Even with the best intentions, many of us have problems keeping household plants alive, which may actually have to do with the type of water you're using. If you have a water softener system that uses salt, that treated water may be slowly killing the plants. Softened water contains salt, which can build up and dry out plants. It's best to use filtered water whenever possible or fill up a bucket or large pitcher and let it sit out overnight. Any chlorine, minerals and even trace salt will dissipate, leaving you with perfect water for your plants.