Lucerne Bluee-Eyed Grass with bright blue flowers and iris-like foliage.
Lucerne Blue-Eyed Grass with bright blue star-shaped flowers.
Close-up of bright blue star-shaped Lucerne Blue-Eyed Grass flowers.
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Lucerne Bluee-Eyed Grass with bright blue flowers and iris-like foliage.
Lucerne Blue-Eyed Grass with bright blue star-shaped flowers.
Close-up of bright blue star-shaped Lucerne Blue-Eyed Grass flowers.
All media depicts mature plants.

'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

More info on plant sizes

Size: One Quart
$23.00
Sale: $23.00 Each
Total: $23.00
Shipping calculated at checkout.
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee
Hand-Picked at Our Greenhouse
Shipped to Your Door
Arrives as a Young Plant
60 Day Risk-Free Guarantee

Description

‘Lucerne' blue-eyed grass (Sisyrinchium angustifolium) is a sun-loving ground cover with iris-like foliage! Starry blue flowers bloom for over ten weeks beginning in late spring. These iris relatives form a fan-like tuft of leaves that stays attractive throughout the year. It grows in clumps and slowly spreads by creeping rhizomes, making an ideal low maintenance ground cover. As a native plant, it's reliable and easy to grow! It serves as a great alternative to invasive liriope. Try planting it in rain gardens or along streams and ponds. It thrives in moist settings, provided it has sufficient drainage.

Details

Botanical name: Sisyrinchium angustifolium 'Lucerne'
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

Soil: Grows best in average, moist, well-draining soil.
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.

Your Questions About Building a Rain Garden, Answered

Rain gardens have taken the horticultural industry by storm, no pun intended. Here, Great Garden Plants answers all your questions about designing, planting, and caring for rain gardens.

Learn More

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:

bush distance

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:

bush distance zigzag

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.

Plant Spacing Calculator

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  • 5 stars: 14 (74%)
  • 4 stars: 3 (16%)
  • 3 stars: 2 (11%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
J. (Illinois)
Can't Wait Until Spring

I have some growing in another flower bed. I planted these in front of my home near the edge of the bed.

T
T.W. (New York)
Lucerne Blue Eyed grass

The plant was packaged with such care. I love this plant. I have it planted all around my pond and it’s doing great. Looks so pretty.

A
A.C. (Illinois)
Beautiful

This plant was so beautiful even with only a few flowers it had after planting it. Unfortunately it did not return the following year. I am still unsure why, but I will definately try it again.

K
K.D. (Ohio)
'Lucerne' Blue-Eyed Grass (Sisyrinchium)

I received it in very good condition and planted it right away. I love this plant. I have a very wet area in my yard and it is perfect there. It is flowering already!

T
T.T. (Virginia)
Gorgeous Blue Eyed Grass

Plants arrived healthy and ready to bloom. I was concerned about planting time due to several nights of below freezing nights. I kept them in a protected area for a while. After danger of freeze, I planted them. The blooms are full and beautiful.

s
s. (New Hampshire)
Love this plant

Plants arrived healthy and well packaged. Too late in the season for blooms, but they are doing well so far.

A
A. (New York)
All is Well and Beautiful

Plants arrival was a little delayed but they arrived healthy and well packed. Put them in the ground that day and ensured to keep them watered. They established easily and look great.

P
P.A.

Blue Eyed Grass arrived Friday evening alive, and i plan to put in ground Saturday. Rain forecast all day so a good day to plant!

C
C.M.

Very excited to watch them grow and bloom!

M
M.K. (Wisconsin)
Lovely Blue flowered Grass!

The Lucerne looks like it is doing well _ I'm hoping that it will spread throughout the yard!

J
J. (Ohio)
A must have in every garden!

I purchased blue eye grass just this spring and im blown away! Plants arrived healthy and in bloom. Planted them over a month ago and they did not skip a beat and are still blooming. Ephemeral or not, i want more!

W
W.M. (Maryland)
Impressed with shipping

Plants were not small and were shipped well. No problems!

J
J.K. (Illinois)
Blue Eyed grass

The beautiful plant arrived, well packaged and on time. It already had a bloom on it.

M
M.M.K. (Virginia)
Lovely accent plant

I plant these in groups of three as accents in different parts of my rather large garden. 16 plants in all and have had to replace 1 so far. They look great and interesting even when not flowering.

K
K.D. (Pennsylvania)
Didn't flower this year

The plants themselves seem to be healthy. Nothing's died yet. But, I never got to see flowers on these before frost set in. Better luck next year!

Hello! Thank you for leaving feedback. When transplanting young plants from a nursery pot to a garden, the plant allocates more energy to root development instead of shoot development (above ground). It's important for them to develop a robust root system so they can actually absorb the nutrients and water in the soil around them. Then after their root system is more developed they'll invest in their shoots and flower development. They generally spend their first year growing roots in their new home, the second year they have more energy to put into growth, and the third year, they are growing and flowering vigorously. This applies to plants in the garden center as well as plants you purchase online. We hope this helps. Happy Gardening!

D
D.Z. (Wisconsin)
So far so good

Year one and still alive, that’s all I ask.

N
N.H. (Wisconsin)
Blue eyed grass.

It is to early to tell, while a couple of blue blossoms have opened next summer should prove to be a better evaluation point.

Hello! Thank you for leaving a review. You are correct in that it's probably too early to tell. As I'm sure you're aware, when transplanting young plants from a nursery pot to a garden, the plant allocates more energy to root development instead of shoot development (above ground). It's important for them to develop a robust root system so they can actually absorb the nutrients and water in the soil around them. Then after their root system is more developed they'll invest in their shoots and flower development. They generally spend their first year growing roots in their new home, the second year they have more energy to put into growth, and the third year, they are growing and flowering vigorously. This applies to plants in the garden center as well as plants you purchase online. We hope this helps. Happy Gardening!

S
S.B. (Texas)
'Lucerne' Blue-Eyed Grass'

it is doing quite well

K
K.B. (Ohio)
Very pleased!

Beautiful plant and great accent...can't wait to see it grow larger every year.

B
B.

Does it grow from bulbs or rhizomes? How quickly does it spread? I need a durable fast growing ground cover.

Great Garden Plants

Hi! 'Lucerne' Blue-Eyed Grass comes as a quart-sized plant with roots that grows in clumps and spreads by creeping rhizomes, making an ideal low maintenance ground cover. It's also considered quite vigorous and fast-growing!

P
P.

Did the flowers open and close?

Great Garden Plants

Hi there! Yes, the flowers close in the evening and open in the morning.

T
T.

Low growing ground cover plants

Great Garden Plants

Hi there! 'Lucerne' Blue-Eyed Grass is a fantastic low growing ground cover that thrives in sun/part sun conditions, blooms prolifically (which butterflies love) and it's deer resistant. This perennial has a lot to offer!

H
H.

When and how long do the flowers bloom? Does it need to be deadheaded? Will it grow in regular soil not in just moist soil?

Great Garden Plants

Hello! 'Lucerne' Blue-Eyed Grass blooms in late spring to early summer. Deadheading spent blooms will provide a tidier appearance as well as prevent it from spreading. This is a plant that prefers moist, well-draining soil so regular watering is a must.

S
S.B.

Hello. I was wondering what size container the Blue Eyed grass 'Lucern' was shipped in. For some reason, a 1 quart size sticks in my head but I'm not sure. Also, is it just one tiny little root or is it rhizomes with runners...?
Thank you kindly,
Suzanne Best

Great Garden Plants

Hello! Yes, the Lucerne grass comes in a one quart size and theres's one plant per pot, it does spread by creeping rhizones. Check out this link for more information on plant sizes: https://www.greatgardenplants.com/pages/sizes