Blossoming Questions

I HAVE A BLOOMSTRUCK REBLOOMING HYDRANGEA AND IT SEEMS AS THOUGH THE BUDS HAVE DIED ON LAST YEAR’S GROWTH, BUT I DO HAVE NEW GROWTH COMING IN. SHOULD I BE WORRIED?

DO YOU NEED TO DEADHEAD A HYDRANGEA?

HOW DO YOU PRUNE VANILLA STRAWBERRY HYDRANGEA AT THE END OF WINTER?

MY TIGER EYES SUMAC STARTED TO SHOW NEW GROWTH BUT HAS NOW DIED OFF. WHAT SHOULD I DO?