Gaura (Gaura lindheimeri) - Herbaceous, clump-forming perennial that blooms white & pink flowers in the late spring & summer. 
 
Growth: Can grow 5 feet tall.
Light: Prefers full sun.
Soil: Best grown in sandy, loamy, well-draining soil.
Hardiness: Heat, humidity, & drought tolerant.
Maintenance: Low maintenance. Deadhead blossoms to encourage more blooms.
Benefits: Attracts pollinators.