Why it's a standout: At the sight of this native's dinner-plate-size flowers, you'll think you've landed in the tropics. The Disco Belle series features flowers in red, pink, or white, while purple-leaved hybrids, such as 'Kopper King,' offer the extra perk of colorful foliage. This shrub dies back in winter but bulks up each summer, growing up to 8 feet tall.
What it needs: Full sun; average to moist soil
Zones: 4 to 9