The delicate yellow Hibiscus "Pua Aloalo" is Hawai'i's state flower. Tropical hibiscus and hardy perennial hibiscus grow throughout the islands.There may now be over 10,000 named varieties of tropical hibiscus, with 6 distinct forms of flowers (singles, doubles, crested, etc.) in numerous colors and combinations of colors.Hawai'i-rose / Hibiscus rosa-sinensis