Also known as Blue-eyed Grass · 522 saves

Sisyrinchium

Sisyrinchium, the genus most gardeners know as blue-eyed grass. We track 14 varieties; the ones most used by real gardeners.

14 varieties2 speciesZones 4–10Mostly full sun

The 12 most-saved Sisyrinchium varieties

Browse all 14 Sisyrinchium varieties →

2 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 14 most-grown of them.

The Sisyrinchium year

  • DivideMarch and September100% of varieties

    Divide congested clumps every 3-4 years to maintain vigor

  • Spring CleanupFebruary and March93% of varieties

    Remove old, brown foliage before new growth begins

  • DeadheadMay and June64% 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

ProblemWhat you'll seeWhat to do
AphidsSticky residue and distorted leavesSpray with insecticidal soap or neem oil
Root rotWilting and browning foliageEnsure well-draining soil and reduce watering
Bulb mitesWeak, rotting bulbs with fine webbingTreat with appropriate miticides and ensure good drainage
SlugsChewed edges on leavesApply organic slug bait or use beer traps
Root rotWilting and browning of foliageImprove drainage and reduce watering frequency
Powdery mildewWhite powder on leavesImprove air circulation and apply sulfur fungicide
Leaf spotBrown or black spots on foliageRemove affected leaves and apply fungicide if necessary

Making more Sisyrinchium

Division

  1. Divide clumps in early spring or fall.
  2. Replant divisions immediately at same depth for best results.

Seed

  1. Tuck seeds into moist soil in early spring.
  2. 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 14 distinct Sisyrinchium varieties. The most popular — ranked by 522 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.

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