Wednesday, June 03, 2026

Blue-Eyed Grass Plant Profile

Blue-Eyed Grass Plant Profile

Blue-Eyed Grass (Sisyrinchium angustifolium) is a clump-forming perennial plant with tiny violet-blue flowers. These flowers close up late in the day and open again in the morning, It is actually not a grass, despites its name and grass-like looks but is instead in the Iris family.

It is native to eastern North America and is hardy to USDA Zones 4 to 9. It grows from 8 to 12 inches tall.

It flowers in late spring and does best in full to part sun. It prefers moist or wet soils and will die if it is allowed to get too dry. Avoid applying mulch around it as that can cause crown rot.

Blue-Eyed Grass is often used as a groundcover, edging plant, or in cottage gardens. Pollinators are attracted to the flowers’ nectar and pollen. It is considered to be rabbit- and deer-resistant.

You can propagate it by digging and dividing it in the springtime. It can also self-sow if you let it. Deadhead the flowers as they finish blooming, if you do not want it to produce seeds.

Blue-Eyed Grass: You Can Grow That!

The video was produced by Washington Gardener Magazine.

Audio, Videos Photos, and Text by Kathy Jentz

Editing by Koree Perry

 

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If you liked this video, we think you will like these other Plant Profiles:

~ Little Bluestem Grass: 

https://washingtongardener.blogspot.com/2022/08/little-bluestem-grass-plant-profile.html

~ Mexican Feather Grass:

https://washingtongardener.blogspot.com/2020/10/plant-profile-mexican-feather-grass.html

~ Hakone Grass: 

https://washingtongardener.blogspot.com/2019/10/plant-profile-hakone-grass.html

 

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