Blue Dune Lyme Grass

Elymus arenarius 'Blue Dune'

100% of 100
More intense pastel blue blades are coveted for landscapes. Slender beige flower spikes rise a foot above foliage in late summer. Spreads vigorously by rhizome, filling in large areas quickly, may require containment. Tolerant of seasonal clean up by mowing at winter's end. Important problem solver for wind, salt air and sandy soils along the immediate coast. Although drought resistant, adequate watering ensures best foliage quality. Herbaceous. Full sun or light shade. Very fast growth to 2 feet tall and spreading indefinitely.
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4 - 9

Your climate might be too cold for this plant:


Full sun, Partial sun

Once established, water occasionally; more in extreme heat.

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Botanical PronunciationEL-ih-mus ar-en-AR-ee-us
Average Size at MaturityQuickly forms clumps 2 ft. tall and wide; 3 ft. tall in bloom.
Bloom TimeLate Summer
Deciduous/ EvergreenHerbaceous
Flower ColorBrown
Foliage ColorSilver-blue
Garden StyleCottage, Mediterranean, Rustic
Growth HabitSpreading
Growth RateFast
Landscape UseBorder, Erosion Control, Firescaping/Fire Wise, Mass Planting, Rock Garden, Hillside, Wildlife Garden, Ground Cover
Light NeedsFull sun, Partial sun
Soil NeedsAll-Purpose Plant Food
Special FeatureClump Forming, Dramatic Foliage Color, Easy Care, Extreme Cold Hardiness, Naturalizes Well, Waterwise, Fast Growing, Bird Friendly
Water NeedsLow
Watering NeedsOnce established, water occasionally; more in extreme heat.
Key FeatureDramatic Color and Texture

Grows easily in a wide range of soils; less vigorous in dry, clay soils. Water regularly in first growing season to establish an extensive root system. Once established, reduce frequency; tolerates periodic dry spells. Space 2 to 3 ft. apart as groundcover; closer for faster coverage. May be cut back in late spring to rejuvenate foliage.

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This Plant's Growing Zones: 4 - 9

Your climate may be too cold for this plant

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