Leymus – Blue Dune 

Also known as Blue Lyme Grass or Blue Dune Lyme Grass, Leymus arenarius ‘Blue Dune’ is a striking ornamental grass prized for its silvery-blue to steel-blue foliage and bold architectural form. It spreads by rhizomes, forming broad, textured clumps that provide visual interest and erosion control where needed. In late spring to summer, it sends up upright flowering stalks that mature to buff tones, adding vertical contrast to its dense foliage. Its cool-season growth habit and salt/drought tolerance make it suitable for challenging sites such as coastal gardens, slopes, and dry borders.

• 1 - 2.5" Plug
• Silvery-blue / steel foliage
• Upright, spreading habit
• Buff-colored summer seed stalks
• Good for erosion control, salt/drought tolerant

Specifications	Details
Colour	Silvery-blue / steel blue foliage
Hardiness Zone	3 - 9
Plant Height	24 – 36 in (≈ 60 – 90 cm) without seed stalks; up to ~ 3 ft including bloom stalks
Plant Width / Spread	24 – 36 in (≈ 60 – 90 cm)
Sun Requirements	Full sun to partial shade
Fragrant	No
Deer Resistant	Yes
Plant Timing / Division	Divide or plant in spring or fall; division recommended to manage spread
Bloom Timing	August - October
Plant Depth	Crown / rhizome just at or slightly below soil surface (standard grass practice)
Plant Spacing	18 – 24 in (45 – 60 cm) when initially planting; allow more room as it spreads