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Native Plant of the Week: Blue-eyed Grass

Family: Iridaceae


Name: Sisyrinchium angustifolium - Blue-eyed Grass


Bloom Time: May - June


Flower: Lavender-Blue


Soil Condition: Average-Moist


Light: Sun to Partial Shade


Height: 12-24"


Native Range: Central to Eastern United States including Long Island


Zone: 5 to 9


Blue-eyed Grass is not a grass at all but is a member of the Iris family. The grass like foliage looks great as an edging to a walkway. Great for naturalizing as it will self sow and spread by rhizomes to form a colony. It tolerates clay soil and bog situations. Deer resistant.

Maintenance: You may shear it after blooming to remove developing seed capsules.


Benefits: Attracts numerous types of pollinators including bumblebees, sweat bees, syrphid flies and butterflies. Songbirds eat the seeds.


Companion Plants: Aster laevis (Smooth Aster), Solidago odora (Sweet Goldenrod), Ruellia humilis (Wild Petunia)


Substitution Plant: Sisyrinchium atlanticum (Eastern Blue-eyed Grass)


Photo: Cathy DeWitt, CC BY-NC-ND 4.0

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