Sacred Datura (Datura wrightii) is an imposing annual wildflower native to the arid regions of the southwestern United States and northern Mexico, with a naturalized range as far north as British Columbia. This iconic and storied plant is well-known for its large, trumpet-shaped, fragrant white flowers that bloom from evening into the early morning, making it a vital nectar source for nighttime pollinators such as moths and bats. The blooms, which can reach up to 8 inches in diameter, exude an ethereal beauty, glowing under moonlight and adding dramatic appeal to desert landscapes. Despite its ornamental value, it is important to note that all parts of the plant are extremely toxic, a trait that serves as a defense mechanism against herbivory, and should be kept away from children and other vulnerable persons, pets, and livestock.
Sacred Datura thrives in well-drained, sandy, or gravelly soils, often found in desert washes, roadsides, and open plains. It is a hardy plant adapted to hot, dry climates, and its deep roots allow it to withstand periods of drought. Ecologically, Sacred Datura is significant as a host plant for hawk moths, including the Five-Spotted Hawk Moth (Manduca quinquemaculata), whose caterpillars rely on the plant for food. The flowers are also visited by sphinx moths, bats, and other night-pollinating insects, creating a fascinating nocturnal ecosystem around the plant. Early morning foragers include sweat bees and digger bees (both of which become noticeably intoxicated by the nectar). Blooming from late spring through fall, Sacred Datura provides a steady nectar source in the desert landscape during its growing season.
Sacred Datura is easy to grow from seed with some preparation. The seeds have a tough outer coat and benefit from soaking for 24 hours pre-planting to aid germination. They are best sown in spring after the danger of frost has passed, and they will thrive in full sun with minimal water once established. Ideal for xeriscaping and wildlife gardens, Sacred Datura is an intriguing addition to desert and drought-tolerant landscapes. This plant can be weedy and capable of naturalizing disturbed areas, and should never be introduced to natural areas outside of its native range.
Sacred Datura - Datura wrightii
Scientific Name Datura wrightii Habitat Prairie, chapparal USDA Zone 8 - 11 Native Region Southwestern U.S., Northern Mexico Phenology Annual Height 24 - 48" Light Requirement Full Sun Water Requirement Low; drought-tolerant Soil Type Well-Drained Sandy or Gravelly Soils Germination Time 24-hr soak, 7-14 days Difficulty (1 - 5) ⸙⸙ Planting Season Spring Bloom Season Late Spring - Summer Pollinators Sphpinx Moths, Moths, Bats, Bees