I live north of you and recommend starting with a 10 pack of LR2 seeds (non-feminised) from any seed shop that sells Joint Doctor's LR2. It grows well in our climate, finishes in 8 weeks, and will do just fine outside (especially if you can start them inside using an egg carton on a window ledge). Each plant should yield around between 15 - 20 grams of bud assuming you don't do anything other than water it once a week. I have grown this outside for several summers after nightime temps reach 10c. If you plant five seeds, two or three of them should be female. Make seeds and you'll be set for a LONG time. These can be used to cross with other autos, most of which can only be purchased as feminised seeds. Good luck with whatever you choose!