Sisyrinchium Species, California Golden-Eyed Grass, Golden Blue-Eyed Grass, Yellow-Eyed Grass

Sisyrinchiumcalifornicum

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Sisyrinchium (sis-ee-RINK-ee-um)
Species
californicum (kal-ih-FOR-nik-um)
Synonym
Sisyrinchium boreale
Sisyrinchium brachypus
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Smooth
Height
18-24 in. (45-60 cm)
Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
Hardiness
USDA Zone 7b: to -14.9 °C (5 °F)
Bloom Color
Gold (yellow-orange)
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Arroyo Grande, California

Castro Valley, California

Clayton, California

Fairfield, California

Richmond, California

San Francisco, California

Barbourville, Kentucky

Oklahoma City, Oklahoma

Gold Hill, Oregon

Portland, Oregon

Mc Kean, Pennsylvania

Freeland, Washington

Kalama, Washington

Olympia, Washington

Port Townsend, Washington(2 reports)

Vancouver, Washington

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Gardener's Notes:

4
positives
2
neutrals
0
negative
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M
Whidbey Island, WA (Zone 8b) | September 2013 | positive

This little spring/summer flower is just the thing to accent the blues and purples and reds I love in my garden. The little yellow flower...Read More

D
Prescott, AZ (Zone 7b) | September 2011 | positive

I'm on the central coast of California in zone 8b and this little plant does well here. It multiplies yearly by seeds and it stays tidy ...Read More

P
Denver, CO (Zone 5b) | June 2009 | neutral

Sisyrinchium californicum appreciates moist to wet conditions in spring and somewhat drier conditions in midsummer through winter. This w...Read More

G
(Zone 5a) | January 2006 | positive

My information says Yellow-Eyed Grass is hardy in zones 7-11, but so far, it has been hardy here in zone 5! I have been told that our ar...Read More

H
Northern California, CA | April 2004 | positive

This is a native California species from Monterey county and north. Will grow in any soil, likes wet marshy conditions and spreads readil...Read More

B
B
Baa
| August 2002 | neutral

A short lived, semi-evergreen perennial from Western North America.

Has fans of sword shaped, greyish green leaves. Bears ...Read More

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