Marica,
My Triple Twilight does the same thing w at least 2 or 3 buds. Not one opened yet.
I am going to check w my friends that grow them and see what response I get, hopefully to help for in the future.
Rick
"Many times a day I realize how much my own outer and inner life is built upon the labors of my fellow men, both living and dead, and how earnestly I must exert myself in order to give in return as much as I received"