Salvia carduacea, commonly known as Thistle Sage, is an annual herb native to the chaparral and coastal sage scrub habitats of California and Baja California, typically found at elevations up to 4593 feet. It exhibits a variable growth habit, ranging from 6 inches to 3 feet in height, with woolly white basal leaves that have a thistle-like appearance. The plant is notable for its vibrant lavender flowers with bright orange anthers, which bloom in whorls from late spring to early summer, offering a showy display. The foliage emits a citronella-like scent when crushed.

Thistle Sage is valued for its drought tolerance and ability to adapt to various environments, making it a suitable choice for xeriscaping and native plant gardens. It is also appreciated for its attractive flowers, which can add color to rock gardens and dry slopes. In cultivation, it requires well-drained soils, minimal water once established, and thrives in full sun to part shade. While it is generally low-maintenance, it can reseed prolifically under favorable conditions.CC BY-SA 4.0