Needletip Blue-Eyed Grass
Sisyrinchium mucronatum
- Native to:
- Canada, United States
Nathaniel Lord Britton (1859-1934) and Addison Brown (1830-1913)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Iridaceae
- Genus:
- Sisyrinchium
- Species:
- Sisyrinchium mucronatum
- USDA Symbol:
- SIMU3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 45 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- blue, violet
Garden & Ecology Notes
- Wildlife Value:
- small birds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- moist, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- prefers open, sunny habitats
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require light for germination. Cold stratification improves germination rates significantly.
The above propagation data sourced from Claude AI