It is fine to pot a plant with a small amount of algae on the roots. Ideally, wipe the roots with a damp towel first to remove the majority of the algae. Make certain the potting medium is not soggy at the time of transplant.
About this Author
Lisha Smith writes for several blogs and has freelanced for six years. She has a Bachelor of Arts from UNC-Greensboro in psychology. Smith has self-published several books. Her areas of experience include gardening, cooking, home improvement, pets and mental health.