couple of things about growing outdoors. the less effort you put in, the better. weed is a strong plant, if it's going to make it to maturation, it shouldn't need much of your help. there's nothing worse then babying your plants then having some punks jack em or some deer eat them. throw in your seeds/clones and let nature run it's course.
you should always plan for 70% attrition. most of them will die, be eaten, be stolen, etc. plan for the worst, hope for the best. the best time to plant them is probably late may/early june i'd say. don't plant them too early, or else they get too tall. i had friends last year who had their plants get to 7 meters tall (no joke) and they ended up being too top heavy and falling over. they only cropped two pounds from their plants. spiders are your friends btw, they kill the other insects that hurt your plants. make sure to spread out your plants. don't put all your eggs in one basket. spread them around in different spots.
i know people who booby trap the fuck out of their spots. this is to deter plant eating animals and plant stealing thugs. i've heard some funny stories about what happens when the traps work...
and the most important thing: do it in BC. the laws are more lax and the climate is the best for outdoors.