No trying to be rude Ksis, BUT can you give the question in English with a little more info, like what type of soil, are these planted in ground /containers or pot etc, how do you water them and have you fed them, is there aphids or other diseases visible.
This info would give a faster reply.
Good luck and kindest regards.
Hi Ksis,Wave petunias need to be dead headed quite often because if you do not, then the plant will not produce many blooms and it will think that the season is over. I planted some last year and I did a lot of research on line to have success with them.