the white stuff could be "white fly". 7 @- ^9 }% }% A2 K$ N7 s" [. AI had the same problem before. It because your plant is too wet. I showed the leaves twice a day for a whole week, then the white filies were all gone. , E. d0 `9 t" Q7 v, f4 k$ zHibiscus is a typical plant, show helps a lot.