Blue-eyed Grass
Sisyrinchium striatum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
16 inches
Width
8 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Sisyrinchium striatum, commonly known as the striped blue-eyed grass, is a perennial herb with slender, grass-like foliage and star-shaped, violet-blue flowers that bloom in loose clusters during the summer. This cultivar is appreciated for its vibrant, deep violet-blue flowers and its ability to adapt well to container growing and well-drained soils in garden settings.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into well-drained soil in early spring.
- Water regularly to keep soil moist but not waterlogged.
- Place in full sun to partial shade for optimal blooming.
- Divide clumps every 3-4 years in early spring or fall.
- Mulch around plants to conserve moisture and suppress weeds.
- Fertilize lightly with a balanced fertilizer in spring.
Pro Tip
Ensure good drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water consistently during dry periods 🌱
- Divide crowded clumps in early spring or fall
- Mulch to retain soil moisture and regulate temperature
Don't
- Overwater to avoid root rot ❌
- Use heavy clay soil without amendment
- Allow soil to dry out completely between waterings
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Blue-eyed Grass questions
What zones can Blue-eyed Grass grow in?
Blue-eyed Grass is hardy in USDA Zones 4–6. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Blue-eyed Grass deer resistant?
Not reliably. Deer may browse Blue-eyed Grass, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Blue-eyed Grass bloom?
Blue-eyed Grass typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Blue-eyed Grass need full sun?
Blue-eyed Grass does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Sisyrinchium to compare
Lucerne Blue-eyed Grass
Sisyrinchium angustifolium 'Lucerne'
Suwannee Blue-eyed Grass
Sisyrinchium nashii 'Suwannee'
Western Blue-eyed Grass
Sisyrinchium bellum
Yellow Blue-eyed Grass
Sisyrinchium tinctorium 'Puerto Yellow'
Narrow-leaved Blue-eyed Grass
Sisyrinchium angustifolium
Devon Skies Blue-Eyed Grass
Sisyrinchium x hybrida 'Devon Skies'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Blue-eyed Grass with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
