Grassy, onion-like foliage of Allium stellatum (Prairie Onion)

Allium stellatum (Prairie Onion)

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Allium stellatum, also called prairie onion, is an ornamental onion relative native to the central plains of the US and Canada, and noted for its showy puff-balls of starry light purple flowers, similar to other allium blooms, in mid summer. Due to the pungent, oniony scent of the plants' tissues and bulbs, it is naturally deer and rabbit resistant, and its attractive flowers are important to a number of important pollinators, including hover flies and native bees.

Growing to only 12-18" tall from large, onion-type bulbs, prairie onion thrives in drier rocky or sandy soils, and is highly tolerant of drought and black walnut soils, though it will not tolerate competition with taller plants or those with aggressive roots. Allium stellatum grows best in full sun to light shade, and its tolerance of dry, nutrient poor soils makes it a great addition to rock gardens, especially when mixed with low-growing sedums or other low, xeric plants.

Native to U.S.
Mature Plant Height: Short: 12-29"
Sun (6+ hours) and Part Shade/Sun (4-6 hours of sun)
Soil Moisture: Medium to Dry and Dry
Soil Type: Sand, Rocky, and Poor
Bloom Time: Summer
Flower Color: Purple and Pink
Foliage color: Green
Features: Attracts Pollinators and Fragrant
Tolerances: Black Walnut Tolerant, Deer Tolerant, Rabbit Tolerant, and Drought Tolerant
Garden Type: Pollinator Garden, Meadow, Small Space, and Rock Garden

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