What Type Of Hibiscus Flower Is This…
One photo is next to an Advil bottle so you can see how large they get
Certified GKH Gardening Expert
Unless you have the tag from where it came from or know who planted it, it may be difficult if not impossible to find the exact cultivar. The only thing that we can pin down is that it is a tropical variety. They are the only type that can flower orange, like this.
Here is an article that will help you with their care: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-container-care.htm