Idaho Blue-eyed Grass
Sisyrinchium idahoense
Idaho Blue-eyed Grass is a perennial for bulb layer, edging, suited to full sun to partial shade and clay or loam, flowering Apr, May, Jun.
| Type | Perennial |
|---|---|
| Mature height | 30 cm |
| Spread | 15 cm |
| Aspect | full sun to partial shade |
| Foliage | Deciduous |
| Hardiness | USDA 4a-9b, RHS H7 |
| Pollinator-friendly | Yes |
| Pet-safe | Yes |
Where to use it in a border
At around 30 cm, it sits best along the front edge, where a low, spreading habit reads best. Give it about 15 cm of room to spread, roughly 7 to the metre when planted in a drift. It is hardy across USDA zones 4a to 9b and rated H7 by the RHS, so check it suits your area before planting.
It appears in our lists of full sun, clay soil, pollinator-friendly plants, pet-safe plants.
Border Builder uses Idaho Blue-eyed Grass's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.
Flowering through the year
Worth knowing
- Its flowers are valued by bees and other pollinators.
Good companions
Plants that share its conditions and style, chosen to complement its place in the border:
- Coneflower 'Cheyenne Spirit'for height behind it
- Coneflower 'Pow Wow Wild Berry'to flower when it does not
- Wild Daffodilto flower when it does not
- American Spikenardfor height behind it
- Anise Hyssopto flower when it does not
- Aromatic Asterto edge in front
Garden styles
Cottage garden Meadow Woodland
Sources
Bloom timing and hardiness drawn from: