Massachusetts CannabisHome Growing Laws
Everything you need to know about legally growing cannabis at home in Massachusetts. Stay informed and grow with confidence.
Age Requirement
21+ years old
Plants Per Person
6 plants max
Household Maximum
12 plants
Legal Since
December 15, 2016
Overview
On December 15, 2016, Massachusetts legalized adult-use cannabis through the Question 4 / The Regulation and Taxation of Marijuana Act. This landmark legislation allows adults 21 and older to cultivate cannabis at home for personal use. Massachusetts joins a growing list of states that recognize the right of adults to grow their own cannabis.
The home cultivation provisions give Massachusetts residents the legal right to grow their own supply.
What's Allowed
- Growing up to 6 cannabis plants per adult 21+
- Up to 12 plants per household (if 2+ adults 21+)
- Possessing up to 10 oz of cannabis at home
- Keeping all cannabis produced by your plants
- Processing your harvest for personal use (non-volatile methods)
- Gifting up to 1 oz to another adult 21+
Not Allowed
- Exceeding 6 plants per person or 12 per household
- Growing plants visible from public places
- Growing in an area without a lock or security device
- Using volatile solvents for extraction
- Selling cannabis from your home grow
- Growing if you're under 21 years old
Understanding Plant Counts
| Household Size | Mature Plants | Immature Plants |
|---|---|---|
| 1 Adult (21+) | 6 | 6 |
| 2+ Adults (21+) | 12 (max) | 12 (max) |
What counts as "mature"? A plant is considered mature once it enters the flowering stage. During the vegetative stage, plants are counted as immature. This distinction allows you to maintain a continuous growing cycle with plants at different stages.
Location Requirements
Locked & Secured
Plants must be grown in an area equipped with a lock or security device. This can be a locked room, closet, or grow tent.
Not Publicly Visible
Plants cannot be visible from a public place without the use of binoculars, aircraft, or other optical aids. Indoor growing is recommended.
Primary Residence
Cultivation should take place at your primary residence. Check with landlords before growing in a rental property.
If You're a Renter
While Massachusetts law allows home cultivation, your landlord or lease agreement may have restrictions. Here's what to consider:
- •Landlords can legally restrict or prohibit cannabis cultivation
- •Review your lease for cannabis-related clauses
- •Federally subsidized housing prohibits cannabis
- •Get clarification from landlord before growing
- •Consider odor control for apartment living
Important: Extraction Methods
Using volatile solvents for cannabis extraction is illegal in Massachusetts, even for personal use. This includes:
- • Butane (BHO extraction)
- • Propane
- • Any liquid or gas with flashpoint below 100°F (except alcohol)
Non-volatile methods like Rosin pressing, Ice water hash, Dry sift, Alcohol extraction (non-commercial), or Infusing with food-safe oils are permitted for personal use.
Tips for Staying Compliant
- 1
Lock Your Grow
Massachusetts requires plants to be in an area with a lock or security device. A locked door or secured grow tent works.
- 2
Count by Person
Limits are 6 plants per person, 12 per household max. Harvest in cycles so you never exceed 6 flowering plants at once.
- 3
Home Storage
You can possess up to 10 oz at home plus any amount produced by your plants. Over 1 oz must be locked up.
- 4
No Volatile Extraction
You cannot use butane, propane, or other volatile solvents. Rosin presses and ice water hash are safe alternatives.
- 5
Early Adopter State
Massachusetts was one of the first East Coast states to legalize. The laws are well-established and straightforward.
Ready to Start Growing?
Now that you know the laws, learn how to grow. Our complete guide takes you from seed to harvest with step-by-step instructions.
Disclaimer: This information is provided for educational purposes only and should not be considered legal advice. Cannabis laws can change, and local municipalities may have additional restrictions. Always verify current laws and consult with a legal professional if you have specific concerns. Last updated: January 2025.