The above picture is that of a hibiscus. This one is a red color. We have the orange one and earlier had the white and pink too.
Hibiscus is known to lower blood pressure, increase urination, protect liver and heart, calm the nervous system, cools the body, removes thirst, prevents colds, lowers weight and has a great taste. However, it should be avoided by people who have low blood pressure, are pregnant and it also induces hallucination in some. Hibiscus should not be given to animals like dogs. info - https://medium.com/@AyurvedaPalms/amazing-health-benefits-of-hibiscus-tea-33d5ea53c2d If you live near Rotterdam, you can drop in for a free hibiscus tea at Ayurveda Palms
We use hibiscus leaves while boiling coconut oil to make hair oil. We also add other herbs. Hibiscus leaves are known to prevent hair damage. The leaves are also crushed and the resulting liquid can be used as a natural organic shampoo. Nature has a lot to offer us but we are not aware of many of the remedies.
image source - sayee