Lupinus albifrons var. collinus, commonly known as Silver Lupine or Foothill Lupine, is a perennial shrub native to California’s diverse ecosystems, including chaparral, coastal sage scrub, woodlands, and grasslands. It typically grows at a moderate rate to a height and width of 1.5-3 feet (0.46-0.9 meters). This species is characterized by its silvery-green foliage and spires of blue or white flowers that are quite showy and bloom in the spring. The flowers are attractive to pollinators such as bees and butterflies. The plant’s appearance is further enhanced by its palmate leaves, which add a fine-textured element to garden settings.

Silver Lupine is valued for its drought tolerance and ability to thrive in poor soils, making it an excellent choice for xeriscaping and native plant gardens. It is also used for habitat restoration projects. In cultivation, it requires minimal maintenance once established, and it is best suited to full sun or part shade conditions. It prefers medium or fast-draining soils, including clay, loam, or sandy types, and has low water requirements. While generally disease-free, it can be susceptible to root rot if overwatered. Gardeners should note that Lupinus species can be toxic to livestock and pets if ingested.CC BY-SA 4.0