Needle-tip Blue-eyed Grass Sisyrinchium mucronatum
Other Common Name(s):
- Phonetic Spelling
- sis-ee-RINK-ee-um muh-kron-AH-tum
- Description
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Needle-tipped Blue-eyed Grass is a perennial in the iris family native to Canada and the southeastern United States. Contrary to its common name, it is not a grass, but a member of the genus Sisyrinchium, which includes annuals and perennials in the iris family. The low growing, narrow leaves do have a grass-like appearance, thus the common name.
Growing in the form of an upright clump, thin rhizomes spread outward from the clump.
Its native habitat includes forests, woodlands, fields, meadows, and along ponds and streams.
Typically in groups of 2 to 4 flowers on each stalk, the dainty, deep blue to violet flowers open one at a time. Occasionally, white flowers will appear. The star shaped blooms are under 3/4 inch across, and each has 3 petals and 3 sepals that are very similar in appearance, however, the sepals are slightly wider than the petals. At the tip of each rounded petal or sepal is a needle like tip, thus its common name of Needle-tip Blue-eyed grass. The flowers are enclosed by 2 bracts that resemble leaves and are wider than the stem. Flowers close in the late afternoon to evening and open again in the morning.
Insects, Diseases, and Other Plant Problems: No serious issues.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Cultivars / Varieties:
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Attributes:
- Genus:
- Sisyrinchium
- Species:
- mucronatum
- Family:
- Iridaceae
- Uses (Ethnobotany):
- Native wildflower
- Life Cycle:
- Bulb
- Perennial
- Recommended Propagation Strategy:
- Seed
- Country Or Region Of Origin:
- Canada, southeastern U.S.A.
- Distribution:
- AL, CT, DC, DE, GA, IL, LA, MA, MD, ME, MI, MN, MS, NC, ND, NH, NJ, NY, OH, PA, SC, TN, VA, TT, WI, WV
- Wildlife Value:
- Songbirds are attracted to the fruits.
- Play Value:
- Attractive Flowers
- Easy to Grow
- Dimensions:
- Height: 0 ft. 6 in. - 1 ft. 6 in.
- Width: 0 ft. 6 in. - 0 ft. 8 in.
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Whole Plant Traits:
- Plant Type:
- Bulb
- Native Plant
- Habit/Form:
- Clumping
- Erect
- Growth Rate:
- Medium
- Maintenance:
- Low
- 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:
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Dry
- Available Space To Plant:
- Less than 12 inches
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
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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:
- Tiny, round, fruits display from June to July on a thin stalk. When ripe, it will split open to reveal two or more black seeds.
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Flowers:
- Flower Color:
- Blue
- Purple/Lavender
- White
- Flower Inflorescence:
- Panicle
- 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:
- Deep blue to violet flowers bloom from April to June.
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Leaves:
- Leaf Color:
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- > 6 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Basal leaves up to 8" long are formed and are shorter than the flowering stalks. Their width is less than 1/10 of an inch.
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Stem:
- Stem Is Aromatic:
- No
- Stem Form:
- Straight
- Stem Surface:
- Smooth (glabrous)
- Stem Description:
- Stiff, slender, unbranched stems have wings and smooth edges. The flowers sit at the top of the 1/16" wide stems.
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Landscape:
- Landscape Location:
- Coastal
- Meadow
- Naturalized Area
- Pond
- Slope/Bank
- Walkways
- Landscape Theme:
- Cottage Garden
- Cutting Garden
- Native Garden
- Rain Garden
- Rock Garden
- Design Feature:
- Border
- Mass Planting
- Attracts:
- Songbirds
- Resistance To Challenges:
- Salt