Angelonia angustifolia (Narrowleaf Angelonia). Sunset: All zones as annual, 25-27 as perennial.
Full sun to light shade. Perennial 12 to 18 inches tall. Glabrous stem and leaves; narrow leaves are apple-scented with fine teeth. Makes good cut flowers. Regular water. Origin: Mexico and West Indies.

Dietes bicolor (Fortnight lily). Sunset: 8,9,11-24; USDA: 8b-11. Light shade in Phoenix. Regular water. Hardy to 15° F. Evergreen perennial to 4' tall. Origin: Eastern Africa, Malawi,Tanzania.

Dietes iridioides (African iris). Sunset: 8,9,11-24; USDA: 8b-11. Light shade in Phoenix. Regular water. Hardy to 15° F. Evergreen perennial to 4' tall. Origin: Eastern Africa, Malawi,Tanzania

Melampodium leucanthum (Blackfoot daisy). Sunset: 1-3,10-13; USDA: 7-11. Full sun, regular water. Hardy to 0° F.  Short lived perennial, slowly form a mound 1.5'.  White flowers, yellow center. Origin: Western USA 2000 to 5000' elevation.

Oenothera berlandieri (Mexican primrose). Sunset: All zones; USDA: 7-10 Hardy to 0°F. Full sun. Little to no water, drought tolerant, needs good drainage. Perennial with pink flowers, up to 15" tall. Origin: Southeastern USA to Mexico.

Zephyranthes candida (Fairy lily/White rain lily). Sunset: 1-9,12-24; USDA: 8-12. Full sun to light shade. Regular water. Bulb plant, white flowers grows to 8" tall. Origin: Argentina.

Zephyranthes grandiflora. Sunset: 1-9,12-24; USDA: 9-10 Full sun to light shade. Regular water. Bulb plant, pink flower to 12" tall. Origin: Southern Mexico to Guatemala