One-leaf Onion (Allium Unifolium) is a perennial bulb in the Amaryllidaceae family with easy care difficulty. It requires low watering and full sun or partial shade light in USDA hardiness zones 5-9. This plant is toxic to cats and dogs — keep it out of reach of pets. It can be grown indoors.

Allium unifolium is a bulbous perennial native to the coastal mountain ranges of California and Oregon, admired for its umbrella-shaped clusters of pink to lilac flowers.