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Allium unifolium


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Allium unifolium

  1. 1. * Meadow Onion – Allium unifolium (AL-ee-um yoo-nee-FOH-lee-um) Family: Liliaceae (Lily Family) Native to: Coastal Ranges of Central & N. CA to Santa Barbara Co.; usually in moist clay or serpentine soils, on grassy streambanks and sea cliffs, often in open areas in pine forests. perennial bulb mature height: 1-3 ft. mature width: 1-3 ft. A nice little native onion that grows 6-18 inches tall and about 12 inches wide. Strappy, blue-green leaves wither before the flowers emerge. Plant dies back to ground after blooming. Reproduces by creating new bulbs on short rhizomes (older bulbs will die after flowering). Growth characteristics: Blooms in late spring – usually April-May (but may be June) for about 3 weeks. Flowers in loose bunches (umbels). Flowers are a lovely rose-pink to lavender-pink. A very nice color that looks nice with other pink, blue & purple spring flowers. Flowers star-shaped, typical for onions. Makes a very nice spring cut-flower – flowers are sweetly fragrant. Blooms/fruits: Uses in the garden: Often used as a bulb for naturalizing – will spread in the garden. Great choice for dry mixed beds or tucked around native shrubs. Super container plant; nice addition to rock gardens or with summer-dry ferns, grasses. Bulbs are edible, so consider for the vegetable garden. Sensible substitute for: Non-native ornamental onions. Attracts: Good butterfly habitat (nectar source). Requirements: Element Sun Soil Water Fertilizer Other Requirement Full sun to part-shade. Any well-drained soil including clays; any local pH Likes to dry out after blooming, but can take a little summer water (Zone 1 or 1-2) Fine with organic amendments, organic mulches; can take ½ strength fertilizer. Management: Pretty easy bulb to grow. Reliable if allowed to dry out in summer. Propagation: from seed: easy in fall/winter by bulbs: dig up in fall; divide & replant Plant/seed sources (see list for source numbers): 1, 8, 9, 13, 18 3/26/11 © Project SOUND