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Blue Dune Lyme Grass

Leymus arenarius Blue Dune
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Blue Dune Lyme grass is a tough perennial that adds vivid blue color and unique texture to your landscape. This versatile perennial is great for erosion control. Tolerating dry and salty conditions as well as pollution and urban environments this hardy plant will stay faithful and prominent for years to come! Blue Lyme grass is a long lived, low maintenance perennial. 

This bright blue ornamental grass maintains its color throughout the growing season. Mature height and width is about 2 feet, but the summer plumes reach closer to 3 feet. 

Key Features

  • Great for coastal regions. Blue Dune Lyme grass is the ideal plant to use in coastal regions due to its ability to withstand sand, sun, salt, and drought.
  • Tough and adaptable. This grass can grow in any soil condition as long as the ground isn't wet. Blue Dune grass is cold and heat hardy and grows throughout the US from zones 4 to 9.
  • Excellent and lasting blue color. Blue Dune maintains its vibrant color throughout the growing season and beyond. This semi-evergreen maintains its blue color even through the winter in milder climates.
  • Erosion control. Blue Dune spreads by strong and vigorous rhizomes making it perfect for preventing erosion. This grass is superb for hillside and slope plantings.

Pro Tip: Trim back after blooming to get a fresh flush of blue growth in autumn.

Shipping Restriction AZ
Soil Type Well-drained
Sunlight Full Sun, Part Sun
Drought Tolerance Good
Mature Height 2-3 Feet
Mature Width 2-3 Feet
Fall Color Blue

How to Care

When planting your Blue Dune Lyme Grass choose the best location for this plant to thrive. This grass is recommended for growing zones 4 to 9. Choose a spot that is full to part sun for best results. This grass is extremely tolerant to a variety of soil as long as it isn't wet.

Water deeply once or twice weekly while establishing to help the roots grow properly. After the first year this grass is extremely drought tolerant and only rarely needs water. Water thoroughly in extreme heat in the first summer especially in warm climates. Fertilize in spring with a slow release fertilizer for best results. Trim back after flowering for a crop of fresh leaves. Prune end of season grass to the ground in early spring to prepare for new growth.

Blue Dune Lyme grass is extremely hardy as well as pest and disease resistant. It is also deer, rabbit, pollution, drought, and salt tolerant.

*Do not over water the Blue Lyme grass due to its sensitivity to water.

Shipping Restriction AZ
Soil Type Well-drained
Sunlight Full Sun, Part Sun
Drought Tolerance Good
Mature Height 2-3 Feet
Mature Width 2-3 Feet
Fall Color Blue

Landscaping Ideas

Blue Dune Lyme grass is versatile in the landscape. Blue Lyme as a low maintenance groundcover. It looks great when planted around boulders for a natural look.This grass is perfect for erosion control and covering entire hillsides. Use it in mass bed plantings to add different textures to your landscape. This hardy grass is an excellent contrasting compliment in containers.

Shipping Restriction AZ
Soil Type Well-drained
Sunlight Full Sun, Part Sun
Drought Tolerance Good
Mature Height 2-3 Feet
Mature Width 2-3 Feet
Fall Color Blue
For additional Ornamental Grass options and colors, check out our Pink Muhly Grass or our entire Ornamental Grass Collection.

Shipping Details

We plan each shipment to avoid your plants sitting in transit over the weekend during the summer months. This means your order may be held until the following Monday to ensure the shortest delivery time. We guarantee that your plants arrive at the highest quality possible.

Please see the below transit map that specifies an average amount of days after your order has shipped.

Amount of Order
Shipping Cost
Less than $15
Free Shipping

Customer Reviews

4.2 Based on 9 Reviews
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Sandra G.
United States United States

Blue Dune Lyme Grass

Came packaged well and plants are healthy.

Michael L.
United States United States


The Blue Dune Lyme Grass showed up here promptly, in VERY good/healthy condition, and my wife and I LOVE it. If you are looking for an attractive grass, consider this plant. You won't be sorry!

MacKenzie H.
United States

Some blue, some green

Hoping once these get planted they are all the same color. Kind of vary between green, blue and tan. I’ve purchased Elijah blue fescue at big box facilities and these look much healthier.


Blue dune Lyme grass

The plants were packaged well but a lot of the grass is brown and looks soggy and week with easy breakage.. they will come in with new growth, but for now they look horrible in the ground.

Mark verified customer review of Blue Dune Lyme GrassMark verified customer review of Blue Dune Lyme Grass
Gregg N.
United States

My Review

Overall the plants and the transit experience was pretty good, but I was a little disappointed on how "root bound" in the container the plants were. This gives the impression they have been "sitting around" for a while. The dense roots didn't even allow me to work the root ball with my fingers per your instruction sheet.

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