Allium hollandicum, commonly known as Persian Onion, is a deciduous perennial bulb native to Iran, specifically to rocky slopes and fields. It typically forms clumps up to 10 cm (3.9 in) in diameter, with spherical umbels of star-shaped flowers that are purple to reddish-purple. These showy blooms appear in late spring to early summer and are highly attractive to pollinators. The plant reaches a height of 60-90 cm (24-36 inches) and adds vertical interest to garden beds.

Persian Onion is valued for its ornamental flowers and is often used in borders, rock gardens, and as a cut flower due to its long vase life. It is easy to grow and maintain, making it a favorite among gardeners. It thrives in full sun to part shade and requires well-drained soil, preferably rich in organic matter. While it prefers moist conditions, it is somewhat drought-tolerant once established. Overwatering or poorly drained soils can lead to bulb rot. It is generally pest-free but can be affected by onion fly and thrips. Persian Onion is not considered invasive and does not have aggressive roots, making it a safe choice for most garden settings.CC BY-SA 4.0