Hibiscus tea from H. syriacus or H. moscheutos?
I understand that H. sabdariffa is the hibiscus most commonly used for tea. I have Rose of Sharon (Hibiscus syriacus) and rose mallow (H. moscheutos) plants.
Have any of you made tea from the flowers of either of these hibiscuses? Do you know if they have the same medicinal properties as sabdariffa? If so, at what stage should the flowers be picked? Do you use whole flowers or calyxes only or...? How do you preserve them for tea?
Any advice would be greatly appreciated.