The Peruvian Old Man Cactus (Espostoa lanata) is a striking columnar cactus that brings both texture and charm to Tucson's desert landscapes. Covered in a dense layer of white, woolly hairs, this cactus not only adds visual interest but also provides protection from the sun and cold. Slow-growing and highly drought-tolerant, it thrives in full sun and well-drained soil, making it ideal for xeriscaping or container gardening. Over time, it can produce nocturnal flowers and small, edible fruits, adding to its allure. Whether used as a focal point or part of a cactus collection, the Peruvian Old Man Cactus offers timeless beauty and resilience for Southwest gardens.