"Assuming that Prop 64 passes."
It might be a while. Go see a doctor in person or online. Cannabis is great medicine. With that doctor’s recommendation you can also grow your own cannabis, outdoors in the sunshine.
Assuming you’re asking when adults over the age of 21 will be able to purchase cannabis from adult use outlets — the answer is not until 2018.
Proposition 64 sets for the framework for the adult use market, but state licensure for adult use sales will not occur until 2018.