Bluebeard shrub, butterfly bush, oleander, potentilla and rock rose are some flowering bushes that require full sun. These low-maintenance perennial bushes also prefer well-drained soil.
Bluebeard shrubs attract birds and butterflies in late summer with blue blossoms, which also serve as attractive cut flowers. This bush grows to 4 feet and is heat- and drought-resistant in zones five through nine.
Butterfly bush produces clusters of blossoms that resemble lilac blooms through summer into autumn in a variety of colors, including pink, white, purple and blue. The plant grows 10 feet and taller, providing fragrant blooms in zones five through nine.
Oleander is a rugged plant that grows in otherwise difficult sunny locations, providing blooms in pink, red, yellow, purple and white. The poisonous plant is not pet- or child-friendly, but it provides easy summer color in subtropical climates, such as zones 10 and 11.
Potentilla is another easy-growing shrub. The compact 3-foot shrub provides blooms in late spring in white and a variety of warm colors. The blooms resemble single roses, and the divided foliage provides texture to gardens in zones three through seven.
Rock roses are drought-resistant and provide single blossoms in pink, purple and white all summer. The plants grow to 5 feet tall in zones eight through 10.