Yes if canada rules as is then no province has control over it only the federal rules would count. And I'm not sure the amount of plants any 1 person can have recreationally but I know that they allow prescription holders to grow their own medication.
Here are some key points around legalized marijuana:
- Production of cannabis is regulated by the federal government, with provinces and cities given more powers over retail sales in stores that can be either private or government-owned
- There are tough restrictions on packaging and advertising to ensure that smoking doesn’t appeal to youth
- Marijuana use remains illegal for people younger than 18, and no individual can possess more than the equivalent of 30 grams of dried cannabis
- Most importing or exporting of marijuana remains illegal
- Police can still write tickets for some minor infractions, a downgrade from the old system that often meant criminal charges could be filed
- Sales are subject to an excise tax and regular sales taxes, with excise revenue split 75-25 between the provincial and federal governments for the first two years
- A separate law is reworking the powers police have to check for impaired drivers
- Some medical use of marijuana is already legal in Canada