I am trying wintersowing and if I am successful, I will have lavish beds of annuals come spring. I will have to do a lot of watering if I do have lots of beds. My well water is too nasty to drink, even though I have a substantial treatment system. Untreated water is extremely hard with high levels of calcium, magnesium, and iron. The treated water still smells bad but has been softened and most of the iron is removed. However, I am concedned about the sodium content of the treated water. I use bottled water for my houseplants, but I have to choose whether to water outdoors with treated or untreated water. Using the untreated water is a chore because it comes only from the hydrant in my Siberian huskies' kennel and I have to use a very long set of hoses.
Any ideas about which source of water would be best for the outdoor plants?