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Photo by Thompson's Nursery

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Sisyrinchium californicum

Also Known As

Sisyrinchium boreale
Sisyrinchium brachypus
Yellow-Eyed Grass

Plant type

perennial, bulb / corm / tuber

size

H: 8"-10"
W: 8"-10"

planting zones

8a-10b

More Options

Sisyrinchium californicum plant details

Sisyrinchium californicum is a broadleaf semi-evergreen perennial bulb / corm / tuber with blue and green foliage. In spring and summer yellow flowers emerge. Features grassy texture. Grows well with sun - mostly shade and regular water. Does well in average and gritty soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Sisyrinchium californicum

Plant type: perennial bulb / corm / tuber
Plant family: iridaceae
Foliage: semi-evergreen blue and green
Mature size: 8 IN - 10 IN - wide, 8 IN - 10 IN - tall
Flowers: yellow blooms in spring and summer
Uses: long-blooming, rock garden, self-sowing

GROWING CONDITIONS for Sisyrinchium californicum

USDA Zones: 8a - 10b
Sun exposure: sun - mostly shade
Watering frequency: regular
Resistant to: deer, verticillium wilt
Soil needs: average and gritty

Nursery contributed plant descriptions

Sisyrinchium californicum is known as the golden or yellow blue-eyed grass. It has small grass- or iris-like foliage and cheerful six-tepaled, star-shaped yellow flowers that bloom in succession from late spring into summer. A perfect little edger for pathways or at the front of the border or in rock gardeners or containers. Native to BC south to central California. Photo: Wikipedia.

By: Phoenix Perennials and Specialty Plants Ltd.

An evergreen, herbaceous perennial growing in 8?-12" tall clumps, found in moist places. Bright yellow flowers cover the plant throughout spring and summer. Its compact iris-like leaves darken and die back in fall & should be cut back. Golden-eyed grass likes moisture, especially in summertime. When it receives adequate moisture it will re-seed freely. Excellent on the edge of a lawn or in a flower border; in alpine/rock gardens; or next to a water feature for maximum bloom. Native to California and is also found outside of California, but is confined to western North America. Attracts seed eating birds, and butterflies are attracted to its blossoms. No Historical Uses found. Found in freshwater-marsh. Communitites located in Freshwater Wetlands, wetland-riparian Between 0 and 2,000 feet.

By: The Watershed Nursery

A clump forming evergreen perennial with sword shaped, grey-green foliage and bearing dark veined, yellow, open star shaped flowers up to 2cm across, on slender, branching, winged stems, in Spring and Summer. An attractive plant that can be short lived, although it should self seed freely. Likes well drained soil with a neutral to alkaline pH.

By: Zephs

Dull green leaves to 16" and a bit broader than those of blue-eyed grass. Yellow flowers open from May to June. Good choice for wet, poorly drained sites. It can be invasive in favorable situations. Regular water. Hardy to 15 °F. California.

By: Native Sons

Blooms: spring-fall, yellow/ semi-evergreen iris like foliage Zone 6-9. 6"-12", PNW, part shade-shade, moist, well drained

By: Keeping it Green Nursery

Yellow flowers. Iris-like green foliage.

By: Little Prince of Oregon

Native to Coastal California from Monterey County & northwards, “Yellow-Eyed Grass” is almost ever blooming as long as it has ample moisture. 8” to 12” tall & wide, numerous sunny yellow star-flowers are borne just above the tufted, grass-like, smooth foliage. Nice as edging or next to a water feature or water faucet for maximum bloom. Foliage darkens in Fall & should be cut back.