A hardy perennial native to Texas, Louisiana, and Mexico, Gaura is ideal for warm-weather climates, and 'Crimson Butterflies' tolerates drought, heat, humidity, and even shallow soil, making it ideal for the xeriscapic garden (though it flowers best, of course, when given adequate moisture). Hardy all the way through south Florida, its rich foliage drinks in the sun, turning darker as the heat increases! 'Crimson Butterflies' is one in a series bred by Howard Bentley of Australia. It is an offspring of the renowned 'Siskiyou Pink,' but easily outperforms its famous parent in compact stature, quantity of flowers, and length of bloom. Space plants 12 to 24 inches apart in just about any well-drained garden soil exposed to full sun. Zones 5-10.