Also known as Blue-eyed Grass · 566 saves
Sisyrinchium
Sisyrinchium, the genus most gardeners know as blue-eyed grass. We track 17 varieties; the ones most used by real gardeners.
The 15 most-saved Sisyrinchium varieties
Browse all 17 Sisyrinchium varieties →
5 species of Sisyrinchium
Each one is a parent of the varieties above.
Track your Sisyrinchium in Sow
Save the Sisyrinchium you grow and get care reminders timed to your zone.
How to grow Sisyrinchium
Whats common across all Sisyrinchium varieties in our catalog — drawn from the care records of the 17 most-grown of them.
The Sisyrinchium year
- DivideApril and October100% of varieties
Divide congested clumps every 3-4 years to maintain vigor
- Spring CleanupMarch and April88% of varieties
Remove old, brown foliage before new growth begins
- DeadheadJune and July65% of varieties
Remove spent flowers to prevent aggressive self-seeding and keep tidy.
Do
- Deadhead spent flowers to encourage more blooms
- Water during dry spells 🌱
- Water regularly during dry periods 🌱
- Divide clumps every 3-4 years
- Water regularly to keep soil moist 🌱
Avoid
- Avoid overwatering, which can cause root rot ❌
- Overwater to prevent root rot ❌
- Avoid overwatering to prevent root rot ❌
- Overwater to avoid root rot ❌
What goes wrong with Sisyrinchium
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue and distorted leaves | Spray with insecticidal soap or neem oil |
| Root rot | Wilting and browning foliage | Ensure well-draining soil and reduce watering |
| Spider Mites | Fine webbing and stippled foliage during hot, dry summer weather. | Increase local airflow and spray leaf undersides thoroughly with water. |
| Spider mites | Fine webbing and stippled foliage during hot dry spells. | Increase localized humidity and spray undersides of leaves with water. |
| Root rot | Wilting and browning of foliage | Improve drainage and reduce watering frequency |
| Powdery mildew | White powder on leaves | Improve air circulation and apply sulfur fungicide |
| Root Rot | Yellowing foliage, soft decaying crown tissue, and sudden plant collapse. | Improve soil drainage immediately and remove waterlogged organic matter. |
Making more Sisyrinchium
Division
- Divide clumps in early spring or fall.
- Replant divisions immediately at same depth for best results.
Seed
- Tuck seeds into moist soil in early spring.
- Keep soil consistently moist for germination, which takes about 2-3 weeks.
Sisyrinchium questions
How many types of Sisyrinchium are there?
The Sow catalog tracks 17 distinct Sisyrinchium varieties. The most popular — ranked by 566 real gardeners — are shown first above.
What zones does Sisyrinchium grow in?
Across its varieties, Sisyrinchium covers USDA Zones 4–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Sisyrinchium bloom?
Most Sisyrinchium varieties bloom in late spring to early summer, late spring, mid-spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Sisyrinchium should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.














