Sisyrinchium Species, California Blue-Eyed Grass

Sisyrinchiumbellum

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Sisyrinchium (sis-ee-RINK-ee-um)
Species
bellum (BEL-lum)
Synonym
Sisyrinchium angustifolium var. bellum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
N/A
Bloom Color
Medium Blue
Blue-Violet
Lavender
Bloom Time
Late Winter/Early Spring
Mid Spring
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Brentwood, California

Chico, California

El Sobrante, California

Emerald Lake Hills, California

Malibu, California

Mission Viejo, California

Sacramento, California

Woodside, California

Kiowa, Colorado

Shreveport, Louisiana

Eugene, Oregon

Portland, Oregon(2 reports)

Dripping Springs, Texas

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Gardener's Notes:

3
positives
1
neutral
0
negative
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R
Shreveport, LA (Zone 8a) | November 2013 | neutral

We live in Shreveport, LA, which is in zone 8b. Blue-eyed grass grows here in considerable profusion. In fact, it is a bit of a weed in...Read More

W
Kiowa, CO (Zone 5b) | November 2013 | positive

I have the white variety and has overwintered here in Colorado at 6800+ ft ( Z5-6) for a number of years....love it!! Also starts easily...Read More

M
Eugene, OR | November 2013 | positive

This is a nice little perennial from the iris family that's compact enough to fit into a small garden. The grass-like foliage sprouts ni...Read More

N
Garden Home-Whitford, OR | April 2012 | positive

This pretty little plant has been slowly spreading in my (zone 8) yard for the last few years, and now I've finally put a name to it! It'...Read More

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