Sisyrinchium angustifolium 'Lucerne' Blue-Eyed Grass



Sisyrinchium angustifolium 'Lucerne' has fine, grass-like foliage and bright blue to purple, star-shaped flowers with gold centers. Also called Blue-Eyed Grass, it blooms for 8-10 weeks in late spring and early summer. It blooms are larger and more abundant than the species. It is visited by various native bees and pollinating flies. Songbirds eat its seeds.

Sisyrinchium angustifolium is native to much of North America, including eastern Canada, south to Florida, west to Texas and Minnesota. It is typically found growing in floodplains, along woodland edges and clearings, on riverbanks, on roadsides and in moist meadows.

Sisyrinchium angustifolium prefers sun to part shade and moist, well-drained soil. Plants may self sow where happy. Avoid heavy mulch which may encourage crown rot. A careful look at the plant will reveal its kinship to Irises.


  • Common Names: Blue-Eyed Grass
  • Zones: 5-9
  • Light Requirements: Part Sun to Part Shade
  • Soil Preference: Average to moist, well-drained
  • Height at Maturity: 10
  • Width at Maturity: 12
  • Bloom Color: Purple
  • Bloom Time: Late spring, early summer

Special Features

  • Attracts:
  • Tolerates: Deer.
  • Other Features: Cut Flower. Evergreen. Native to North America.

Care and Growing Tips

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Shipping Info

 Spring 2023 shipping schedule:

Zones 9, 10: Starting Mon. March 20th
Zone 8: Starting Mon. March 27th
Zone 7: Starting Mon. April 3rd
Zone 6: Starting Mon. April 17th
Zone 5: Starting Mon. May 1st
Zones 2, 3, 4: Starting Mon. May 8th

If you'd like to receive your plants now, you can request it in the 'shipping requests' box on the order or email us. (Please note that we will not ship dormant plants, and we do not offer any sort of guarantee for plants overwintering.)

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We ship via UPS & USPS (the Post Office), and their ship rates are automatically generated through our site. We do not profit on shipping costs. We are working with these providers to get our customers the best rates possible.

All ship times are subject to change if extreme weather conditions are present here at the nursery or at the shipping destination.

Please note: Depending on the time of year, the foliage of the plants may be trimmed to fit into our shipping boxes. This could delay the flowering of the plant, but many perennials actually benefit from being cut back.

We are currently not able to ship to Puerto Rico, Hawaii, and outside of the US.