the white stuff could be "white fly". " @1 l9 j4 D9 {4 ^' b! ^6 UI 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.6 V7 W; F3 @% J( j8 w8 w# h( r
Hibiscus is a typical plant, show helps a lot.