, state law says you can gift up to an ounce of cannabis flower at a time to other adults 21 and older.
And remember: You can gift seeds and cannabis clones, too. It’s a great opportunity to pay it forward as a home grower while plants are still hard to come by.
The pioneer state of Massachusetts has a long history as a forward thinking state and has been one of the more pot friendly states since first decriminalizing possession in 2008. Massachusetts continues to expand marijuana laws for possession and growing, leaving a lot of people wondering where to find quality cannabis seeds in Massachusetts. Mosca Seeds has the answer with quality cannabis seeds for all of Massachusetts including the capital city of Boston, Plymouth, Worcester, Springfield, Lowell, Cambridge and anywhere in the state.
Massachusetts is well known for the landing of the Mayflower in 1620 at Cape Cod, and the first Thanksgiving with the Wampanoag tribe which still exists in Massachusetts today. The northeastern state boasts academic excellence with Harvard University dating back to 1636, Massachusetts Institute of Technology, and the most Supreme Court Justices coming from Harvard Law School alumni.
Massachusetts is the most populous state in the New England region with beautiful coastline, Martha’s Vineyard, The Boston Harbour, and of course, the 17-time NBA championship winning Boston Celtics. With the state name derived from the Native American Massachusett tribe which means “great mountain place”, Massachusetts is a great place to grow your own with weed seeds online from Mosca Seeds.
Is Marijuana Legal in Massachusetts
Massachusetts started it’s weed friendly legislation back in 2008 by first decriminalizing the most beautiful plant on earth, then moved to legalizing medical marijuana in 2012. Legislators then legalized recreational adult use marijuana in 2016 and the first adult-use rec marijuana stores opened in 2018.
According to the Cannabis Control Commission of the Commonwealth of Massachusetts, people 21 years of age and older may possess up to one ounce of marijuana on their person and no more than 5 grams of marijuana in the form of a concentrate. Adults 21 and over can possess up to 10 ounces of marijuana in their home in Massachusetts, as long as anything over one ounce is secured and locked. If marijuana or marijuana products in excess of one ounce are not locked in the home, the civil penalty could be up to $100 with forfeiture of the marijuana.
Marijuana cannot be smoked in public or in places where tobacco is prohibited. It is also against the law to consume marijuana when driving or with an open container of marijuana when driving.
Growing Cannabis Seeds in Massachusetts
Adults 21 years of age and older can legally grow their own cannabis garden in Massachusetts up to 6 plants. If more than one adult over 21 lives in the home, up to 12 plants can be grown at the residence. All plants must be grown in a locked area either with a lock or a security device. When growing at home in Massachusetts, you’ll need to make sure all your plants are not visible from a public place outside the home.
This region of New England has hot and humid summer months that can make for good outdoor growing conditions although you’ll have to move to an indoor grow room if you want to grow in the fall and winter. Learn more about home cultivation in Massachusetts here, and remember the key to growing a quality cannabis garden is to start with quality cannabis seeds. If you are in need of some high-quality cannabis seeds in Massachusetts, Mosca Seeds has just what you’re looking for.
Mosca Seeds offers a wide selection of high quality cannabis seeds in your favorite strains such as indica high THC strains, a more mellow sativa strain, or a hybrid blend. With many cannabis cup awards, Mosca is recognized for delivering quality pot seeds online to any state in either autoflowers, feminized, or regular weed seeds. Check out the Seed Bazaar to peruse the beautiful buds and plants you can grow with quality cannabis seeds in Massachusetts.