Allium falcifolium

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Allium falcifolium
Allium falcifolium
Allium falcifolium bulb

Botanical Name: Allium falcifolium
Common Name: Sickle-leaf Onion

Clumps of grass-like leaves with flowers in the Spring. The stems are green-brown, and the plant omits an onion smell when crushed. This form of onion is toxic and should not be eaten.

Plant Family: Amaryllidaceae

Plant Type: Bulb

Height by Width: 1' H

Growth Habit: Clumps of grass-like leaves

Deciduous/Evergreen: Summer dormant

Growth Rate: Fast

Sun Exposure: Full sun to part shade

Soil Preference: Affinity to serpentine and heavy soils

Water Requiremenets: Dry summer dormancy

Cold Hardy to: 8,600'

Flower Season: Spring

Flower Color: Red to Deep Red

Endangered? Not Listed

Distribution: Northwestern California, San Francisco Bay Area

Natural Habitat: Chaparral, Foothill Woodland, Mixed Evergreen Forest, Yellow Pine Forest

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Care and Maintenance

If planted in the ground, plant the base of the bulb at a depth three times the height of the bulb. This may be a better candidate for pot culture. In either case, stop watering once the leaves begin to turn brown, but keep leaves on the plant until they turn completely brown.


Other Names

  • Harlow, Nora and Kristin Jakob. Wild Lilies, Irises, and Grasses: gardening with California Monocots. Berkeley and Los Angeles, CA: University of California Press. 2003.