Coleus
Coleus is planted for its foliage. comes in many sizes and colors. It can thrive in full sun, to partial shade, to full shade, depending on which you choose.
Very heat tolerant
Most new varieties grow in full sun to part-shade, but read the tag to be sure.
Lots of colors and combinations to choose from
Performs well in pots or in the ground
Interesting light, dark and multi-color foliage
Can be upright, or semi-trailing.
Upright varieties can be quite large, up to 3 feet high and wide. Choose wisely
Plants produce flowers, but many gardeners remove them to promote growth
Can be cut back a little or a lot to manage its size for the space or container