about blue star flowers

color without thinking I bought it just one pot, because I do not know the character. In fact, keeping this flower is easily difficult. It's easy because he's not fussy. Unfortunately, the disease that attacked this flower I do not know at all. Plants only a few days suddenly dry up and eventually die. I really do not know what causes it. I suspect it is likely that the problem is underground or in pots. The flowers and flowers are equally attractive. The flower is shaped like a balloon, so no wonder this flower is called a Balloon Flower or Flower Bell. When his blooming blue blossoms are crowned five star-like strands. Another term is Platycodon.