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Prairie Onion
Allium stellatum

A native perennial herb that grows to 1-2'. Prairie onion can be used for the edges of rainwater gardens and upland buffers. Plant in groups for more visibility. Prairie wild onion does not compete well with aggressive native grasses. Even though this plant can be used for food, please do not pick or dig up this plant from natural conditions.

USDA symbol: ALST

General Information

Plant TypeForb
Height2 feet
Light ExposureSun, Part Sun
Soil MoistureDry
Bloom ColorPink
Prairie Onion (Prairie Onion<div><em class="small">Allium stellatum</em></div>)
Photo credit: Minnesota Native Landscapes (Click to enlarge)


Flooding / Inundation ToleranceModerate
General Resilience6
Salt ToleranceLow
Stress ToleranceGeneral Disturbance

Pollinator Value: High

Bloom MonthsJuly to September
Pollinator BenefitInsect Pollinated, Provides Nectar, Supports Generalists

Project Planning

Project TypeBoulevard, Rain Garden, Sandy or Engineered Soils, Upland Buffer
Coefficient of Conservatism8
Herbivore SensitivityLow
Rate of SpreadSlow
Soil StabilizationShallow
Vegetative ReproductionClonal


CountyBecker, Beltrami, Benton, Big Stone, Carlton, Cass, Chippewa, Clay, Cook, Cottonwood, Crow Wing, Dakota, Douglas, Grant, Hennepin, Hubbard, Isanti, Itasca, Jackson, Kandiyohi, Kittson, Koochiching, Lac qui Parle, Lake, Lake of the Woods, Le Sueur, Lincoln, Lyon, Mahnomen, Marshall, Martin, McLeod, Meeker, Morrison, Mower, Murray, Nobles, Norman, Olmsted, Otter Tail, Pennington, Pipestone, Polk, Pope, Ramsey, Red Lake, Redwood, Renville, Rock, Roseau, Sherburne, Sibley, St. Louis, Stearns, Stevens, Swift, Todd, Traverse, Wadena, Washington, Watonwan, Wilkin, Wright, Yellow Medicine