Soapy water is safe for most outdoor plants, but avoid using it on potted plants. Also, don't use water containing laundry soap because the soap content is too high.
About this Author
Anna Aronson began working as a journalist in 2000 and spent six years at suburban Chicago newspapers before pursuing freelance work. She enjoys writing about health care topics, in particular obstetrics, pediatrics and nutrition. She received a Bachelor of Arts in journalism from Eastern Illinois University and is now studying for a Master of Science in medicine degree to become a physician's assistant.