If you enjoy low-maintenance gardening with delicious rewards, rhubarb and asparagus are great choices. Once established, these hardy perennials return year after year with minimal care. I gathered some helpful tips from ISU Extension’s AnswerLine, which has been answering home and family questions for over 40 years. Visit www.extension.iastate.edu/humansciences/answerline or call 1-800-262-3804 for assistance.