Idaho Blue-eyed Grass
Sisyrinchium idahoense

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Sisyrinchium (sis-ee-RINK-ee-um) (Info)
Species: idahoense (eye-duh-ho-EN-see) (Info)

Category:

Perennials

Height:

6-12 in. (15-30 cm)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

USDA Zone 3b: to -37.2 C (-35 F)

Sun Exposure:

Full Sun

Danger:

Unknown - Tell us

Bloom Color:

Medium Blue

Bloom Time:

Mid Summer

Foliage:

Herbaceous

Smooth-Textured

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Regional

This plant has been said to grow in the following regions:

Wilmington, Delaware

Wilkes Barre, Pennsylvania

Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On Aug 8, 2004, shortcm from Wilmington, DE (Zone 7b) wrote:

Invasive in northern Delaware. I planted this 3 years ago, pulled it out 2 years ago, and am STILL pulling babies, even those with only 3 leaves. The tiniest baby grows rapidly into a large clump.. The flowers were very pretty, but very small. Grew in full sun and mostly-shade, dry and wet.