Hibiscus flowers are high in vitamin C making them great for supporting the immune system. A health immune system will help to fight off disease and sickness. The flowers are also a natural diuretic and naturally sweet, making them the perfect addition of other teas for a sweet and floral boost. Region:Nile River, Sudan Steeping Guide: Amount: 3g of tea per cup. Temperature: 100°c /212°F Steep Time: 2-3 minutes, this tea can be re-steeped 5 times. For iced tea brew the same amount of tea in half the amount of water. Then fill your cup with ice, pour the tea and enjoy!