Canna Lily
Size: 3 to 6 feet tall depending on variety
Lighting: Full to part sun
Seasonal interest: Blooms summer to frost
Winter: Dies back to the ground (herbaceous)
These plants are very showy even when not blooming. There are so many varieties to choose from. Some have deep burgundy leaves, while others may have bright green and yellow stripes. They do spread, so be prepared to keep them in check or grow them in a large pot like me.