Geyer'S Onion
Allium geyeri
Last reviewed: July 2026

Toxicity unknown
Geyer'S Onion (Allium geyeri) 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"–24" H × 6"–12" W
Bloom
May, Jun
Native to
AZ, CO, ID, MT and 8 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 437 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Geyer's onion is a compact native wildflower that produces small purple-pink flower clusters atop slender stems in late spring and early summer. This drought-tolerant perennial forms neat clumps with narrow, grass-like foliage that dies back naturally in summer after blooming.
In an HOA neighborhood
Geyer'S Onion takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Foliage dies back completely in summer
- May appear as empty space mid-season
- Wildflower appearance conflicts with traditional landscaping
Wildlife value
The flowers attract native bees and butterflies during the May-June bloom period. Seeds provide food for birds later in the season.
Common questions
- How much sun does Geyer'S Onion need?
- Geyer'S Onion grows best in full sun conditions.
- When does Geyer'S Onion bloom?
- Geyer'S Onion blooms in May and June.
- Where is Geyer'S Onion native?
- Geyer'S Onion (Allium geyeri) is native to AZ, CO, ID, MT and 8 more states, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Geyer'S Onion attract?
- Geyer'S Onion draws bees and butterflies.
- Is Geyer'S Onion HOA-friendly?
- Geyer'S Onion takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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.
Ready to grow Geyer'S Onion? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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