Q.I WINTERED MY DIPLADENIA PLANT AND VINES HAVE GROWN OUT/UP MY SHUTTERS, GLASS HANGERS . I WANT TO PUT OUTSIDE. IF I CUT THESE VI
NES WILL IT KILL THE PLANT OR DETER FROM FLOWERING? I JUST THOUGHT IT FUN TO SEE IF I COULD WINTER THIS CONSTANT BLOOMER…IT IS SO HEALTHY, BUT THESE LITTLE VINES HAVE ENTANGLED EVERYTHING. WHEN OUTSIDE ALL LAST SUMMER IT JUST BLOOMED BEAUTIFUL FLOWERS, NO VINES APPEARED. HOPING YOU WILL SAY I CAN CUT THEM AND NOT KILL IT, AS I WANT TO PUT IT OUTSIDE AGAIN. THANK YOU.

Certified GKH Gardening Expert
You can cut it back before you put it outside.
Here's an article that will help you with your plant:
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htm
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/prune-mandevilla-vines.htm