Penstemon mexicali 'Carillo Purple' is an eye-catching perennial with an upright habit that forms a dense clump. It thrives in hardiness zones 4 to 9 and prefers a temperate climate. This stunning plant is celebrated for its vibrant purple tubular flowers that attract hummingbirds and butterflies, making it a delightful addition to garden beds or borders. Standing approximately 12 to 18 inches tall, 'Carillo Purple' adapts well to various soil types and is drought tolerant once established. Moreover, this plant exhibits notable deer resistance, thus maintaining its lush appearance in gardens frequently visited by wildlife.