American Blue-eyed-grass
Sisyrinchium montanum
Last reviewed: August 2026
Toxicity unknown
American Blue-eyed-grass (Sisyrinchium montanum) 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
medium
Size
6"–18" H × 4"–12" W
Bloom
May, Jun
Native to
CO, CT, ID, IL and 20 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
American blue-eyed-grass forms neat, grass-like clumps with delicate blue flowers that bloom in late spring and early summer. Despite its name, it's actually a member of the iris family and creates an orderly, low-maintenance groundcover. The small star-shaped flowers add subtle color without being overwhelming.
In an HOA neighborhood
American Blue-eyed-grass is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
The flowers attract small native bees and butterflies during its May-June bloom period. Its compact size makes it a good pollinator plant for smaller garden spaces.
Common questions
- How much sun does American Blue-eyed-grass need?
- American Blue-eyed-grass grows best in full sun conditions.
- When does American Blue-eyed-grass bloom?
- American Blue-eyed-grass blooms in May and June.
- Where is American Blue-eyed-grass native?
- American Blue-eyed-grass (Sisyrinchium montanum) is native to CO, CT, ID, IL and 20 more states, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does American Blue-eyed-grass attract?
- American Blue-eyed-grass draws bees and butterflies.
- Is American Blue-eyed-grass HOA-friendly?
- American Blue-eyed-grass is generally an HOA-friendly choice in the right placement, with low maintenance.
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 American Blue-eyed-grass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz