I grew for 4+ years. High quality strains from Amsterdam purchased from seed stores in Vancouver, BC.
I strongly recommend not growing. Too many problems can occur along the way. Plus, it takes about five months from seed/cutting to harvest.
Your best chance to find some is to ask younger guys who look like they party. Don't buy more than a 1/4 oz. 1st time. Be wary of a complete stranger who says "Give me the money and I'll come back with it." I was ripped off that way, once.
Good luck finding anything other than crappy, dirt tasting brown bud down there.