Learn to care for and grow Creeping Charlie (Pilea nummulariifolia). Pilea nummulariifolia (also known as creeping charlie, Bathroom bubbles and Creeping Pilea) is a plant in the family Urticaceae. It is hardy in zones 10a-10b. It is a high maintenance plant. It is a fast growing plant. It requires a medium amount of water. It is pet-friendly. It is nottoxic. It is perennial. The sun requirement is part sun and part shade. The soil requirement is sand and loam. The soil PH needed is 6.1-7.8. It can be propagated by division and stem cutting. Common diseases include leaf spot and root rot.