Plants and trees need trace amounts of chlorine for growth, but chlorine is toxic in large amounts. If a plant gets too much chlorine, the leaves may develop spots or drop off. Heating water or letting it stand overnight can eliminate chlorine from tap water.
About this Author
D.M. Cameron was a journalist and editor for wire services, newspapers and magazines for more than 20 years. In addition to editing and ghost-writing non-fiction books, Cameron now writes for several websites and trade journals. Cameron's degrees include a Bachelor of Arts in journalism from Penn State.