Planting Hibiscus plants outside in containers rather than in the ground

I WAS READING ON SOME SITE ..NOT YOURS,ASKING ABOUT GROWING &PLANTING HIBISCUS, AND IT STATED IN FLORIDA IT WAS BEST TO GROW THEM IN CONTAINERS OUTSIDE RATHER THAN IN THE GROUND..ANY TRUTH TO THAT ??? I WOULD RATHER DO THAT B'CAUSE I AM PLAGUED WITH FIRE ANTS..WHICH MAINTANANCE CAN'T GET RID OF, SO THOUGHT I'D TRY CONTAINER GARDENING, BUT NEVER HEARD OF PUTTING HIBISCUS IN A POT. I LIVE IN ZIP CODE 33773..LARGO FL ..IN THE TAMPA BAY AREA. I BELIEVE IT'S ZONE 9..THANKS