How to Grow Orchardgrass
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Orchardgrass
Dactylis glomerata
grassOrchardgrass is a cool-season perennial grass widely used for pasture, hay, and forage production. It is highly palatable to livestock and establishes quickly, making it a staple in agricultural systems across temperate regions. Known for its deep root system and drought tolerance once established, it thrives in cooler climates and mixed pasture systems.
When should you plant Orchardgrass in your zone?
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Example Orchardgrass timeline · Pittsburgh, PA (Zone 6b)
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Plant Orchardgrass
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Orchardgrass
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Orchardgrass dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, with best performance in zones 4-7
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Get my Orchardgrass timeline →Growth Stages
Germination & Seedling
2-4 weeksSeeds germinate in 7-14 days under moist conditions. Seedlings emerge with fine, needle-like leaves and develop a shallow fibrous root system initially.
Keep soil consistently moist but not waterlogged. Protect seedlings from heavy foot traffic or grazing for 4-6 weeks. Avoid competition from weeds.
Establishment & Vegetative Growth
4-8 weeksPlant develops deeper root system and tillers (shoots) multiply, creating dense turf. Leaf blades grow to 6-12 inches. Plant gradually fills in bare spots.
Allow grass to reach 3-4 inches before first grazing. Continue regular moisture. Light nitrogen application (20-30 lbs/acre) encourages tillering. Remove competing weeds.
Vegetative (Mature Plant, Non-Reproductive)
Weeks 8-12+ into seasonFully established plants with robust tiller production and dense root system 2-3 feet deep. Leaves dark green, 4-10 mm wide. Plant reaches 12-24 inches in height.
Maintain 2-3 inch height for grazing pastures. Graze rotationally to prevent overgrazing. Apply nitrogen at 40-60 lbs/acre annually split across seasons. Prevent reproductive stage if maximum forage quality desired.
Reproductive (Heading & Flowering)
2-3 weeks from boot stage to seed maturityGrass produces distinctive panicle-like inflorescences (clusters of spikelets) in a dense, compact head, typically pale green to golden. Plant height reaches 24-36 inches.
Monitor closely; heading marks decline in forage palatability and digestibility. Cut/graze at boot or early head stage (before anthesis) for best quality. If seed production desired, allow full flowering and seed maturation.
Seed Maturity & Dormancy
Variable; extends until hard frost in fallSeedheads darken and harden; seeds become viable. Plant enters dormancy in fall/early winter in cool regions. Mature seeds are small, light brown, with distinctive curved appearance.
Harvest seed commercially by swathing and combining. For pasture management, mow or graze to prevent mature seed from self-seeding unless reseeding desired. Apply fall dormancy treatments as needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Scouting for larvae; natural predators like ground beetles; insecticide application if populations exceed 10-15 per square foot
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Monitor during hot, dry periods; encourage thick, vigorous sod through proper management; insecticide if thresholds exceeded
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Rarely economically damaging; proper seedbed preparation reduces incidence; avoid excessive nitrogen at seeding
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More common in coarser pastures; overseeding and proper grazing management reduce impact
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Maintain balanced grazing to minimize bare ground; predatory birds; insecticide only if populations extremely high
Uses
Livestock Forage & Nutrition
CulinaryOrchardgrass is highly palatable to cattle, sheep, and horses, providing excellent nutrition when grazed at boot stage or harvested for hay. It is a staple component of pasture mixes for its balanced fiber, protein, and digestible energy content. [source]
Hay Production
CulinaryOrchardgrass makes premium quality hay with good nutrition retention and long storage life. When harvested at optimal stage, it retains higher digestibility than many other grass hays. [source]
Pasture & Turf Management
HouseholdUsed extensively in pasture seed mixes for grazing systems and increasingly in cool-season turf blends for athletic fields and lawns. Its deep root system provides excellent erosion control and drought tolerance. [source]
Wildlife Habitat & Food
WildlifeProvides cover and forage for wild herbivores, gamebirds, and seed-eating birds. Its dense growth structure offers shelter for nesting birds and ground-dwelling wildlife. [source]
Erosion Control & Soil Health
HouseholdDeep fibrous root system (up to 3+ feet) prevents soil erosion, improves soil structure, and increases organic matter. Commonly used in conservation plantings and riparian restoration. [source]
Harvest Tips
For pasture: Graze when grass reaches 3-4 inches, and remove cattle when grass is grazed to 2 inches to allow regrowth. Graze before heading for maximum forage quality. For hay: Cut at boot stage or early head stage (flowering begins) for highest digestibility and palatability. First cut typically May-June in northern zones; allow 4-6 weeks regrowth between cuts. For seed: Cut when seedheads turn brown, condition in windrow, and combine when moisture reaches 12-15%.
Fun Facts
- 🌱 Orchardgrass got its name from its historical use in orchards as a pasture grass between fruit trees, where its shade tolerance allowed it to thrive beneath tree canopies.
- 🌱 The plant can produce 50+ tillers (shoots) from a single seedling, creating dense stands capable of supporting intensive grazing when properly managed.
- 🌱 Orchardgrass is one of the few cool-season grasses that can bloom twice in a single season—once in spring and again in late summer under favorable conditions—though the second growth is typically of lower forage quality.
Gardening Terms
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