'Lucerne' Blue-Eyed Grass (Sisyrinchium)
Perennial
- Bright blue, star-shaped flowers rise above foliage!
- Native to North America.
- Vigorous grower with prolific blooms makes an excellent flowering ground cover.
- Deer resistant & pollinator-friendly, enjoyed by butterflies.
- Zones 5-8, sun/part sun, 10" tall x 15" wide at maturity.
ZONE
EXPOSURE
HEIGHT
Description
Details
Common name: Blue-eyed grass
Zone: 5 - 8
Sun exposure: Sun (> 6 hours sun) to part-sun (4-6 hours sun)
Height x width: 10" X 15"
Flower color: Sky blue
Foliage color: Green
Season of interest: Spring and summer
Bloom time: Late spring, early summer
Features: Wet soils, space savers, rare & unusual, rain gardens, ground covers, deer resistant, container plants, cold tolerant, best for beginners
Uses: Accent, alpine and rock, edging, ground cover, massing, naturalizing, rain garden, small spaces, underplanting, waterside
How to Grow
Light: Sun (> 6 hours sun) to part-sun (4-6 hours sun)
Water: Needs regular watering - weekly, or more often in extreme heat.
Spacing: 15 inches
Fertilizing: If needed, apply a low dose of high-nitrogen fertilizer in spring.
Winterizing: No special care is needed.
Maintenance & pruning: Remove old foliage in spring before new leaves emerge. Most varieties will self-sow; therefore, seed heads should be removed if you don't want it to spread. Divide clumps every 3-5 years in early spring. Easy to propagate by dividing plantlets away from the parent plant. Plant them as individual specimens for increased spring beauty.
Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Not sure just how many plants will fit in your garden? Our calculator gives you the exact amount of plants required for your space. Simply update the values and the calculator will re-calculate accordingly. Spacing information can be found in the 'How to Grow' tab on each plant's page.