Blossoming Questions

I purchased a JetStream Hydrangea. I want to set up a water irrigation system. How often should it be watered, how many times a week and for how long? It is planted in central South Carolina.
Should Easy Elegance roses have a trellis to climb?
How can I get my hydrangea plant to grow larger? Every year the plant died back and new growth are coming from the base when summer arrives. All the branches left from previous are all dead and did not have any new growth, and pruning did not seems to help.
I NEEDED TO REMOVE TWO LARGE PURPLE-LEAVED BUSHES FROM ALONG THE WALL OF THE SOUTHERN FACING SIDE OF OUR HOME. THEY WERE PLANTED ON OPPOSITE SIDES OF A LARGE SILVER-LEAVED WHITE POM POM BUSH. THE REMOVED DYING BUSHES WERE APPROXIMATELY 10 ‘ TALL AND 15’ WIDE. I’D LIKE TO REPLACE THEM WITH SOME TYPE OF SHORT EVERGREEN PAIRED WITH SPRING/SUMMER LONG BLOOMERS. I HAVE IRIS, PEONIES, AND HOSTA PLANTED ALONG THE PERIMETER OF THE GARDEN. ROSES DO NOT DO WELL FOR ME. THANKS FOR ANY HELP!!
I PLANTED MY HYDRANGEA AND HAD SOME FROST. THE BUDS WERE STARTING AND ARE NOW DROOPING DOWN AND SOME LEAVES ARE WILTED. SHOULD THEY BE CUT BACK?
HOW DO I GET A ROSE TO ROOT ITSELF TO ANOTHER PLANT?
CAN I PRUNE MY ROSES AT ANY TIME? THEY ARE OVER 7 FEET (TALL).
WHAT FLOWERS ARE GOOD FOR ZONE 3 and 4?
I JUST RECEIVED AN ENDLESS SUMMER HYDRANGEA FOR MOTHER’S DAY. SHOULD WE PLANT IT RIGHT AWAY OR CAN WE PUT IT IN A POT? IF WE PUT IT IN A POT WHEN CAN WE PUT IT IN THE GROUND? ALSO, IN IOWA, HOW MUCH SHADE IS PARTIAL SHADE?
HOW DO I JOIN THE MESSENGER PLAN THAT MESSAGES ME WHEN TO DO WHAT WITH MY PLANTS?
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