Make Hibiscus Tea and Hibiscus Sherbet
Most hibiscus flowers are edible, but not all. If you live where the variety known as Roselle (Hibiscus sabdariffa) grows, pick it freely, and make tea from the fresh or dried flowers. Give other hibiscus varieties a pass, unless you have an authoritative source affirming that they're safe to consume. In any case, you'll probably want to pick up the dried flowers at a health food store. They last 6 months if stored in an airtight container, away from light.