Watering Tips for Houseplants. #4: Preferably, water plants with bottled water, well water, or rain water. Tap water that has been sitting out for 24 hours so that the chlorine has dissolved is fine. Do not use softened water. It contains salt and will build up in the soil.
Watering Tips for Houseplants. #3: Over watering is often the reason people kill houseplants. Over watering will kill roots as they cannot absorb oxygen. Err on the side of under watering and make sure your plants dry out between waterings.