perennialN. America Native

Golden-eyed Grass

Sisyrinchium californicum

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Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9

Water

Moderate to wet

Humidity

Average

Lifespan

Perennial

Native To

Pacific Coast of North America

Toxicity

Non-toxic

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.

Bloom Period:

EarlyLate

Uses & Benefits:

Adds delicate purple blooms to sunny gardens, attracting pollinators.

Requires minimal maintenance once established.

Native plant supporting local biodiversity.

Marketplace

Where to Buy

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Planting

How to Grow

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

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

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.