Scientific: Leucophyllum langmaniae
Common: Braue river sage, Rio Bravo sage
Family: Scrophulariaceae
Origin: Chihuahuan desert

Hardiness zones:
Sunset 7-24
USDA 7-11

Landscape Use: Accent, informal hedge, xeriscape landscape designs

Form & Character: Clean, evergreen shrub, informal

Growth Habit: Moderate to 5' with equal spread

Foliage/texture: Small rounded, greenish leaves to 1" long, elliptic, medium fine texture

Flowers & fruits: Many axillary lavender flowers on new wood, fruit inconspicuous

Seasonal color: Flowers freely during the warm season from mid spring through fall depending on cultivar. 

Temperature: Tolerant, cold hardy to 10oF.

Light: Full sun required. Plants become leggy if shaded.

Soil: Like other Texas sages, prefers some alkaline soil, but most importantly, soils MUST BE well drained.

Watering: No water during winter, supplemental water during summer particularly if monsoon rains fail will promote blooming.

Pruning: Lightly prune to shape, best done once a year in early spring.

Propagation: Seed and cutting (softwood or semi-hardwood).

Disease and pests: Texas root rot

Additional comments: This is a great medium sized shrub for xeric landscapes. In my opinion, it is better that L. frutescens var. green cloud. Cultivars include 'Rio BravoTM' (flowers best in response to summer monsoon rains) and 'Lynn's' Legacy' (flowers all summer and fall). 'Lynn's Legacy' is a more dense, rounded, slow growing, green leaved, oft lavender blooming (warm season) cultivar that is named after Texas horticulturist Lynn Lowery (deceased in 1997).  Rabbits love to munch on succulent new foliar tissues of most Leucophyllums.