Bottom line is that the federal law trumps any provincial attempts to quash the right to grow. Besides the legal fight, that also means that provinces who wish to stop homegrown can put many barriers up as per the regulations. So in the end, those in backward thinking provinces like Quebec and Manitoba will be in for a long drawn out battle with no clear winner for a long time. How bad it becomes in Ontario will depend on what happens in the provincial election imo. It didn't go unnoticed that the subject has barely been breached during the election, control freaks like the Cons and Liberals (particularly under Wynne) are likely to attempt controlling home grows here too. All they have to do is require some permits, fees, inspections, jump through too many hoops to discourage most people, I fully expect this in ON if either (Con/Lib) party wins a majority. A minority for Ontario would be the best outcome, let them fight amongst themselves for a few years while the home grow market gets entrenched, then it'll be too late to turn back the clock.