Chilopsis linearis (Cav.) Sweet Desert willow, Flowering willow, Willow-leaved catalpa, Trumpet flower Bignoniaceae (Trumpet-Creeper Family) USDA Symbol: CHLI2 USDA Native Status: Native to U.S. Desert-willow is a 15-40 ft., slender-twigged, small tree or large shrub, often with leaning, twisting trunk and open, spreading crown. Leaves are deciduous, willow-like, light green,
Tough Strokes' Aster can withstand hot, humid weather. More plants for humid conditions: http://www.bhg.com/gardening/gardening-by-region/south/top-native-plants-for-southern-gardens/?socsrc=bhgpin062112#page=7
Texas Sage - This is a wonderful plant that not only adds a lot of purple to the landscape but also a neutral tone that goes well with a lot of other desert, southwest, and native plants. Texas sage can get quite large so it works well as a background, border, boundary, and specimen.
Eastern Purple Coneflower (Echinacea purpurea) – Drought tolerant native that is a butterfly magnet. Profuse blooms spring through summer. Elongated stems with soft lavender petals attached to an iridescent cone. It prefers full sun to partial shade in well draining fertile soils. 2-5 feet tall. Perfect for cut flowers, lasting about a week. NATIVE. Outstanding performer in the garden.
Absolutely one of the most beautiful ornamental grasses around. A North American native and more importantly a Texas Native Plant! Blue/green needle like foliage, giving it a stiff upright growth habit. Puts on a real show in fall with purple cloud-like flowers. Tolerant to dry and wet conditions.