Violet Silverleaf Sage. Leucophyllum candidum, Snapdragon or Figwort Family: ( Scrophulariaceae ), Violet Silverleaf. Also Called: Silverleaf Ranger, Cenizo, Big Bend Silverleaf, Violet Texas Ranger, Brewster County Barometerbush, Leucophyllum violaceum. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. A low evergreen shrub, or herbaceous perennial shrub. This plant is attractive to bees, butterflies and/or birds. Drought-tolerant; suitable for xeriscaping. Does not do well if overwatered. With its intense violet flowers that appear in the summer through fall in response to humidity or rainfall, it is an eye-catching plant. There are hybrids of this plant available. Called the 'Cloud Series'. Quick Notes: Height: 5 - 8 feet tall, spread 4 to 6 feet. Flowers: Five-lobed tubular 1/2 - 1 inch flowers covering the plants with white, pink, lavender, purple, or blue blossoms. Blooming Time: Late February - March. Again during the monsoon rains in Arizona. Leaves: Leaves have a silver pubescence and an attractive felty touch. The leaves are wavy, oval, and 1/2 - 1 inch alternating leaves. Found: The USDA claims Leucophyllum candidum is native to the USA (TX). It is native to only Brewster County in Texas. It is also native to Mexico in Chihuahua, Coahuila, Nuevo Leon, & Tamaulipas. Elevation: Native from 2,200 - 4,900 feet. Hardiness: USDA Zone 8a: to -12.2 �C (10 �F) USDA Zone 8b: to -9.4 �C (15 �F) USDA Zone 9a: to -6.6 �C (20 �F) USDA Zone 9b: to -3.8 �C (25 �F) USDA Zone 10a: to -1.1 �C (30 �F) USDA Zone 10b: to 1.7 �C (35 �F) USDA Zone 11: above 4.5 �C (40 �F) Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline) Sun Exposure: Full Sun Partial Shade Habitat: Alkaline, well-drained/light soils. An ideal landscape plant in Arizona. Miscellaneous: Flowering Photos Taken March 22, 2006. Phoenix, Arizona. Water slightly in Phoenix. Does best without fertilizer.