Stephania erecta is grown for its round caudex and delicate vines. It has a clear growth-and-rest rhythm, so care should change by season.
Use a well-draining medium, keep the caudex from staying wet, and water more carefully when the plant is dormant or not actively growing. During active growth, provide bright indirect light and stable airflow.
Patience is important. Wait for new growth before assuming the plant has failed.