How much sun does American garlic need?

American garlic grows best in full sun conditions.

When does American garlic bloom?

American garlic blooms in April, May, and June.

Where is American garlic native?

American garlic (Allium unifolium) is native to CA, OR, per vouchered herbarium specimen records and regional native plant society lists.

American garlic

Name: Pollinator Patch
Author: Pollinator Patch

Allium unifolium

Last reviewed: November 2026

American garlic (Allium unifolium) is a perennial forb native to CA, OR. It blooms in April, May, and June. The flowers draw bees.

Watering reminders and freeze alerts for American garlic, free in the app.

Toxicity unknown

American garlic (Allium unifolium) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

12"–18" H × 4"–6" W

Bloom

Apr, May, Jun

Native to

CA, OR

Pollinators

bees

Before you buy

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Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 461 programs across 44 states, each with a link to the provider and the date we last checked it.

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Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like American garlic.

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Browse plants for this ecoregion

Coast Range Central California Foothills and Coastal Mountains Northwestern Forested Mountains

A bulb-forming forb with a single strap-like leaf and a loose umbel of pink star-shaped flowers atop a slender stalk. Goes fully dormant after its brief spring bloom, disappearing until the following year.

Growing American garlic

Grow American garlic in full sun and low water. Mature plants reach 12 to 18 inches tall and spread 4 to 6 inches wide.

Wildlife value

Flowers are a spring nectar and pollen source for native bees.

Common questions

How much sun does American garlic need?: American garlic grows best in full sun conditions.
When does American garlic bloom?: American garlic blooms in April, May, and June.
Where is American garlic native?: American garlic (Allium unifolium) is native to CA, OR, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does American garlic attract?: American garlic draws bees.

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.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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Ready to grow American garlic? Add it to your garden in the Pollinator Patch App to track it and get season-by-season care guidance.

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