Blossoming Questions

My Blushing Bride has so many small flower heads. It may be preventing it from growing large flowers. Should I prune some of the small heads?
Q
MY NEW REDBUD AND CRIMSON PEAK JAPANESE MAPLE TREES WERE AFFECTED BY FROST TWO WEEKS AGO. ALL THE NEW LEAVES AND BRANCHES WHERE DAMAGED. WHAT SHOULD I DO? WILL BOTH TREES RECOVER? SHOULD I FERTILIZE? IF SO, WHAT IS SAFE TO USE??
I BOUGHT AN ENDLESS SUMMER HYDRANGEA LAST YEAR. THIS YEAR I AM ONLY SEEING NEW GROWTH, THERE ARE ZERO BUDS ON THE OLD BRANCHES AND THEY ARE VERY DRY. IS IT OKAY TO PRUNE THESE DOWN TO THE GROUND?
DO YOU HAVE ANY FERTILIZING TIPS FOR MARMALADE POTENTILLA?
WHAT SLOW RELEASE FERTILIZER WOULD YOU RECOMMEND FOR MY AMBER JUBILEE NINEBARK?
Q
WHAT CAN I DO ABOUT THE LEAVES TURNING BROWN ON MY TIGER EYES SUMAC?
CAN HYDRANGEAS SURVIVE IN SANDY SOIL?
Q
HOW DO I KNOW IF MY PLANT NEEDS FERTILIZING?
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