Lyme grass (Leymus arenarius)

Lyme grass

Also known as: Sea lyme grass, European dune grass

Lyme grass has stunning steel-blue leaves that are ideal for flower arrangements. The leaves of this grass, which is native to Northern Europe, are used for basket weaving, roof thatching, and paper production. Lyme grass attracts butterflies and is used as ground cover and can be grown as a container plant.

Scientific classification

Species

Lyme grass (Leymus arenarius)

Grasses, sedges and allies

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Perennial

Lifespan

Grass

Plant Type

Summer, Fall

Bloom Time

61 cm to 1.2 m

Plant Height

Gray, Silver, Blue

Stem Color

Evergreen

Leaf type

5 - 35 ℃

Ideal Temperature

Summer

Growth Season

Moderate

Growth Rate

Images of Lyme grass

Distribution of Lyme grass

Distribution Map

Lyme grass is a plant species with a native range extending across the northern and western regions of Eurasia, from coastal sands to inland grasslands. Additionally, it has traversed continental boundaries to become an introduced species in parts of North and South America, as well as in Australasia.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dunes by the coast

Quickly Identify Lyme grass

Steel-blue flat leaves distinguish lyme grass with a graceful arching growth form.

Floral spikes of beige transition from blue-green with slender, spike-like wind-pollinated flowers.

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Care Guide for Lyme grass

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Lyme grass, native to sandy coastal soils, thrives in moderate moisture with weekly watering. It features robust root systems to efficiently extract water during dry spells, making it resilient for xeriscaping or beachside gardening, effectively adapting to prevent saltwater saturation.

Fertilize: To promote vigorous growth, apply a 2-inch layer of mulch or compost around lyme grass annually, avoiding stem contact. Adjust the amount as lyme grass matures and according to seasonal changes. Water after application and use gloves to prevent over-fertilization risks like nitrogen burn.

Pruning: Lyme grass thrives in sandy soils with tall, bluish-green foliage. Early spring pruning promotes robust growth; cut back dead stems and remove damaged parts. This rejuvenates the plant, enhances aesthetics, and prevents overcrowding. Use clean, sharp tools for precise cutting and reduced stress.

Propagation: Lyme grass is a vigorous perennial grass ideal for sandy soils and coastal areas. It propagates well through root division, requiring careful separation during growth. Plant healthy clumps in well-drained soil with adequate spacing, and water regularly to support establishment, as lyme grass becomes drought-tolerant once mature.

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Images of Lyme grass

Distribution of Lyme grass

Quickly Identify Lyme grass

Care Guide for Lyme grass

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