Mexican bush sage is a subshrub from Mexico and Central America that saves its display for the end of the season, which makes it far more valuable than plants that peak in June and spend the rest of summer looking tired. The flower stalks carry persistent velvety purple calyces with short-lived white corollas that do not open until late summer, creating a bicolor effect that butterflies and hummingbirds pursue with real dedication. The species epithet leucantha means white-flowered, acknowledging those corollas even if it is the rich purple calyx that gives the plant its character.

It prefers full sun, does best in rich, evenly moist, well-drained soil, and tolerates afternoon shade where summer heat is intense. Drought resistance improves considerably once the plant is established. Propagation by division, seed, or stem cuttings is all straightforward. Hardiness is limited to the lower piedmont and coastal plain; extreme winters may kill plants even within that range, so it is wise to take a few stem cuttings in autumn as backup. Deer and rabbits leave it alone, which simplifies life considerably in gardens where those animals are a persistent problem.