Iridaceae
Sisyrinchium idahoense var. idahoense
Sisyrinchium idahoense var. idahoense var. idahoense
Also known as Sisyrinchium idahoense var. birameum, Sisyrinchium oreophilum, Sisyrinchium birameum
Flowering Plants · Native Plants · Blue-Eyed Grass · Sisyrinchium · Native · Wildflower · Pacific Northwest · Moist Soil · Perennial · Pollinator · Meadow · Spring Bloomer
Idaho blue-eyed grass is a charming native perennial with delicate, violet-blue star-shaped flowers that bloom in spring and early summer. It prefers part shade to full sun with consistently moist, well-drained soil, making it well suited to meadow gardens, stream edges, or moist borders. Once established it is easy to grow with minimal care and naturalizes gracefully in Pacific Northwest native plant gardens.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Keep soil consistently moist but not waterlogged; water when the top inch of soil begins to dry · Every 7-10 days
- Maintenance
- Low
- Soil
- sandy loam
- Soil pH
- 6.4–8.2
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 3 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Blue
- Foliage
- Yellow · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- British Columbia, California, Idaho, Montana, Oregon, Washington, Wyoming
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Sisyrinchium
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Sisyrinchium idahoense var. macounii
Sisyrinchium idahoense var. macounii
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Sisyrinchium idahoense
Sisyrinchium idahoense
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Sisyrinchium idahoense var. occidentale
Sisyrinchium idahoense var. occidentale
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