the white stuff could be "white fly". 3 q- ?; q+ j3 k1 F9 _I 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. 5 X/ [$ K7 N8 g. M6 e1 OHibiscus is a typical plant, show helps a lot.