Gaura
Gaura is a lovely, airy plant with either pink or white flowers that vaguely resemble butterflies. Foliage is usually green, but some newer varieties have reddish foliage. Plant size varies from about two feet to four feet. Gaura can self-sow vigorously under the right conditions, but it is so long blooming (late spring to frost) that much can be forgiven. It is a long lived plant and very drought tolerant, but provide some water for best appearance.