Azalea. There are a couple of varieties as well as colors. I hate all the lurid and strange colors in Azaleas. If I cannot name the color, I do not want it. I have a pink, a white and this very strong red. It struggles in my yard, so it really irks me when John cuts branches for bouquets. However, they are striking in a container.
Other varieties are much leggier and larger. Good in Part shade and in acid soils, they can be loosely clipped to shape the plant, or even Bonsai-ed.