Thanks, Elaine!
I just poured 3% hydrogen peroxide all over the wound and into the soil. The wounds have healed up and the plant is looking so much better now. It was a last effort attempt to save it. I love the blooms on it and couldn't bear to destroy it without trying everything I knew to try to save it. It seems to have worked. It is honestly my best blooming brug.
Is Charles Grimaldi a large blooming brug? What color is it?