Growing marijuana at home in Maryland is legal for adults 21 and older, with a cap of two cannabis plants per household under the Cannabis Reform Act that took effect July 1, 2023. The right comes with conditions: plants must be out of public view, locked away from anyone under 21, and grown on property you own or have permission to use. Miss any of those and a legal hobby becomes a misdemeanor.
How Many Plants You Can Grow
Two plants per household. Not two per adult. Three roommates over 21 sharing a house still get two plants total between them.1Maryland General Assembly. Maryland Code 5-601.2 – Cannabis Not Cultivated in Public View, Reasonable Precautions Taken, Limits on Growers, Violations as Misdemeanor
Households with at least one registered medical cannabis patient may grow up to four plants. The cap stays at four even if more than one patient lives there.2Maryland Cannabis Administration. Adult-Use Cannabis FAQs
Anyone under 21 is prohibited from cultivating cannabis in Maryland, full stop.3Maryland General Assembly. Maryland Code 5-601.2
Where and How You Have to Grow
The statute imposes three separate requirements beyond the plant count. Each one is its own violation.
Out of Public View
Plants cannot be visible to anyone outside your home without binoculars, aircraft, or other magnifying devices. That includes visibility from a neighbor’s property. A plant on a balcony, in a front window, or in an unfenced yard likely violates this rule. Indoor grows or fully enclosed outdoor spaces are the safe options.3Maryland General Assembly. Maryland Code 5-601.2
Locked Away From Minors
You must take “reasonable precautions” to keep plants away from anyone under 21 and from unauthorized access. The statute defines reasonable precautions to include growing in an enclosed, locked space where no one under 21 has a key. A locked spare bedroom, a locked closet, or a locked grow tent all meet this standard. Plants sitting in a shared living area do not.4Maryland General Assembly. Maryland Code 5-601.2 – Statute Text
Property You Control or Have Permission to Use
You can only grow on property you lawfully possess or where the person in lawful possession has given consent. If you own your home, that’s you. If you rent, your landlord has the right to say no, and a lease clause banning cultivation is enforceable.4Maryland General Assembly. Maryland Code 5-601.2 – Statute Text Read your lease before you start. If it’s silent, get written permission.
How Much of the Harvest You Can Keep
Growing legally doesn’t authorize unlimited stockpiling. Maryland’s personal use amount caps possession at 1.5 ounces of flower, 12 grams of concentrate, or cannabis products containing no more than 750 milligrams of THC.2Maryland Cannabis Administration. Adult-Use Cannabis FAQs A healthy plant can easily yield more than 1.5 ounces at harvest, and possessing the excess can trigger penalties even though the plants themselves were legal.
You can gift cannabis to another adult 21 or older within the personal use amount, so long as no money, goods, or services change hands. Selling it, trading it, or bundling it with anything of value crosses into distribution.5Maryland Cannabis Administration. Adult-Use Cannabis Legalization Field Guide
Penalties If You Break the Rules
Growing more than the allowed number of plants, cultivating while under 21, growing plants visible to the public, or failing to secure them from unauthorized access are all misdemeanors. A conviction can bring up to three years in jail, a fine up to $5,000, or both.3Maryland General Assembly. Maryland Code 5-601.2
Excess harvest matters too. Possessing more than the personal use amount but within Maryland’s “civil use amount” (roughly up to 2.5 ounces) is a civil offense with a fine up to $250. Above that, possession becomes a misdemeanor punishable by up to six months in jail, a fine up to $1,000, or both.6Maryland General Assembly. Maryland Code 5-601 – Statute Text
If cultivation looks like it’s for distribution rather than personal use, the charges turn felony. Under 50 pounds with intent to distribute carries up to five years in prison and a fine up to $15,000. Fifty pounds or more brings a mandatory minimum of five years and a fine up to $100,000.6Maryland General Assembly. Maryland Code 5-601 – Statute Text
Federal Law Still Reaches Into Your Home
Maryland’s legalization doesn’t override federal law, and that creates problems home growers routinely underestimate. Marijuana remains a Schedule I controlled substance federally.
Federally Assisted Housing
If you live in public housing, Section 8, or other federally assisted housing, growing cannabis in your unit can lead to eviction. Federal law lets housing authorities and property owners terminate tenancy for any household member who uses a federally illegal controlled substance, and marijuana qualifies regardless of Maryland law.7HUD.gov. Use of Marijuana in Multifamily Assisted Properties
Firearms
Federal law prohibits anyone who is an “unlawful user of or addicted to” a controlled substance from possessing firearms. Because marijuana remains federally illegal, regular users fall in that category. A January 2026 ATF rule revision narrowed the definition so that isolated or sporadic use no longer automatically triggers the prohibition, but a pattern of regular, ongoing use still does.8Federal Register. Revising Definition of Unlawful User of or Addicted to Controlled Substance Grow at home and use regularly, and you likely cannot legally possess a firearm under federal law.
Seeds and Clones
Transporting cannabis seeds across state lines violates federal law, since seeds count as part of the cannabis plant under the Controlled Substances Act. Maryland’s licensed dispensaries sell seeds and clones, and that remains the legally safest way to source starting material. Ordering seeds online from out-of-state vendors is common, but it’s interstate commerce in a federally prohibited substance.
Insurance and Employment Realities
Standard homeowners policies typically exclude cannabis-related damage and liability. The widely used ISO homeowners form excludes cannabis as personal property, excludes cannabis plants from tree and shrub coverage, and excludes both personal liability and medical payments for injuries arising from cannabis use or possession. Some insurers offer endorsements that buy back limited coverage, but you have to ask. If a grow light starts a fire or water damage spreads from an indoor setup, don’t assume the policy covers it.
Maryland has no statewide law protecting employees from discipline or termination for off-duty cannabis use. Your employer can test for cannabis, refuse to hire on a positive result, and fire you for use that happens entirely at home on your own time. Some local jurisdictions have begun addressing this for specific employee groups, but no broad state-level protection exists as of 2026.