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Sisyrinchium atlanticum E.P. Bicknell
Eastern Blue-eyed Grass
Iridaceae (Iris Family)
Synonym(s): Sisyrinchium apiculatum, Sisyrinchium mucronatum var. atlanticum
USDA Symbol: SIAT
USDA Native Status: L48 (N), CAN (N)
A grass-like, clumped perennial, to 20 in. high, with pale-green foliage and flattened flowering stems terminating in loose clusters of pale-blue, six-petaled, yellow-centered flowers.
A member of the iris family (family Iridaceae) which consists of herbs growing from rhizomes, bulbs, or corms, with narrow basal leaves and showy clusters at the tips of long stalks. There are about 60 genera and 1,500 species, distributed in temperate and tropical regions. Among them, Iris, Freesia, Gladiolus, Bugle Lily, and Montbretia are popular ornamentals. Saffron dye is obtained from Crocus, and "essence of violets," used in perfumes, is extracted from the rhizomes of Iris.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Fruit Type: Capsule
Size Notes: Up to about 20 inches tall.
Bloom InformationBloom Color: White , Blue , Purple , Violet
Bloom Time: Mar , Apr , May , Jun , Jul
Bloom Notes: Pale blue or bluish violet to purple, occasionally white.
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , IL , IN , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , PA , RI , SC , TN , TX , VA , VT
Native Distribution: ME to MI (locally), s. to FL & MS
Native Habitat: Meadows, marsh edges & thin woods near shores & coasts
Growing ConditionsLight Requirement: Sun
Soil Moisture: Wet
Soil Description: Moist soils; usually sandy or rocky-acid.
PropagationDescription: Propagate by seed or division. Several dozen divisions can be expected from a mature, healthy specimen.
Seed Collection: Collect seed capsule when they have darkened to brown and become wrinkled. Allow the tiny, black seeds to air dry before storing in a sealed, refrigerated container.
Commercially Avail: yes
National Wetland Indicator Status
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Sisyrinchium atlanticum in USDA Plants
FNA: Find Sisyrinchium atlanticum in the Flora of North America (if available)
Google: Search Google for Sisyrinchium atlanticum
MetadataRecord Modified: 2023-02-27
Research By: TWC Staff