Oenothera suffrutescens --Scarlet Beeblossom--

Previously Gaura coccinea. Really pretty summer bloomer looks a lot like a gaura, with showy red-pink blooms on tall stalks. Blossoms start pink, and darken to scarlet during the course of the day. Up to 2 feet tall, full sun, drought tolerant (likes dry soil), spreads slowly with rhizomes. Attracts moths.