Narrow-leaf Blue-eyed-grass Sisyrinchium angustifolium
Other Common Name(s):
Previously known as:
- Sisyrinchium carolinianum
- Sisyrinchium gramineum
- Sisyrinchium gramonoides
- Sisyrinchium membranaceum
- Sisyrinchium nuttallii
- Phonetic Spelling
- sis-ee-RINK-ee-um an-gus-tee-FOH-lee-um
- Description
-
The common name is derived from the blue flowers.
These blue (to a blue-violet) flowers are on branching stems with grass-like foliage. However, this plant is not a grass but is in the iris family. The stiff, upright, sword-shaped leaves form into a fan shape, very similar to other plants in the iris family. These leaves are typically narrower than the leaves of an iris, making it look more like a grass. After the flowers have bloomed, it would be hard to pick out this plant when growing along with other grassy plants.
Growing from rhizomes, this plant likes moist to average soil and is generally found in moist meadows, marshes, low woods, damp open woods, on stream banks and slopes. Planting is groups will provide curb appeal.
It is the most common blue-eyed grass in the eastern portion of the United States.
The leaves were cooked and eaten by Native Americans as a medicinal plant. It was said to regulate the bowels.
Habitat: Woodlands, forests, meadows, sand hills, and swales.
Insects, Diseases, and Other Plant Problems: No serious issues. Being a self-seeding plant, it should be cut down after blooming in order to avoid unwanted spread.
Division should be performed every few years to keep the plants healthy.
- See this plant in the following landscapes:
- Native Woodland Garden, Durham Pollinator Garden in Full Sun
- Cultivars / Varieties:
-
- 'Lucerne'
Found in Lucerne, Switzerland, it produces larger flowers that are more abundant.
- 'Lucerne'
- 'Lucerne'
- Tags:
- Cultivars / Varieties:
-
- 'Lucerne'
Found in Lucerne, Switzerland, it produces larger flowers that are more abundant.
- 'Lucerne'
- 'Lucerne'
- Tags:
-
-
Attributes:
- Genus:
- Sisyrinchium
- Species:
- angustifolium
- Family:
- Iridaceae
- Uses (Ethnobotany):
- Naturalized areas.
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- North America
- Distribution:
- AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO< SM, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV
- Wildlife Value:
- Food source for birds. Butterflies, bumblebees, sweat bees, bee flies and syrphid flies are attracted to this plant for its nectar and pollen.
- Play Value:
- Attractive Flowers
- Attracts Pollinators
- Buffer
- Defines Paths
- Easy to Grow
- Wildlife Food Source
- Particularly Resistant To (Insects/Diseases/Other Problems):
- light shade, insect pests, diseases
- Dimensions:
- Height: 1 ft. 6 in. - 2 ft. 0 in.
- Width: 0 ft. 6 in. - 1 ft. 0 in.
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-
Whole Plant Traits:
- Plant Type:
- Ground Cover
- Herbaceous Perennial
- Native Plant
- Wildflower
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Habit/Form:
- Clumping
- Dense
- Growth Rate:
- Medium
- Maintenance:
- Medium
- Texture:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- High Organic Matter
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Dry
- Available Space To Plant:
- Less than 12 inches
- 12 inches-3 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
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Fruit:
- Fruit Color:
- Black
- Brown/Copper
- Display/Harvest Time:
- Summer
- Fruit Type:
- Capsule
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- Displays from May to July. The capsules can be collected for seed when they darken and become wrinkled.
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Flowers:
- Flower Color:
- Blue
- Gold/Yellow
- Purple/Lavender
- White
- Flower Inflorescence:
- Cyme
- Flower Value To Gardener:
- Good Cut
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Star
- Flower Petals:
- 6 petals/rays
- Flower Size:
- < 1 inch
- Flower Description:
- This plant has 0.5 in., delicate, bright blue-violet flowers with a yellow eye. Blooms from March to June on stalks above the leaves.
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Leaves:
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Leaf Color:
- Green
- Leaf Value To Gardener:
- Showy
- Leaf Type:
- Fronds
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- > 6 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- This pale green to whitish plant has slender, wiry stems in a tuft.
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Stem:
- Stem Is Aromatic:
- No
- Stem Cross Section:
- Angular
- Stem Description:
- This pale green to whitish plant has slender, flat, wiry stems in a tuft.
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Landscape:
- Landscape Location:
- Meadow
- Naturalized Area
- Slope/Bank
- Walkways
- Woodland
- Landscape Theme:
- Cottage Garden
- Native Garden
- Rain Garden
- Rock Garden
- Design Feature:
- Border
- Mass Planting
- Attracts:
- Bees
- Resistance To Challenges:
- Diseases
- Insect Pests