Sisyrinchium angustifolium ‘Lucerne’
Overview
Uses: Border edging, rock gardens, pathway accents, meadow-style plantings, pollinator gardens.
Benefits: Violet-blue star-shaped blooms with golden centers, narrow iris-like foliage, compact mounding habit, attracts pollinators, cold hardy and low maintenance.
USDA Hardiness Zones: 5–9
Sun: Full Sun to Light Shade
Life Cycle: Hardy Perennial
Growth Habit: Clumping, Mounding — narrow blades forming tidy grassy tufts.
Bloom Color: Blue-Violet with Yellow Centers
Mature Height: 10–12"
Mature Width: 10–12"
Bloom Season: Late Spring to Early Summer
Growth Rate: Moderate
Summary
A compact native perennial that brings refined texture and vivid spring color to sunny borders.
Sisyrinchium angustifolium ‘Lucerne,’ commonly known as Blue-Eyed Grass, produces star-like blue-violet flowers accented by bright yellow centers. Though not a true grass, its slender foliage forms neat, iris-like clumps that add fine texture to pathways, rock gardens, and meadow-style plantings.
This cultivar is valued for its cold hardiness and reliable spring bloom. Its compact size makes it ideal for edging and small garden spaces, where its clean form and bright flowers create a crisp, natural look.
Care
Sisyrinchium angustifolium ‘Lucerne’ Care
Plant in full sun for best flowering, though light shade is tolerated. In hotter climates, afternoon shade can help maintain vibrant foliage.
Grow in well-drained soil with moderate moisture. Water regularly during establishment. Once established, plants tolerate short dry periods but perform best with consistent moisture.
Cut back foliage in late fall or early spring if desired. Divide clumps every few years in spring to maintain vigor.
If needed, apply a light spring feeding with a slow release fertilizer.
Size
What Size is the Sisyrinchium angustifolium ‘Lucerne’ for Sale Online?
Plants ship in a greenhouse-grade grow pot and are actively growing perennials. Size at shipment reflects current growth stage. Please contact us with specific sizing questions.
How Large Does Sisyrinchium angustifolium ‘Lucerne’ Grow?
Mature plants typically reach 10–12 inches tall and wide, forming compact clumps that gradually expand over time.
Additional Information
What are some common names for this plant?
Sisyrinchium angustifolium is widely known as Blue-Eyed Grass.
Is Blue-Eyed Grass a true grass?
No. Despite its name, it is not a true grass. It belongs to the iris family and shares similar foliage and flower structure.
Is Sisyrinchium ‘Lucerne’ native?
Yes. This species is native to North America and fits naturally into native plants of North America gardens. It also complements selections in our perennials and groundcovers collections.
