Sisyrinchium californicum
Photo: Eric KnightCC BY 4.0
perennialN. America Native

Golden-eyed Grass

Sisyrinchium californicum

The Story

Plant Bio

Sisyrinchium californicum, commonly known as golden-eyed grass, is a perennial plant native to the Pacific coast of North America. It forms clumps of iris-like, flattened green leaves.

Features star-shaped, bright yellow flowers that appear on leafless stems in late spring and early summer.

Uses & Benefits:

Ornamental UsesAdds delicate purple blooms to sunny gardens, attracting pollinators.
Practical UsesRequires minimal maintenance once established.
Ecological BenefitsNative plant supporting local biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

Moderate to wet

Humidity

Average

Lifespan

Perennial

Native To

Pacific Coast of North America

Toxicity

Non-toxic

Bloom period

Late spring – Early summer

J
F
M
A
M
J
J
A
S
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In flower about 2 months of the year

Planting

How to Grow

  1. Tuck seeds into well-drained soil in early spring.
  2. Mist cuttings regularly to maintain humidity for 6 weeks.
  3. Plant bulbs in fall for spring bloom.
  4. Water regularly during active growth, avoiding waterlogging.
  5. Fertilize with a balanced fertilizer in spring and summer.
  6. Divide clumps every 2-3 years in early spring.

Pro Tip

Ensure soil is well-drained to prevent bulb rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

  • Water consistently during dry spells 🌱
  • Deadhead spent flowers to encourage more blooms
  • Mulch to retain soil moisture and suppress weeds

Don't

  • Avoid overwatering, which can cause bulb rot ❌
  • Don't disturb roots when dividing
  • Limit fertilization to avoid excessive foliage growth

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deadhead
Divide
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower meadow with delicate purple flowersSunny border with grassy texture

Companion Plants

California poppy Lupine Yarrow Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Golden-eyed Grass questions

What zones can Golden-eyed Grass grow in?

Golden-eyed Grass is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Golden-eyed Grass deer resistant?

Yes — Golden-eyed Grass is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Golden-eyed Grass bloom?

Golden-eyed Grass typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Golden-eyed Grass need full sun?

Golden-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

Lucerne Blue-eyed Grass

Sisyrinchium angustifolium 'Lucerne'

Zones 4–9· 170 saves· from $10
Suwannee Blue-eyed Grass

Suwannee Blue-eyed Grass

Sisyrinchium nashii 'Suwannee'

Zones 4–9· 77 saves· from $17
Blue-eyed Grass

Blue-eyed Grass

Sisyrinchium brachypus

Zones 4–9· 68 saves
Western Blue-eyed Grass

Western Blue-eyed Grass

Sisyrinchium bellum

Zones 5–10· 57 saves· from $10
Narrow-leaved Blue-eyed Grass

Narrow-leaved Blue-eyed Grass

Sisyrinchium angustifolium

Zones 4–9· 43 saves· from $10
Puerto Yellow Blue-eyed Grass

Puerto Yellow Blue-eyed Grass

Sisyrinchium tinctorium 'Puerto Yellow'

Zones 4–9· 38 saves

Keep exploring

Grow Golden-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.

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