Orchardgrass
Dactylis glomerata · Cool-season, Perennial, C3 grass
AI-generated identification · may be incorrect
Grass Category
Pasture/Forage Grass, Lawn/Turf (sometimes in mixes), Erosion Control
Hardiness Zones
USDA Hardiness Zones 3-9. Excellent cold tolerance and adapts well to transition zones, though can struggle under extreme prolonged summer heat and humidity.
Grass Family
Poaceae, subfamily Pooideae, tribe Poeae
Variety / Cultivar
Common wild-type or standard forage cultivars
About This Grass
Forms distinct, coarse clumps with folded leaves that are characteristically blue-green to grayish-green. Can grow up to 2-4 feet tall if left unmowed. Features distinctive compressed, clustered seed heads (glomerate panicles) that resemble small clusters at branch ends.
Blade Characteristics
Medium to coarse width (3-8mm), flat or folded, pointed tips, blue-green to gray-green color, folded vernation in the bud, prominent midrib, membranous ligule, and noticeably absent auricles.
Root System
Deep, fibrous root system providing good drought resistance once established. Establishes rapidly from seed, though it does not produce significant rhizomes or stolons, relying entirely on tillering and bunch expansion.
Growing Information
Origin Region
Native to Europe, temperate Asia, and northern Africa; naturalized worldwide in temperate regions
Growth Habit
Bunch-type (clump-forming) with a strong tendency to form distinct tufts or tussocks
Sunlight & Water Needs
Thrives in full sun to partial shade; exhibits good shade tolerance compared to other cool-season grasses. Moderate to high water needs for optimal yield, but possesses moderate drought tolerance due to deep roots.
Mowing & Maintenance
Mow at 2.5 to 4 inches if maintained as turf. For forage, cut before heading. Requires moderate to high fertility (2-4 lbs N per 1000 sq ft annually for pastures). Medium maintenance level overall.
Special Characteristics
Good shade tolerance, high forage palatability for livestock, moderate wear tolerance as a bunch grass, excellent erosion control on slopes, and rapid spring green-up.
Ecological Information
Introduced species in North America. High value as a pasture forage and wildlife cover. Provides good soil stabilization and erosion control, though can become weedy in natural woodland edges if left unmanaged.