Michigan CannabisHome Growing Laws
Everything you need to know about legally growing cannabis at home in Michigan. Stay informed and grow with confidence.
Age Requirement
21+ years old
Plants Per Household
12 plants max
No License Required
Personal use
Legal Since
December 6, 2018
Overview
On December 6, 2018, Michigan legalized adult-use cannabis through the Michigan Regulation and Taxation of Marihuana Act (MRTMA / Proposal 1). This landmark legislation allows adults 21 and older to cultivate cannabis at home for personal use. Michigan joins a growing list of states that recognize the right of adults to grow their own cannabis.
The home cultivation provisions give Michigan residents the legal right to grow their own supply.
What's Allowed
- Growing up to 12 cannabis plants per household
- Possessing up to 10 oz of cannabis at home
- Keeping all cannabis produced by your plants
- Processing your harvest for personal use
- Using your own cannabis in private
- Gifting up to 2.5 oz to another adult 21+
Not Allowed
- Exceeding 12 plants per household
- Growing plants visible from public places
- Growing in an unlocked area accessible to the public
- Selling cannabis without a commercial license
- Growing if you're under 21 years old
- Growing on property where owner prohibits it
Understanding Plant Counts
| Household Size | Mature Plants | Immature Plants |
|---|---|---|
| 1 Adult (21+) | 12 | 12 |
| 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 Enclosure
Plants must be kept in a locked enclosure on your property. This prevents public access and keeps your grow secure.
Not Publicly Visible
Plants cannot be visible from public places without using aircraft or optical aids like binoculars. Indoor growing is the easiest solution.
Private Property
You must grow on property you own or have permission to cultivate on. Check with landlords before starting a rental grow.
If You're a Renter
While Michigan law allows home cultivation, your landlord or lease agreement may have restrictions. Here's what to consider:
- •Property owners can prohibit cannabis cultivation
- •Review your lease for cannabis-related clauses
- •Federally subsidized housing prohibits cannabis
- •Get written permission from landlord if possible
- •Consider odor control to be a respectful tenant
Important: Extraction Methods
Using volatile solvents for cannabis extraction is illegal in Michigan, even for personal use. This includes:
- • Butane (BHO extraction)
- • Propane
- • Other flammable gases or liquids
Non-volatile methods like Rosin pressing, Ice water hash, Dry sift, or Infusing with food-safe oils are permitted for personal use.
Tips for Staying Compliant
- 1
Generous Limits
Michigan allows 12 plants per household—one of the most generous limits in the country. Plan your grow space accordingly.
- 2
Lock It Up
All plants must be in a locked enclosure. A locked room, closet, or grow tent in a locked room satisfies this requirement.
- 3
No License Needed
Unlike some states, Michigan doesn't require a license or registration for personal home cultivation.
- 4
Home Storage
You can keep up to 10 oz at home, plus any amount produced by your plants. Over 1 oz must be secured with a lock.
- 5
Check Local Rules
Cities and townships can set their own regulations. Check your local ordinances for any additional restrictions.
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.