Perennial Herb: Evergreen. Tolerates heat, drought, fire and deer. A Texas & New Mexico native. Forms grass-like clumps of arching leaves that are edged with fibrous threads. Good specimen or container plant. Summer bloomer with bell-shaped, yellow flowers on tall 5-9 foot flower spikes. Attracts bees, butterflies and hummingbirds. Height: 3-4 feet. Width: 1-2 feet. Exposure: sun/part shade. Water: dry. USDA Z5-10.