Autumn Onion, Prairie Onion
Allium stellatum (Prairie Onion) is a bulbous perennial forming a very compact clump of flat, slender, grass-like green leaves, 12 in. long (30 cm). From mid-summer to early fall, profuse, rounded umbels, 3-4 in. across (7-10 cm), tightly packed with rose-pink to lavender flowers are borne atop leafless stems just above the foliage. Emerging in spring, the foliage usually dies back by the time of flowering. All parts of this plant exude an onion fragrance when cut or bruised. The bulbs have a strong flavor and can be eaten raw or parboiled. Early explorers ate them, but also used them to treat colds, coughs, and asthma, or to repel insects. Tolerant to hot and dry conditions, this North American native is suitable for rock gardens.
| Hardiness |
3 - 8 |
|---|---|
| Plant Type | Bulbs |
| Plant Family | Amaryllidaceae |
| Genus | Allium |
| Common names | Onion |
| Exposure | Full Sun, Partial Sun |
| Season of Interest | Summer (Mid, Late), Fall |
| Height | 1' - 2' (30cm - 60cm) |
| Spread | 6" - 1' (15cm - 30cm) |
| Spacing | 6" - 12" (15cm - 30cm) |
| Maintenance | Low |
| Water Needs | Low, Average |
| Soil Type | Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Fragrant, Showy |
| Native Plants | United States, North Dakota, Missouri, Minnesota, Midwest, Illinois, Michigan, Kansas, Iowa, Indiana, Wisconsin, South Dakota, Southeast, North Carolina, Tennessee, Arkansas, Southwest, Texas, Oklahoma, Wyoming |
| Tolerance | Drought, Deer, Dry Soil, Rocky Soil |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Informal and Cottage, Prairie and Meadow, Gravel and Rock Garden |
| Hardiness |
3 - 8 |
|---|---|
| Plant Type | Bulbs |
| Plant Family | Amaryllidaceae |
| Genus | Allium |
| Common names | Onion |
| Exposure | Full Sun, Partial Sun |
| Season of Interest | Summer (Mid, Late), Fall |
| Height | 1' - 2' (30cm - 60cm) |
| Spread | 6" - 1' (15cm - 30cm) |
| Spacing | 6" - 12" (15cm - 30cm) |
| Maintenance | Low |
| Water Needs | Low, Average |
| Soil Type | Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Fragrant, Showy |
| Native Plants | United States, North Dakota, Missouri, Minnesota, Midwest, Illinois, Michigan, Kansas, Iowa, Indiana, Wisconsin, South Dakota, Southeast, North Carolina, Tennessee, Arkansas, Southwest, Texas, Oklahoma, Wyoming |
| Tolerance | Drought, Deer, Dry Soil, Rocky Soil |
| Attracts | Bees, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Informal and Cottage, Prairie and Meadow, Gravel and Rock Garden |
How many Allium stellatum (Prairie Onion) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Allium stellatum (Prairie Onion) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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