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Prairie Onion

Allium stellatum

Prairie Onion is a hardy and drought-resistant native bulb that thrives in tough conditions, making it ideal for xeriscaping and naturalized areas. It grows up to 1 to 2 feet tall and produces attractive globes of star-shaped, pink to purple flowers in late summer. These blooms not only add visual interest but also attract pollinators like bees and butterflies. The narrow, green leaves are mildly onion-scented when crushed. Prairie Onion prefers full sun and well-drained, rocky or sandy soil.

Details

Height12” - 24”
Spread6"
Bloom SeasonJuly – August
Soil Types
loamLoam
sandSand
Soil Moisture
dryDry
mediumMedium
Sun Exposure
partSunPart Sun
fullSunFull Sun

Range Map

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Ecological Benefits

Maintenance Tips

  • Drought-tolerant once established; water sparingly, only during prolonged dry periods.
  • Deadhead flowers after blooming to maintain appearance and prevent self-seeding.
  • Thrives in well-drained, sandy or rocky soils; avoid wet, poorly-drained soils.
  • Divide clumps in the spring every 3-4 years to promote healthy growth and increase plantings.
  • Requires minimal care once established. Monitor for pests but generally pest-resistant.

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