Click on the little fella in the upper right corner and the click on "Your Profile". When the next page comes up click on "Change your public profile". Then on the next page simply fill in your location and your "Plant Hardiness Zone". You can find your zone by Googling "Plant Hardiness Zones of Canada". Your hardiness zone would probably correspond on a Zone 0, a zone that covers the far northern tier of states in the USA.
I am sorry, I simply don't know anything about watering with "softened" water. If you can, collect rain (or perhaps snow......LOL) and use that at room temperature. You can certainly purchase bottled water to use as well.
