Many thanks Ken.
He didn't told me what fungus is, I asked him but the last reply was to spray every plant in the garden with a whatever fungicide I can find, he said it's a long story and for now he didn't have the time to explain. But I don't know if he was thinking to spring sickness too.
This plant in particular seems not to be able to grow out of it. The others are better now (I had four suffering) but this is having real hard time (to my eyes).
