Yes, weed is legal in Canada for both recreational and medical purposes. Adults who meet the legal-age requirement in their province or territory may purchase, possess and use cannabis within the limits established by federal, provincial and local laws.
Canada legalised recreational cannabis nationwide through the Cannabis Act on October 17, 2018. However, legalisation does not mean cannabis can be bought from any seller, used anywhere or carried across the Canadian border.
What Is the Legal Age for Cannabis in Canada?
The minimum age depends on the province or territory.
The legal age is 18 in Alberta and 21 in Quebec. It is generally 19 in the other provinces and territories. Provincial governments can establish a higher minimum age than the federal minimum and may impose additional restrictions on possession, sales, cultivation and public consumption.
A person must show valid identification when purchasing cannabis from an authorised retailer. Giving or selling cannabis to someone below the applicable legal age is a serious criminal offence.
How Much Weed Can You Possess?
An adult may possess up to 30 grams of legal dried cannabis, or its equivalent in another form, in a public place. The equivalent limits depend on the type of product.
One gram of dried cannabis is treated as equivalent to five grams of fresh cannabis, 15 grams of certain solid cannabis products, 70 grams of certain non-solid products, 0.25 grams of cannabis concentrate or one cannabis seed.
Possessing more than the legal public limit may lead to a ticket, fine or criminal charge. Serious violations can carry imprisonment. Adults also cannot legally possess cannabis they know came from an illegal source.
Rules for storing cannabis inside a private residence may differ between provinces. Quebec, for example, permits no more than 150 grams in a private residence, regardless of how many adults live there.
Where Can You Buy Cannabis Legally?
Recreational cannabis must be purchased from a retailer authorised by the province or territory. The sales system differs by location. Some provinces use government-operated stores, while others permit licensed private businesses.
Legal products usually have plain, child-resistant packaging, a standard cannabis symbol, health warnings and a provincial or territorial excise stamp. Consumers should be careful with websites that offer nationwide shipping, avoid age verification or request unusual payment methods, as these may be illegal sellers.
Adults may generally share up to 30 grams of legal cannabis with another adult of legal age without receiving payment. Selling cannabis without the necessary licence remains illegal.
Can You Grow Weed at Home?
Federal law permits adults to grow up to four cannabis plants per residence for personal use. The limit applies to the whole household, not to each adult living there. Seeds or young plants must come from a legal source.
Provincial, territorial, municipal and property rules may create additional restrictions. Quebec prohibits personal cannabis cultivation entirely. Manitoba previously prohibited recreational home growing but began allowing adults aged 19 or older to grow up to four indoor plants per household on May 1, 2025.
Landlords and condominium organisations may also restrict cannabis cultivation. Growers must follow rules involving security, fire safety, electricity, odour and access by children.
Can You Smoke Weed in Public?
Public-consumption rules vary widely. Cannabis smoking or vaping is commonly prohibited in enclosed public places, workplaces, schools, playgrounds, vehicles, restaurants and areas where tobacco smoking is banned.
Some provinces permit cannabis use in certain outdoor areas, while others apply stricter restrictions. Quebec prohibits smoking or vaping cannabis in indoor and outdoor places open to the public, including public roads.
Private property owners can prohibit cannabis use on their premises. Legalisation does not require landlords, hotels, employers or businesses to permit smoking, vaping or cultivation.
Is Medical Marijuana Legal?
Yes. Access to cannabis for medical purposes continues under federal regulations. A patient generally needs authorisation from a healthcare professional.
Authorised patients may purchase medical cannabis directly from a federally licensed seller. Some may also apply to Health Canada to grow a permitted amount personally or designate another approved person to grow it for them. Medical possession limits may differ from the standard 30-gram recreational limit.
A medical authorisation does not allow someone to drive while impaired or ignore restrictions on smoking in public places.
Can You Drive After Using Cannabis?
No. Driving while impaired by cannabis is a criminal offence throughout Canada.
Cannabis can affect reaction time, judgement, coordination and concentration. Police may use roadside assessments, oral-fluid screening devices and blood tests when investigating suspected drug-impaired driving.
Legal cannabis possession or medical authorisation does not provide a defence to impaired driving. Penalties may include fines, licence suspension, a criminal record and imprisonment, particularly when a collision causes injury or death.
Can You Take Cannabis Across the Canadian Border?
No. It is illegal to bring cannabis into Canada or take it out of Canada without a valid federal permit or exemption.
This rule covers recreational cannabis, medical cannabis, CBD products, edibles and other cannabis products. It applies even when travelling between Canada and another place where marijuana is legal, such as certain U.S. states. Violations may result in seizure, financial penalties, arrest or criminal prosecution.
Therefore, weed is legal in Canada, but only within a regulated system. Adults must meet the applicable age requirement, buy from authorised retailers, follow possession and cultivation limits, use cannabis only where permitted and never carry it across an international border.