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| Category: Bulb/Tuber/Rhizome etc. |
| Family: Amaryllidaceae (Onions) |
| Origin: California (U.S.A.) |
| Flower Color: Lavender Pink |
| Bloomtime: Spring/Summer |
| Height: 1-2 feet |
| Width: <1 foot |
| Exposure: Full Sun |
| Summer Dry: Yes |
| Deer Tolerant: Yes |
| Irrigation (H2O Info): No Irrigation required |
| Winter Hardiness: < 0 °F |
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Allium unifolium (One-leaf onion) - Native California bulb that forms clumps of grass-like slightly flattened 16 inches tall leaves with taller stalks bearing an umbel of 1/2 inch long lavender pink flowers from late May into July with papery tepals surrounding developing fruit that prolongs the display. Plant in full sun in most soil types - does particularly well in clay soils. Irrigate in spring (if natural rainfall is light) to early summer - allow to go dry when dormant. Allium unifolium is native to moist grasslands along forested and chaparral areas along the coastal ranges of California from Humboldt County south to San Luis Obispo County. The specific name "unifolium" and common name One-leafed onion is misleading as there are usually 2 and sometimes 3 or 4 leaves instead of one as these names would imply.
The information that is presented on this page is based on research we have conducted about this plant in our library and from reliable online sources. We also consider observations we have made of it in the nursery's garden and in other gardens we have visited, as well how it performs in our nursery crops out in the field. We incorporate comments that we receive from others as well and welcome getting feedback from anyone who may have additional information, particularly if they know of cultural information that would aid others in growing Allium unifolium. |
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