Iridaceae
Narrow-leaf blue-eyed grass: Ground Cover Plant
Sisyrinchium angustifolium
An easy-to-care-for plant that prefers sunny locations and consistently moist but well-drained soil.
Every 4 days
Bright indirect
-30° - 35°C
40% - 70%
Categories
What is Narrow-leaf blue-eyed grass?
Narrow-leaf blue-eyed grass (Sisyrinchium angustifolium) is a easy-care plant from the Iridaceae family. Sisyrinchium angustifolium, commonly known as narrow-leaf blue-eyed grass, is a perennial wildflower native to North America. Although it has grass-like leaves, it actually belongs to the iris family (Iridaceae). Its small, star-shaped blue or violet flowers feature yellow centers and bloom from lat...
Narrow-leaf blue-eyed grass grows up to 50cm, spread of 30cm, watering every 4 days, -30°C – 35°C, 40–70% humidity. It is not suitable for indoor environments and safe for pets.
Unlike many tropical plants, Narrow-leaf blue-eyed grass tolerates watering mistakes. Best for beginners. Unlike many popular species, Narrow-leaf blue-eyed grass is safe to keep around pets.
How to Care for Narrow-leaf blue-eyed grass?
TLDR: Narrow-leaf blue-eyed grass needs Bright indirect, watering every 4 days, and temperatures between -30-35°C with 40-70% humidity.
How Often Should You Water Narrow-leaf blue-eyed grass?
Keep the soil evenly moist, especially during the blooming period, but avoid standing water.
How Much Light Does Narrow-leaf blue-eyed grass Need?
It requires full sun for the best flowering, but can tolerate afternoon shade in warmer climates.
What Is the Best Soil for Narrow-leaf blue-eyed grass?
Prefers humus-rich, loamy soil that does not dry out completely.
What Pot Should You Use for Narrow-leaf blue-eyed grass?
Glazed ceramic pots or garden beds that retain moisture.
Care Schedule
Fertilize
Every 60 days
Repot
Every 730 days
What Is Narrow-leaf blue-eyed grass and Where Does It Come From?
Sisyrinchium angustifolium, commonly known as narrow-leaf blue-eyed grass, is a perennial wildflower native to North America. Although it has grass-like leaves, it actually belongs to the iris family (Iridaceae). Its small, star-shaped blue or violet flowers feature yellow centers and bloom from late spring to early summer. It grows in compact clumps, making it ideal for rock gardens or naturalistic landscapes.
How to Propagate Narrow-leaf blue-eyed grass?
Division
- Division should be performed every 3-4 years to rejuvenate the plant.
- 1 Lifting
Dig up the mature plant clump in early spring before new growth becomes established.
- 2 Separation
Using a sharp knife or your hands, separate the rhizome into several smaller sections, ensuring each part has roots.
- 3 Planting
Replant the sections at their original depth and water them thoroughly.
Materials needed:
Seed Sowing
- The plant often self-seeds, allowing it to spread naturally.
- 1 Sowing
Sow the seeds in the fall directly into the ground or in pots.
- 2 Stratification
The seeds require a period of cold stratification during the winter months to germinate.
- 3 Germination
In the spring, as temperatures rise, the seeds will sprout.
Materials needed:
How Big Does Narrow-leaf blue-eyed grass Grow?
TLDR: Narrow-leaf blue-eyed grass can reach up to 50cm tall with Medium growth rate.
Max height
50cm
Spread
30cm
Growth rate
Medium
Foliage
Semi-evergreen
Plant Uses
Ornamental
Great for decoration
Ground Cover
Soil coverage
Medicinal Uses
- Brewed as a tea, it was traditionally used as a remedy for diarrhea by some Native American tribes.
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
Meaning & Symbolism
Represents purity and modesty due to its tiny but bright blossoms.
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Field Maple | Easy | Bright indirect | 14d | ✓ |
| Iberian Houseleek | Easy | Direct sun | 14d | ✓ |
| Silver Birch | Easy | Direct sun | 14d | ✓ |
| Common Blanketflower | Easy | Direct sun | 10d | ✓ |
