Species blue-eyed grass
light-blue flowers with yellow center, green leaves and stems

blue-eyed grass

Sisyrinchium angustifolium SASSY GRASS

Blue-eyed grass, or Sisyrinchium angustifolium, is a stunning meadow plant with blue and purple flowers. Growing from one to two feet tall, it blooms in spring and sporadically throughout the summer and fall, adding the perfect touch of bright colour to lawns and gardens. Its semi-evergreen leaves are used by some species of Lepidoptera for laying eggs. With a preference for full sun and dry soil, Sisyrinchium angustifolium will thrive in many climates and require minimal maintenance, making it an excellent addition to any outdoor space.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Division,Seed Propagation,Cutting,Layering Propagation

Hardiness Zone:

4 - 9

Flowers:

Blue Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Moderate

Salt Tolerant:

Yes

Care Level:

Moderate

watering

Blue-Eyed Grass (Sisyrinchium angustifolium SASSY GRASS) should be watered regularly but as it is a native wildflower, it requires less water than most other cultivated plants. Water deeply and occasionally, allowing the soil to dry out between waterings. During the summer months, water once every week to 10 days, and reduce watering in the winter months to once every 3 weeks. Make sure the soil never stays too wet as this can cause root rot.

sunlight

Blue-eyed Grass (Sisyrinchium angustifolium) grows in full sun but can tolerate some light shade. It prefers soil that is moist but not soggy. It requires 4-6 hours of sunlight per day, with an ideal time being in the mornings. It can also tolerate some afternoon sun, depending on the climate. Blue-eyed Grass requires being watered during hot and dry periods but should not be over watered. The best time to water is early morning or late evening to prevent its leaves from burning due to the heat of the sun. Blue-eyed Grass will thrive in sunny and warm locations but will not do well in cold and wet climates.

pruning

Blue-eyed grass should be pruned in early spring, just before the new growth starts. Prune off any dead, brown, or wilted foliage to encourage healthy, full growth. Additionally, prune off any shoots that grew too close together; this will encourage better air circulation and reduce the risk of disease. To maintain the appearance of the blue-eyed grass, lightly pinch back the green foliage 1–2 times during the summer to stimulate more blooms. In the fall, after the flowering season is over, cut the clumps of foliage back to about 4 inches tall to promote healthy growth the next spring.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Blue-eyed grass typically begins flowering in April and continues through June.

Starts Flowering

Blue-eyed grass typically begins flowering in April and continues through June.

Hardiness Map