Allium stellatum, commonly known as Cliff Onion, is a native perennial wildflower found in prairies, open woodlands, and dry, sandy soils throughout Illinois. It thrives in well-drained soils and prefers full sun to partial shade.
This plant features slender, grass-like leaves and produces spherical clusters of star-shaped, pink to purple flowers that bloom in mid to late summer. The flowers are highly attractive to pollinators, particularly bees and butterflies. The plant typically reaches a height of 12 to 18 inches and has an upright, graceful form.
For Illinois native plant enthusiasts, Allium stellatum is an excellent addition to wildflower gardens, prairie restorations, and naturalized landscapes. It provides ecological benefits by attracting pollinators and adds seasonal interest with its vibrant, starry flower clusters. Additionally, the plant's mild onion scent can be released when the leaves are crushed.
Allium stellatum, commonly known as Cliff Onion, is a native perennial wildflower found in prairies, open woodlands, and dry, sandy soils throughout Illinois. It thrives in well-drained soils and prefers full sun to partial shade.
This plant features slender, grass-like leaves and produces spherical clusters of star-shaped, pink to purple flowers that bloom in mid to late summer. The flowers are highly attractive to pollinators, particularly bees and butterflies. The plant typically reaches a height of 12 to 18 inches and has an upright, graceful form.
For Illinois native plant enthusiasts, Allium stellatum is an excellent addition to wildflower gardens, prairie restorations, and naturalized landscapes. It provides ecological benefits by attracting pollinators and adds seasonal interest with its vibrant, starry flower clusters. Additionally, the plant's mild onion scent can be released when the leaves are crushed.
Bloom: late summer
Habitats: hill prairies; limestone glades; rocky limestone bluffs and cliffs along rivers
Lifespan: perennial
Moisture: dry
Plant type (height): forb (1 to 1.5 feet)
Requirements: full sun
Soil: rocky, rather limey, and well-drained
