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Rough Blazing Star
Liatris aspera

a.k.a. Button Blazing Star

Native, erect, herbaceous perennial that is 1-4' tall. Its showy flowers attract songbirds, hummingbirds, and butterflies. This species is easily grown in average to dry to music, well-drained soils like a sandy based or well-draining rain garden because it will tolerate poor soils and summer heat. It is also ideal for perennial borders, native plant gardens, naturalized areas and restorations of prairies and savannas. An excellent butterfly plant. it may need staking if it is not supported by other tall, upright plants.

USDA symbol: LIAS

General Information

Plant TypeForb
Height3 to 4 feet
Light ExposurePart Sun, Sun
Soil MoistureDry
Bloom ColorPurple
Rough Blazing Star (Rough Blazing Star<div><em class="small">Liatris aspera</em></div>)
Photo credit: United States Department of Agriculture (Click to enlarge)


Flooding / Inundation ToleranceHigh
General Resilience7
Salt ToleranceMedium
Stress ToleranceGeneral Disturbance

Pollinator Value: Very High

Bloom MonthsAugust to September
Pollinator BenefitInsect Pollinated, Provides Nectar, Stem Nesting, Supports Generalists

Project Planning

Project TypeErosion Control, Rain Garden, Restoration, Shoreline Buffer, Upland Buffer
Coefficient of Conservatism7
Herbivore SensitivityHigh
Rate of SpreadSlow
Soil StabilizationShallow
Vegetative ReproductionClonal


CountyAitkin, Anoka, Becker, Benton, Big Stone, Blue Earth, Brown, Cass, Chippewa, Chisago, Clay, Clearwater, Cottonwood, Crow Wing, Dakota, Dodge, Douglas, Faribault, Fillmore, Goodhue, Grant, Hennepin, Houston, Hubbard, Jackson, Kandiyohi, Kittson, Lac qui, Le Sueur, Lincoln, Lyon, Mahnomen, Marshall, Martin, McLeod, Meeker, Morrison, Mower, Murray, Nobles, Norman, Olmsted, Otter Tail, Pennington, Pine, Pipestone, Polk, Pope, Ramsey, Redwood, Renville, Rice, Rock, Roseau, Sherburne, Sibley, Stearns, Stevens, Swift, Todd, Traverse, Wabasha, Wadena, Washington, Watonwan, Wilkin, Winona, Wright, Yellow Medicine
EcoregionDriftless Area, Lake Agassiz Plain, North Central Hardwood Forests, Northern Glaciated Plains, Northern Lakes and Forests, Northern Minnesota Wetlands, Western Cornbelt Plains
Approximate Eco ProvinceEastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland, Tallgrass Aspen Parklands