Rose of Sharon or Common Hibiscus is a great edible landscaping plant whose leaves, flowers and bark are all edible. High in Vitamin C and antioxidants, it's tasty and nutritious leaves can be eaten spring through fall. Vigorous and easy to grow deciduous shrub it can reach10 feet tall and tolerates poor soil and drought. Beautiful all year round with a long blooming season of blue, white pink and red colored flowers that resemble hollyhocks. Native to India, China and eastern Asia. Hardy to zones 5-9.