Whether you can water vegetable plants with water that has been treated by a water softener depends on the type of softener. The University of Florida notes that reverse osmosis and magnetic water softeners are fine for watering plants, while many ion exchange systems remove the calcium and introduce sodium, which could cause the soil to become too salty.
About this Author
Marie Notnats enjoys learning about new topics and teaching people new skills. She has been writing professionally since 2008. She is a professional horticulturist with a Bachelor of Science degree in horticulture from Brigham Young University. She writes for About.com, Examiner.com, eHow, and assorted gardening blogs.