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Hooker's onion

Allium acuminatum

Last reviewed: August 2026

Hooker's onion (Allium acuminatum)
Photo: (c) Alex Abair, some rights reserved (CC BY), uploaded by Alex Abair

Light

full sun

Water

low

Size

6"–14" H × 3"–6" W

Bloom

Apr, May, Jun

Native to

AZ, CA, CO, ID and 6 more states

Pollinators

bees, butterflies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 431 programs across 44 states, each with a link to the provider and the date we last checked it.

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A small bulb with slender grass-like leaves that wither before a bare stalk of star-shaped pink flowers appears. It goes fully dormant through the dry summer.

Wildlife value

Flowers provide nectar for native bees and butterflies, and the bulbs are a food source for small mammals.

Common questions

How much sun does Hooker's onion need?
Hooker's onion grows best in full sun conditions.
When does Hooker's onion bloom?
Hooker's onion blooms in April, May, and June.
Where is Hooker's onion native?
Hooker's onion (Allium acuminatum) is native to AZ, CA, CO, ID and 6 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Hooker's onion attract?
Hooker's onion draws bees and butterflies.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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