The Peruvian daffodil (Hymenocallis) is hardy in USDA zones 8 to 11. In colder climates, such as zones 7 and below, the bulbs should be dug up in the fall and stored indoors until spring planting. They thrive in moist but well drained soil and prefer full sun to partial shade. Proper care, including regular watering and fertilization, is essential for healthy growth and blooming.