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Autumn onion

Allium stellatum

Also called Glade Onion, Pink Flowered Onion, Prairie Onion

Autumn onion
Photo: Mason Brock (Masebrock), Public domain

Autumn onion is a North American perennial wild onion grown from an underground bulb, producing a rounded cluster of pink to purple flowers in summer on a leafless stem. It does best in lean, sandy or rocky soil in full sun.

Family
Amaryllidaceae (Daffodil & onion family)
Grows as
Bulb
Light
Full sun
Water
Water sparingly and let the soil dry out between waterings; it is adapted to dry prairie conditions.
Soil
Well-drained, sandy or rocky soil; lean soil is preferred.
Temperature
Hardy in cold winters; suited to temperate climates, roughly USDA zones 3 to 8.
How easy
Easy
Safety
Not known to be toxic
Edible
Yes, some parts
Native range
C. & SE. Canada to C. & EC. U.S.A.
Climate
temperate

About

Allium stellatum, commonly known as the autumn onion, prairie onion, cliff onion, or glade onion, is a North American species of wild onion in the Amaryllidaceae family that is native to central Canada and the central United States.

Where it grows

The plant ranges from Ontario and Saskatchewan south to Tennessee and Texas. Allium stellatum grows in rocky, sandy soil.

Other Allium plants

South Idaho onion · Abrams' allium · Allium aciphyllum · Tapertip onion · Allium aeginiense · Allium aflatunense · Allium agrigentinum · Allium alabasicum · Allium albotunicatum · Allium alibile · Altai Onion · Allium altissimum

Text excerpted from the Wikipedia article Allium stellatum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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