My neighbors on both sides loved Hibiscus. I discouraged them. As lovely as they are — they attract white flies. White flies will them create a white webby material. I had it on my flowers, my cactus and my pine tree. In Hawaii it is not a problem. It rains there everyday and there are so many birds to eat the flies. I had to cut back the branches on my side of the fence and give a hard spray water wash of all the infested areas.
My friend from Hawaii said to wear them at night you have to pick them and refrigerate them the day before. Take them out the next afternoon and they will open up.